Shanghai Huabang Industrial Business Network - High voltage through wall conduit

[High voltage through wall conduit]CB-40.5/630A-2000A type wall conduit

2026-6-14 11:21:29

CB-40.5/630A-2000A type through wall conduit

[High voltage through wall conduit]CWB-20/630-4000A Indoor and outdoor copper conductor high-voltage wall bushing

2026-6-14 11:07:46

CWB-20/630-4000A indoor and outdoor copper conductor high-voltage wall bushing

[High voltage through wall conduit]CB-10/1500A Indoor copper aluminum conductor wall conduit

2026-6-14 11:07:35

CB-10/1500A indoor copper aluminum conductor wall bushing

[High voltage through wall conduit]CB-10/1000A Indoor copper aluminum conductor wall conduit

2026-6-14 11:07:23

CB-10/1000A indoor copper aluminum conductor wall bushing

[High voltage through wall conduit]CB-10/600A Indoor copper aluminum conductor wall conduit

2026-6-14 11:07:13

CB-10/600A indoor copper aluminum conductor wall bushing

[High voltage through wall conduit]CB-10/400A Indoor copper aluminum conductor wall conduit

2026-6-14 11:07:01

CB-10/400A indoor copper aluminum conductor wall bushing

[High voltage through wall conduit]CB-6/600 Indoor copper aluminum conductor through wall conduit

2026-6-14 11:06:50

CB-6/600 indoor copper aluminum conductor wall bushing

[High voltage through wall conduit]CWWL-10 series wall conduit

2026-6-14 11:02:54

CWWL-10 series wall conduit

[High voltage through wall conduit]CWL-35 series wall conduit

2026-6-14 11:02:44

CWL-35 series wall conduit

[High voltage through wall conduit]CL-10 series wall conduit

2026-6-14 11:02:33

CL-10 series wall conduit

[High voltage through wall conduit]CL-6 series wall conduit

2026-6-14 11:02:22

CL-6 series wall conduit

[High voltage through wall conduit]CP-018 High voltage wall conduit for indoor and outdoor use

2026-6-14 10:57:39

CP-018 High voltage wall conduit for indoor and outdoor use

[High voltage through wall conduit]CP-021 High voltage wall conduit for indoor and outdoor use

2026-6-14 10:57:28

CP-021 High voltage wall conduit for indoor and outdoor use

[High voltage through wall conduit]Wall casing under high radiation field strength

2026-6-14 10:45:41

Main performance indicators of wall bushing under DC300kV high radiation field strength

Rated voltage: 66kV, 110kV, 132kV, 145kV
Applicable cable cross-section: not exceeding 2000mm2
Dielectric loss factor: not greater than 0.002
Partial discharge capacity: not exceeding 5pC

[High voltage through wall conduit]Transformer bushing

2026-6-14 10:45:29

BFRG-126kV transformer bushing

[High voltage through wall conduit]FCRG3 High current dry-type capacitive wall bushing

2026-6-14 10:45:18

Main performance indicators of FCRG3 high current dry-type capacitive wall bushing

Rated voltage Ur: 12kV, 24kV, 40.5kV, or higher
Rated current Ir: �� 4000A (larger currents require special customization)

FCRG3 high current dry-type capacitive wall bushing

[High voltage through wall conduit]FCRG2-L Attached current transformer type wall bushing

2026-6-14 10:45:07

Main performance indicators of FCRG2-L current transformer type wall bushing

Rated voltage Ur: 12kV, 24kV, 40.5kV, 72.5kV, 126kV, 252kV
Rated current Ir: �� 4000A (larger currents require special customization)
Insulation level: (see table below)
Temperature rise: not exceeding 85K

[High voltage through wall conduit]FCRG2-12~252kV dry-type capacitor wall bushing

2026-6-14 10:44:55

FCRG2-12~252kV dry-type capacitor wall bushing is composed of main components such as carrier fluid, capacitor core, outer sheath, umbrella skirt, flange, and end structure. There are measuring terminals on the flange, which can be opened for partial discharge and dielectric loss factor measurement. They should be reliably grounded during normal operation. The two ends of the product are equipment cable clamps.

reference standard
GB/T 4109-1999 "Technical Conditions for High Voltage Bushings"

Product Model
FCRG2 -L�� 1 / 2
F: Organic composite main insulation
R: Capacitive type G: dry, silicone rubber external insulation
2: Design serial number, indicating the second design
-L is a through type current transformer with LRB type. If there is no CT, then there is no - L
Among them: 1: Rated voltage, unit: kV
2: Rated current, unit: A
Product Features
Dry type capacitor insulation, oil-free, gas free, porcelain free
High anti pollution level
maintenance-free
Terms of Use
Environmental temperature: -50 �� to+50 ��
Altitude: The standard design is 1000m. When it exceeds 1000m, it shall be corrected according to GB 311

Main performance indicators of FCRG2-12~252kV dry-type capacitive wall bushing
Rated voltage Ur: 12kV, 24kV, 40.5kV, 72.5kV, 126kV, 252kV
Rated current Ir: �� 4000A (larger currents require special customization)
Insulation level: (see table below)
Temperature rise: not exceeding 85K
Electrical testing
60s power frequency withstand, partial discharge test, dielectric loss, capacitance, etc
operation and maintenance
maintenance-free

Ordering Instructions
Rated voltage and rated current are required, if equipped with LRB type current
Transformers also need to provide the number of secondary windings and their performance parameters (such as rated current ratio, winding accuracy level, rated load, etc.);

[High voltage through wall conduit]CME Busbar through wall conduit

2026-6-14 10:39:31

Model number	Product number		rated voltage kV	Bending and breaking Bad load kN	Chief of Staff mm	weight kg
	New product number	Old product number
CME-10	two hundred and twenty-one thousand one hundred and eleven	twelve thousand two hundred and twenty-three	ten	thirty	four hundred and eighty-eight	eighteen point five

CME busbar wall bushing

[High voltage through wall conduit]CLB-10KV/200-1500A Indoor aluminum conductor through wall conduit

2026-6-14 10:35:34

CLB-10KV/200-1500A indoor aluminum conductor wall bushing

[High voltage through wall conduit]CWLB-35KV/(400-3000)A High voltage wall conduit for indoor and outdoor aluminum conductors

2026-6-14 10:35:23

CWLB-35KV/(400-3000) A indoor and outdoor aluminum conductor high-voltage wall bushing model

Installation and usage instructions
1. The through wall porcelain bushing is suitable for power stations and substations with rated AC voltage below 40.5kV, installation location with ambient temperature of -40 ��~+40 ��, and altitude not exceeding 1000m.
2. Indoor through wall conduit is not suitable for places where it has a destructive effect on the porcelain glaze, metal accessories, and cement adhesive of the conduit or can reduce the electrical performance of the conduit.
3. If partial discharge occurs during the operation of the through wall porcelain bushing, the flange or inner cavity of the porcelain bushing should be checked for local detachment of the sprayed aluminum layer. If so, temporary pressure equalization measures should be taken in a timely manner.
4. The wall holes for installing busbar through wall ceramic sleeves should be drilled according to the maximum size of their flange reinforcement bars.

Appearance and installation dimensions

model	drawing number	Rated voltage KV	Rated current A	5-second short-time current kA not less than	Outdoor nominal creepage distance mm	The power frequency voltage kV shall not be less than				BIL KV peak not less than	Bending failure load kN not less than
model	drawing number	Rated voltage KV	Rated current A	5-second short-time current kA not less than	Outdoor nominal creepage distance mm	Dry tolerance	Moisture tolerance	puncture	Visible corona	BIL KV peak not less than	Bending failure load kN not less than
CWLB-35/400	one	thirty-five	four hundred	seven point two	five hundred and ninety-five	one hundred and ten	eighty	one hundred and seventy-six	twenty-five point eight	one hundred and ninety-five	seven point five
CWLB-35/600	one	thirty-five	six hundred	twelve	five hundred and ninety-five	one hundred and ten	eighty	one hundred and seventy-six	twenty-five point eight	one hundred and ninety-five	seven point five
CWLB-35/1000	two	thirty-five	one thousand	twenty	five hundred and ninety-five	one hundred and ten	eighty	one hundred and seventy-six	twenty-five point eight	one hundred and ninety-five	seven point five
CWLB-35/1500	two	thirty-five	one thousand and five hundred	thirty	five hundred and ninety-five	one hundred and ten	eighty	one hundred and seventy-six	twenty-five point eight	one hundred and ninety-five	seven point five
CWLB-35/2000	two	thirty-five	two thousand	forty	eight hundred and ten	one hundred and ten	eighty	one hundred and seventy-six	twenty-five point eight	one hundred and ninety-five	seven point five
CWLB-35/3000	two	thirty-five	three thousand	fifty	eight hundred and ten	one hundred and ten	eighty	one hundred and seventy-six	twenty-five point eight	one hundred and ninety-five	seven point five

nine hundred and seventy

eight hundred and fifteen

three hundred and seventy-two

sixteen

seventy-five

two hundred and twenty-five

4-��15

2-��12

two hundred

thirty

fifteen

forty

five

nine hundred and seventy

eight hundred and fifteen

three hundred and seventy-two

sixteen

seventy-five

two hundred and twenty-five

4-��15

2-��12

two hundred

thirty

fifteen

forty

eight

nine hundred and eighty

eight hundred and fifteen

three hundred and seventy-eight

sixteen

eighty

two hundred and twenty-five

4-��15

4-��12

two hundred

thirty

fifteen

sixty

twelve

nine hundred and eighty

eight hundred and fifteen

three hundred and seventy-eight

sixteen

eighty

two hundred and twenty-five

4-��15

4-��12

two hundred

thirty

fifteen

60*2

ten

one thousand one hundred and fifty

eight hundred and eighty

four hundred and thirty-two

twenty

one hundred and thirty

two hundred and fifty

4-��15

two hundred and twenty

fifty

twenty

100*2

ten

one thousand one hundred and fifty

eight hundred and eighty

four hundred and thirty-two

twenty

one hundred and thirty

two hundred and fifty

4-��15

two hundred and twenty

fifty

twenty

100*3

ten

CWLB-35KV/(400-3000) A indoor and outdoor aluminum conductor high-voltage wall bushing

[High voltage through wall conduit]CWB-35KV/400-3000A Round copper rod indoor and outdoor high-voltage wall bushing

2026-6-14 10:35:11

CWB-35KV/400-3000A round copper rod indoor and outdoor high-voltage wall bushing model

High voltage through wall conduit (hereinafter referred to as conduit) is suitable for distribution equipment in three-phase AC system power stations and substations with rated voltage (10-35) kV and frequency (15-60) Hz. It is used for conducting parts to pass through partitions, walls or other grounding objects, providing insulation support and fixing connections between external wires (busbars).
Environmental conditions for use
1) Indoor conduit
The ambient temperature is not higher than+40 �� and not lower than -40 ��
Altitude not exceeding 1000m
The monthly average relative humidity should not exceed 90%
The surrounding air should not be significantly polluted by corrosive or flammable gases, water vapor, etc
No frequent and intense vibrations
2) Outdoor casing
The ambient temperature shall not be higher than+40 �� and not lower than -40 ��;
Altitude not exceeding 1000m;
Wind speed not exceeding 34m/s
The air pollution level of the product's usage environment is divided into four levels according to GB/T5582: Level I, II, III, IV, etc;
No frequent and intense vibrations

Product Features
The sleeve is composed of ceramic parts, metal accessories, installation flanges, and conductive bars (rods).

Purpose and Classification
Through wall porcelain conduit is used for power station and substation distribution equipment and high-voltage electrical appliances, to supply wires to pass through grounding partitions, walls or electrical equipment enclosures, and to support conductive parts to insulate them from ground or enclosures.
Through wall porcelain conduit can be divided into indoor and outdoor through wall porcelain conduit according to its usage environment. According to the different conductors passing through its center, it can be divided into busbar through wall porcelain bushing, copper conductor through wall porcelain bushing, and aluminum conductor through wall porcelain bushing.
When copper conductors are directly connected to busbars, electrochemical corrosion is prone to occur, and the high temperature rise at the contact surface can cause the joint to burn out, affecting the service life of the equipment. Therefore, copper aluminum transition joints should be used, but it also brings trouble to on-site construction. The use of aluminum conductor porcelain sleeves can solve the above problems.
Indoor and outdoor through wall porcelain sleeves are assembled from porcelain parts, conductive rods, metal accessories at both ends, and installation flanges. The busbar through wall porcelain sleeve is assembled from porcelain parts, metal accessories at both ends, busbar clamps, and installation flanges (busbar clamps are usually customized by users according to the size of the busbar).
The performance of the through wall porcelain bushing meets the requirements of GB12944.1 "Technical Conditions for High Voltage Through Wall Porcelain Bushings".

Installation and usage instructions
1. The through wall porcelain bushing is suitable for power stations and substations with rated AC voltage below 40.5kV, installation location with ambient temperature of -40 ��~+40 ��, and altitude not exceeding 1000m.
2. Indoor through wall conduit is not suitable for places where it has a destructive effect on the porcelain glaze, metal accessories, and cement adhesive of the conduit or can reduce the electrical performance of the conduit.
3. If partial discharge occurs during the operation of the through wall porcelain bushing, the flange or inner cavity of the porcelain bushing should be checked for local detachment of the sprayed aluminum layer. If so, temporary pressure equalization measures should be taken in a timely manner.
4. The wall holes for installing busbar through wall ceramic sleeves should be drilled according to the maximum size of their flange reinforcement bars.

Appearance and installation dimensions

model	drawing number	Rated voltage KV	Rated current A	5-second short-time current kA not less than	Outdoor nominal creepage distance mm	The power frequency voltage kV shall not be less than				BIL KV peak not less than	Bending failure load kN not less than
model	drawing number	Rated voltage KV	Rated current A	5-second short-time current kA not less than	Outdoor nominal creepage distance mm	Dry tolerance	Moisture tolerance	puncture	Visible corona	BIL KV peak not less than	Bending failure load kN not less than
CWB-35/400	one	thirty-five	four hundred	seven point two	five hundred and ninety-five	one hundred and ten	eighty	one hundred and seventy-six	twenty-five point eight	one hundred and ninety-five	seven point five
CWB-35/600	one	thirty-five	six hundred	twelve	five hundred and ninety-five	one hundred and ten	eighty	one hundred and seventy-six	twenty-five point eight	one hundred and ninety-five	seven point five
CWB-35/1000	two	thirty-five	one thousand	twenty	five hundred and ninety-five	one hundred and ten	eighty	one hundred and seventy-six	twenty-five point eight	one hundred and ninety-five	seven point five
CWB-35/1500	two	thirty-five	one thousand and five hundred	thirty	five hundred and ninety-five	one hundred and ten	eighty	one hundred and seventy-six	twenty-five point eight	one hundred and ninety-five	seven point five
CWWB-35/2000	two	thirty-five	two thousand	forty	eight hundred and ten	one hundred and ten	eighty	one hundred and seventy-six	twenty-five point eight	one hundred and ninety-five	seven point five
CWWB-35/3000	two	thirty-five	three thousand	fifty	eight hundred and ten	one hundred and ten	eighty	one hundred and seventy-six	twenty-five point eight	one hundred and ninety-five	seven point five

nine hundred and seventy

eight hundred and fifteen

three hundred and seventy-two

sixteen

seventy-five

two hundred and twenty-five

4-��15

2-��12

two hundred

thirty

fifteen

forty

three

nine hundred and seventy

eight hundred and fifteen

three hundred and seventy-two

sixteen

seventy-five

two hundred and twenty-five

4-��15

2-��12

two hundred

thirty

fifteen

forty

six

nine hundred and eighty

eight hundred and fifteen

three hundred and seventy-eight

sixteen

eighty

two hundred and twenty-five

4-��15

4-��12

two hundred

thirty

fifteen

sixty

eight

nine hundred and eighty

eight hundred and fifteen

three hundred and seventy-eight

sixteen

eighty

two hundred and twenty-five

4-��15

4-��12

two hundred

thirty

fifteen

60*2

eight

one thousand one hundred and fifty

eight hundred and eighty

four hundred and thirty-two

twenty

one hundred and thirty

two hundred and fifty

4-��15

two hundred and twenty

fifty

twenty

100*2

eight

one thousand one hundred and fifty

eight hundred and eighty

four hundred and thirty-two

twenty

one hundred and thirty

two hundred and fifty

4-��15

two hundred and twenty

fifty

twenty

100*3

eight

CWB-35KV/400-3000A round copper rod indoor and outdoor high-voltage wall bushing

[High voltage through wall conduit]CWWL-10KV/2000-4000A High voltage wall conduit for indoor and outdoor aluminum conductors

2026-6-14 10:12:20

model	Rated voltage kV	Rated current A	5-second short-time current kA not less than	Outdoor nominal creepage distance mm	The power frequency voltage kV shall not be less than				BIL kV peak not less than	Bending failure load kN not less than
model	Rated voltage kV	Rated current A	5-second short-time current kA not less than	Outdoor nominal creepage distance mm	Dry tolerance	Moisture tolerance	puncture	Visible corona	BIL kV peak not less than	Bending failure load kN not less than
CWWL-10/2000	ten	two thousand	forty	two hundred and thirty	forty-seven	thirty	seventy-five	-	eighty	eight
CWWL-10/3150	ten	three thousand one hundred and fifty	sixty	two hundred and thirty	forty-seven	thirty	seventy-five	-	eighty	eight
CWWL-10/4000	ten	four thousand	eighty	two hundred and sixty	forty-seven	thirty	seventy-five	-	eighty	sixteen

��

six hundred

three hundred and sixty-five

one hundred and fifty-eight

fourteen

one hundred and fifteen

two hundred

4-��14

4-��18

two hundred

fifty

twenty-five

one hundred

10*2

ten

six hundred

three hundred and sixty-five

one hundred and fifty-eight

fourteen

one hundred and fifteen

two hundred

4-��14

4-��18

two hundred

fifty

twenty-five

one hundred

10*3

10~12

six hundred and twenty

three hundred and sixty-five

one hundred and sixty-five

eighteen

one hundred and twenty-five

two hundred

4-��14

4-��18

two hundred

sixty

twenty-five

one hundred and twenty

10*3

10~12

CWWL-10KV/2000-4000A indoor and outdoor aluminum conductor high-voltage wall bushing

[High voltage through wall conduit]CMD Busbar type wall conduit

2026-6-14 10:09:05

CMD busbar type wall conduit

L	L1	L2	L3	B	d	d1	d2	a1	a2
four hundred and eighty	two hundred	sixteen	fifty-five	two hundred and twenty	ninety	4-Diameter 18	4-M10	two hundred	one hundred and fifteen
five hundred and five	two hundred and ten	eighteen	sixty-five	two hundred and eighty	one hundred and sixty	4-Diameter 18	4-M10	two hundred and sixty	one hundred and eighty-five
seven hundred and twenty	three hundred and twenty	eighteen	sixty-five	three hundred and thirty-five	one hundred and eighty	4-Diameter 18	4-M8	three hundred	two hundred and fifteen
seven hundred and twenty	three hundred and twenty	twenty	sixty-five	four hundred and twenty-five	two hundred and seventy	4-Diameter 18	4-M8	three hundred and sixty	three hundred
seven hundred and twenty	three hundred and twenty	twenty	sixty-five	four hundred and ninety	three hundred and thirty	4-Diameter 22	4-M8	four hundred and ten	three hundred and sixty

CMD busbar type wall conduit

[High voltage through wall conduit]CC-10 High voltage wall bushing

2026-6-14 10:08:57

Product Model

drawing number

Rated voltage kV

Rated current A

Main dimensions mm

Installation location

CC-10/1000

three

ten

one thousand

one hundred and forty-five

six hundred and fifty-five

five hundred and ten

two hundred and fifty

twelve

fifteen

M30

one hundred and fifty

Indoor

CC-10/1500

three

ten

one thousand and five hundred

one hundred and forty-five

six hundred and fifty-five

five hundred and ten

two hundred and fifty

twelve

fifteen

M39

one hundred and fifty

Indoor

CC-10/2000

three

ten

two thousand

one hundred and forty-five

six hundred and seventy-five

five hundred and ten

two hundred and fifty

twelve

fifteen

M45

one hundred and fifty

Indoor

CC-10 High Voltage Wall Penetrating Conduit

[High voltage through wall conduit]BRW,BRLW-35kv type high current aluminum conductor oil paper capacitor transformer bushing

2026-6-14 9:53:05

Product number

Model number

Chief of Staff

Upper porcelain sleeve

Install flange

Total length of oil immersion section

Maximum outer diameter in oil

Lower porcelain sleeve length

Conductor diameter

weight
kg

Effective insulation distance

Surface creepage distance

Calculate creepage distance

umbrella

Maximum umbrella diameter

Outer diameter of flange

Installation center distance

number of holes

aperture

Grounding length in oil

three hundred and fifty-three thousand and one

BRLW-35/16000-3

one thousand three hundred and sixty

four hundred

one thousand and fifteen

twenty-five

Ordinary umbrella

four hundred and fifty

five hundred and twenty

four hundred and fifty

eight

twenty

two hundred and eighty-five

six hundred and eighty-five

three hundred and sixty

one hundred and fifty

two hundred and forty-five

three hundred and fifty

353003D

BRLW-35/10000-3

one thousand four hundred and eighty

four hundred

one thousand and sixty

twenty-five

Umbrella size

one hundred and five

four hundred

three hundred and fifty

eight

twenty

four hundred

eight hundred

two hundred and seventy

one hundred and fifty

one hundred and seventy

one hundred and ninety-five

353004D

BRLW-35/10000-3

one thousand seven hundred and thirty

four hundred

one thousand and sixty

twenty-five

Umbrella size

one hundred and five

four hundred

three hundred and fifty

eight

twenty

four hundred

eight hundred

two hundred and seventy

one hundred and fifty

one hundred and seventy

two hundred and thirty

three hundred and fifty-three thousand and six

BRLW-35/16000-3

one thousand three hundred and sixty

four hundred

one thousand and fifteen

twenty-five

Ordinary umbrella

four hundred and fifty

five hundred and twenty

four hundred and fifty

eight

twenty

two hundred and eighty-five

six hundred and eighty-five

three hundred and sixty

one hundred and fifty

two hundred and forty-five

three hundred and fifty

353007D

BRLW-35/5000-3

one thousand four hundred and five

four hundred

one thousand and thirteen

twenty-five

Umbrella size

three hundred and fifty

three hundred and sixty

three hundred and twenty-five

eight

twenty

four hundred

seven hundred and sixty-five

two hundred and twenty

one hundred and fifty-five

one hundred and twenty

one hundred and seventy

353008D

BRW-35/10000-2

nine hundred and eighty

three hundred

eight hundred and ten

twenty

Umbrella size

three hundred and ninety

four hundred

three hundred and fifty

eight

twenty

thirty

four hundred and eighteen

two hundred and sixty-five

one hundred and fifty-five

one hundred and seventy

one hundred and twenty

353009D

BRW-35/10000-2

nine hundred and eighty-five

three hundred

eight hundred and ten

twenty

Umbrella size

three hundred and ninety

four hundred

three hundred and fifty

eight

twenty

thirty

four hundred and eighteen

two hundred and sixty-five

one hundred and fifty-five

one hundred and seventy

one hundred and twenty

three hundred and fifty-three thousand and ten

BRW-35/16000-3

one thousand and ninety-five

four hundred

one thousand and fifteen

twenty-five

Ordinary umbrella

four hundred and fifty

five hundred and twenty

four hundred and fifty

eight

twenty

thirty

four hundred and twenty

three hundred and sixty

one hundred and fifty

two hundred and forty-five

two hundred and fifty-five

three hundred and fifty-three thousand five hundred and twenty-eight

BRW-35/16000-3

one thousand one hundred and ten

four hundred

one thousand and fifteen

twenty-five

Ordinary umbrella

four hundred and fifty

five hundred

four hundred and fifty

twelve

twenty

four hundred and twenty

three hundred and sixty

one hundred and fifty

two hundred and forty-five

two hundred and thirty-five

three hundred and fifty-three thousand five hundred and twenty-nine

BRW-35/25000-3

one thousand four hundred and five

four hundred

one thousand and fifteen

twenty-five

Ordinary umbrella

six hundred and ninety

seven hundred and fifty

seven hundred and ten

twelve

twenty

one hundred and ten

six hundred and seventy

six hundred

one hundred and fifty

four hundred and thirty-five

six hundred and seventy-five

BRW, BRLW-35kv high current aluminum conductor oil paper capacitor transformer bushing

[High voltage through wall conduit]BRW,BRLW,BRDW,BRDLW/63-72.5kv Oil paper capacitor transformer bushing

2026-6-14 9:52:57

BRW, BRLW, BRDW, BRDLW/63-72.5kV oil paper capacitor transformer bushing

Model number	rated voltage ��kv��	rated current ��A��	length ��mm��	cable introduce length ��mm��	minimum nominal creepage distance ��mm��	weight ��kg��	remark
BRLW-63/1250-3	sixty-three	one thousand two hundred and fifty	two thousand four hundred and sixty	two thousand and fifty	one thousand seven hundred and twenty-five	one hundred and fifty-five
BRDW-72.5/630-4	seventy-two point five	six hundred and thirty	one thousand nine hundred and ten	one thousand four hundred and seventy-five	two thousand two hundred and forty-eight	one hundred and twenty-five	Clamp wiring
BRDLW-72.5/630-4	seventy-two point five	six hundred and thirty	two thousand one hundred and ten	one thousand and seven hundred	two thousand two hundred and forty-eight	one hundred and thirty-two
BRW-63/630-2	sixty-three	six hundred and thirty	one thousand nine hundred and thirty	one thousand six hundred and eighty	one thousand three hundred and eighty	one hundred
BRW-72.5/630-3	seventy-two point five	six hundred and thirty	one thousand nine hundred and thirty	one thousand six hundred and eighty	one thousand eight hundred and thirteen	one hundred and five
BRDLW-72.5/630-4	seventy-two point five	six hundred and thirty	two thousand one hundred and seventy	one thousand seven hundred and thirty-five	two thousand two hundred and forty-eight	one hundred and thirty-five	Clamp wiring
BRDLW-63/1250-4	sixty-three	one thousand two hundred and fifty	two thousand four hundred and eighty-five	two thousand and sixty	two thousand one hundred and forty	one hundred and eighty-five
BRLW-63/2000-3	sixty-three	two thousand	two thousand five hundred and forty-five	two thousand and eighty-five	one thousand seven hundred and twenty-five	two hundred and fifty
BRLW-63/630-2	sixty-three	six hundred and thirty	two thousand one hundred and fifteen	one thousand eight hundred and sixty	one thousand three hundred and eighty	one hundred and ten
BRLW-72.5/630-3	seventy-two point five	six hundred and thirty	two thousand one hundred and forty-five	one thousand eight hundred and ninety	one thousand eight hundred and thirteen	one hundred and fifteen
BRLW-63/1250-3	sixty-three	one thousand two hundred and fifty	two thousand four hundred and forty	two thousand and fifty	one thousand seven hundred and twenty-five	one hundred and sixty	Ceramic sleeve card installation
BRLW-72.5/2500-3	seventy-two point five	two thousand and five hundred	two thousand six hundred and ten	-	one thousand eight hundred and thirteen	one hundred and seventy-five	Catheter current carrying capacity
BRLW-63/630-3	sixty-three	six hundred and thirty	two thousand one hundred and fifteen	one thousand eight hundred and sixty	one thousand seven hundred and twenty-five	one hundred and fifteen
BRLW-63/1250-4	sixty-three	one thousand two hundred and fifty	two thousand and six hundred	two thousand and two hundred	two thousand one hundred and forty	one hundred and seventy-five
BRDLW-72.5/630-4	seventy-two point five	six hundred and thirty	two thousand one hundred and ten	one thousand and seven hundred	two thousand two hundred and forty-eight	one hundred and thirty-five
BRLW-72.5/2500-4	seventy-two point five	two thousand and five hundred	two thousand four hundred and ninety-five	-	two thousand two hundred and forty-eight	one hundred and seventy	Catheter current carrying capacity
BRW-63/630-2	sixty-three	six hundred and thirty	one thousand nine hundred and thirty	one thousand six hundred and eighty	one thousand three hundred and eighty	one hundred

BRW, BRLW, BRDW, BRDLW/63-72.5kV oil paper capacitor transformer bushing

[High voltage through wall conduit]KYN61-40.5/ �� 260 �� 395 Wall penetrating conduit

2026-6-14 9:51:42

KYN61-40.5/�� 260 × 395 through wall conduit

[High voltage through wall conduit]CWWB-35 series through wall porcelain conduit

2026-6-13 21:19:33

The CWWB-35 series through wall porcelain bushing (hereinafter referred to as bushing) is suitable for distribution equipment in three-phase AC system power stations and substations with rated voltage (10-35) kV and frequency (15-60) Hz. It is used for conductive parts to pass through partitions, walls or other grounding objects, providing insulation support and fixing connections between external conductors (busbars).

Environmental conditions for the use of CWWB-35 series through wall ceramic conduit
1) Indoor conduit
The ambient temperature is not higher than+40 �� and not lower than -40 ��
Altitude not exceeding 1000m
The monthly average relative humidity should not exceed 90%
The surrounding air should not be significantly polluted by corrosive or flammable gases, water vapor, etc
No frequent and intense vibrations
2) Outdoor casing
The ambient temperature shall not be higher than+40 �� and not lower than -40 ��;
Altitude not exceeding 1000m;
Wind speed not exceeding 34m/s
The air pollution level of the product's usage environment is divided into four levels according to GB/T5582: Level I, II, III, IV, etc;
No frequent and intense vibrations

Characteristics of CWWB-35 series through wall ceramic conduit products
The sleeve is composed of ceramic parts, metal accessories, installation flanges, and conductive bars (rods).

Application and classification of CWWB-35 series through wall ceramic conduit
Through wall porcelain conduit is used for power station and substation distribution equipment and high-voltage electrical appliances, to supply wires to pass through grounding partitions, walls or electrical equipment enclosures, and to support conductive parts to insulate them from ground or enclosures.
Through wall porcelain conduit can be divided into indoor and outdoor through wall porcelain conduit according to its usage environment. According to the different conductors passing through its center, it can be divided into busbar through wall porcelain bushing, copper conductor through wall porcelain bushing, and aluminum conductor through wall porcelain bushing.
When copper conductors are directly connected to busbars, electrochemical corrosion is prone to occur, and the high temperature rise at the contact surface can cause the joint to burn out, affecting the service life of the equipment. Therefore, copper aluminum transition joints should be used, but it also brings trouble to on-site construction. The use of aluminum conductor porcelain sleeves can solve the above problems.
Indoor and outdoor through wall porcelain sleeves are assembled from porcelain parts, conductive rods, metal accessories at both ends, and installation flanges. The busbar through wall porcelain sleeve is assembled from porcelain parts, metal accessories at both ends, busbar clamps, and installation flanges (busbar clamps are usually customized by users according to the size of the busbar).
The performance of the through wall porcelain bushing meets the requirements of GB12944.1 "Technical Conditions for High Voltage Through Wall Porcelain Bushings".

Model Description of CWWB-35 Series Through Wall Ceramic Sleeve

Installation and usage instructions
1. The through wall porcelain bushing is suitable for power stations and substations with rated AC voltage below 40.5kV, installation location with ambient temperature of -40 ��~+40 ��, and altitude not exceeding 1000m.
2. Indoor through wall conduit is not suitable for places where it has a destructive effect on the porcelain glaze, metal accessories, and cement adhesive of the conduit or can reduce the electrical performance of the conduit.
3. If partial discharge occurs during the operation of the through wall porcelain bushing, the flange or inner cavity of the porcelain bushing should be checked for local detachment of the sprayed aluminum layer. If so, temporary pressure equalization measures should be taken in a timely manner.
4. The wall holes for installing busbar through wall ceramic sleeves should be drilled according to the maximum size of their flange reinforcement bars.

Appearance and installation dimensions

model	Rated voltage KV	Rated current A	5-second short-time current kA not less than	Outdoor nominal creepage distance mm	The power frequency voltage kV shall not be less than				BIL KV peak not less than	Bending failure load kN not less than
model	Rated voltage KV	Rated current A	5-second short-time current kA not less than	Outdoor nominal creepage distance mm	Dry tolerance	Moisture tolerance	puncture	Visible corona	BIL KV peak not less than	Bending failure load kN not less than
CWB-35/400	thirty-five	four hundred	seven point two	five hundred and ninety-five	one hundred and ten	eighty	one hundred and seventy-six	twenty-five point eight	one hundred and ninety-five	seven point five
CWB-35/600	thirty-five	six hundred	twelve	five hundred and ninety-five	one hundred and ten	eighty	one hundred and seventy-six	twenty-five point eight	one hundred and ninety-five	seven point five
CWB-35/1000	thirty-five	one thousand	twenty	five hundred and ninety-five	one hundred and ten	eighty	one hundred and seventy-six	twenty-five point eight	one hundred and ninety-five	seven point five
CWB-35/1500	thirty-five	one thousand and five hundred	thirty	five hundred and ninety-five	one hundred and ten	eighty	one hundred and seventy-six	twenty-five point eight	one hundred and ninety-five	seven point five
CWWB-35/2000	thirty-five	two thousand	forty	eight hundred and ten	one hundred and ten	eighty	one hundred and seventy-six	twenty-five point eight	one hundred and ninety-five

L	L1	L2	L3	L4	B	d1	d2	a1
nine hundred and twenty	eight hundred and fifteen	three hundred and seventy-two	sixteen	fifty	two hundred and twenty-five	4-��15	M14*1.5	two hundred
nine hundred and twenty	eight hundred and fifteen	three hundred and seventy-two	sixteen	fifty	two hundred and twenty-five	4-��15	M20*1.5	two hundred
nine hundred and forty	eight hundred and fifteen	three hundred and seventy-eight	sixteen	fifty	two hundred and twenty-five	4-��15	M30*2	two hundred
nine hundred and forty	eight hundred and fifteen	three hundred and seventy-eight	sixteen	sixty	two hundred and twenty-five	4-��15	M39*3	two hundred
nine hundred and fifty-five	eight hundred and fifteen	four hundred and thirty-three	twenty	seventy	two hundred and fifty	4-��15	M45*3	two hundred

CWWB-35 series through wall ceramic sleeve

[High voltage through wall conduit]CWB-10/1000A type wall conduit

2026-6-13 19:34:37

CWB-10/1000A type through wall conduit

[High voltage through wall conduit]CWB-10/630A Wall penetrating conduit

2026-6-13 19:34:28

CWB-10/630A wall conduit

[High voltage through wall conduit]CWC-10/2000A type wall conduit

2026-6-13 19:34:19

CWC-10/2000A type through wall conduit

[High voltage through wall conduit]CWC-20/2000A type wall conduit

2026-6-13 19:34:09

CWC-20/2000A type through wall conduit

[High voltage through wall conduit]CWB-35/630A type wall conduit

2026-6-13 19:34:00

CWB-35/630A type through wall conduit

[High voltage through wall conduit]CMWW-20-180 type wall conduit

2026-6-13 19:33:43

CMWW-20-180 type through wall conduit

[High voltage through wall conduit]CMWW-20-330 type wall conduit

2026-6-13 19:33:34

CMWW-20-330 type through wall conduit

[High voltage through wall conduit]CWB-10/2000A Type Round Copper Rod Outdoor High Voltage Wall Penetrating Sleeve

2026-6-13 19:30:56

model	Rated voltage KV	Rated current A	The power frequency voltage kV shall not be less than			BIL kv peak not less than	Bending failure load kN not less than	5-second short-time current kA not less than
			Dry tolerance	Moisture tolerance	puncture
CWB -10/2000	ten	two thousand	forty-seven	-	seventy-five	eighty	seven point five	forty

CWB-10/2000A type through wall conduit

[High voltage through wall conduit]CB-10/200A type wall conduit

2026-6-13 19:30:47

CB-10/200A type wall conduit

CB-10/200A type wall conduit

[High voltage through wall conduit]CWWC-20/1000A type wall conduit

2026-6-13 19:30:38

CWWC-20/1000A type wall conduit

[High voltage through wall conduit]FCGW-10/200~630 type composite dry-type wall conduit

2026-6-13 19:05:11

Product Model	rated voltage (kV)	rated current (A)	Lightning impulse resistance Voltage peak value (kV)	power frequency withstand voltage Effective pressure value (kV)	Bending and breaking Bad load (N)	Allow bending Curved load (N)
FCGW-10/200��630	ten	200~630	seventy-five	thirty	one thousand two hundred and fifty	six hundred and twenty-five

FCGW-10/200-630 composite dry-type wall penetrating sleeve

[High voltage through wall conduit]FCGW-40.5/630~3150 type composite dry-type wall conduit

2026-6-13 19:05:02

Product Model	rated voltage (kV)	rated current (A)	Lightning impulse resistance Voltage peak value (kV)	power frequency withstand voltage Effective pressure value (kV)	Bending and breaking Bad load (N)	Allow bending Curved load (N)
FCGW-40.5/630��3150	thirty-five	630~3150	two hundred	eighty	one thousand two hundred and fifty	six hundred and twenty-five

FCGW-40.5/630-3150 composite dry-type wall penetrating sleeve

[High voltage through wall conduit]FCGW-66/630~1600 type composite dry-type wall conduit

2026-6-13 19:04:54

Product Model	rated voltage (kV)	rated current (A)	Lightning impulse resistance Voltage peak value (kV)	power frequency withstand voltage Effective pressure value (kV)	Bending and breaking Bad load (N)	Allow bending Curved load (N)
FCGW-66/630��1600	sixty-six	630~1600	three hundred and twenty-five	one hundred and forty-seven	one thousand two hundred and fifty	six hundred and twenty-five

FCGW-66/630-1600 composite dry-type wall penetrating sleeve

[High voltage through wall conduit]FCGW-110/630~1600 type composite dry-type wall conduit

2026-6-13 19:04:45

Product Model	rated voltage (kV)	rated current (A)	Lightning impulse resistance Voltage peak value (kV)	power frequency withstand voltage Effective pressure value (kV)	Bending and breaking Bad load (N)	Allow bending Curved load (N)
FCGW-110/630��1600	one hundred and ten	630~1600	five hundred and fifty	two hundred and thirty	one thousand two hundred and fifty	six hundred and twenty-five

FCGW-110/630-1600 composite dry-type wall penetrating sleeve

[High voltage through wall conduit]FCGW-20/1000~4000 type composite dry-type wall penetrating conduit

2026-6-13 19:04:36

Product Model	rated voltage (kV)	rated current (A)	Lightning impulse resistance Voltage peak value (kV)	power frequency withstand voltage Effective pressure value (kV)	Bending and breaking Bad load (N)	Allow bending Curved load (N)
FCGW-20/1000~4000	twenty	1000~4000	one hundred and twenty-five	fifty	one thousand two hundred and fifty	six hundred and twenty-five

FCGW-20/1000~4000 composite dry-type wall penetrating sleeve

[High voltage through wall conduit]CM,CMWW series busbar type wall bushing

2026-6-13 19:01:35

CM, CMWW series busbar type wall bushing (hereinafter referred to as bushing) is suitable for distribution equipment in three-phase AC system power stations and substations with rated voltage (10-35) kV and frequency (15-60) Hz. It is used for conductive parts to pass through partitions, walls or other grounding objects, providing insulation support and fixing connections between external wires (busbars)

Product model and meaning
CL - Indoor aluminum conductor wall conduit
CW - Outdoor and Indoor Copper Conductor Wall Conduit
CWL - Outdoor and Indoor Aluminum Conductor Wall Conduit
CWWL - Anti pollution outdoor and indoor aluminum conductor wall conduit
C - Indoor copper conductor through wall conduit
CM - Indoor busbar type wall conduit
CMW - Outdoor and Indoor Busbar Wall Conduit
CMWW - Pollution resistant outdoor one indoor busbar wall conduit
For conductor sleeves, the fraction after short horizontal alignment; Molecular rated voltage in kilovolts for the sleeve; The denominator is the rated current amperage of the casing, and the second short horizontal digit is the pollution level number
For busbar type conduit, the first short horizontal digit after the letter represents the rated voltage in kilovolts; The second short horizontal digit is the diameter in millimeters of the inner hole of the ceramic sleeve; The third short horizontal digit is the pollution level number

Product manufacturing basis
GB77O Outdoor wall conduit for power stations with 35 kV and below
GB771 Indoor wall conduit for power stations with 35 kV and below
GB12944 Technical Conditions for High Voltage Through Wall Ceramic Bushings

Environmental conditions for the use of CM and CMWW series busbar type wall bushings
1) Indoor conduit
The ambient temperature is not higher than+40 �� and not lower than -40 ��
Altitude not exceeding 1000m
The monthly average relative humidity should not exceed 90%
The surrounding air should not be significantly polluted by corrosive or flammable gases, water vapor, etc
No frequent and intense vibrations
2) Outdoor casing
The ambient temperature shall not be higher than+40 �� and not lower than -40 ��;
Altitude not exceeding 1000m;
Wind speed not exceeding 34m/s
The air pollution level of the product's usage environment is classified into four levels according to GB5582: 0, I, II, III, etc;
No frequent and intense vibrations

Product Features
The sleeve is composed of ceramic parts, metal accessories, installation flanges, and conductive bars (rods).

Installation and usage precautions
The casing should be used under specified environmental conditions. Before installation, the casing model and specifications should be determined.
Before installation, all parts of the sleeve must be wiped clean, especially the ceramic parts and conductive contact parts

Ordering Instructions
It should indicate: casing model, rated voltage, rated current, and quantity, etc.

CM, CMWW series busbar type wall bushing

[High voltage through wall conduit]C,CW,CWW series copper conductor wall bushing

2026-6-13 19:01:26

High voltage through wall conduit (hereinafter referred to as conduit) is suitable for distribution equipment in three-phase AC system power stations and substations with rated voltage (10-35) kV and frequency (15-60) Hz. It is used for conducting parts to pass through partitions, walls or other grounding objects, providing insulation support and fixing connections between external wires (busbars)

Product model and meaning
CL - Indoor aluminum conductor wall conduit
CW - Outdoor and Indoor Copper Conductor Wall Conduit
CWL - Outdoor and Indoor Aluminum Conductor Wall Conduit
CWWL - Anti pollution outdoor and indoor aluminum conductor wall conduit
C - Indoor copper conductor through wall conduit
CM - Indoor busbar type wall conduit
CMW - Outdoor and Indoor Busbar Wall Conduit
CMWW - Pollution resistant outdoor one indoor busbar wall conduit
For conductor sleeves, the fraction after short horizontal alignment; Molecular rated voltage in kilovolts for the sleeve; The denominator is the rated current amperage of the casing, and the second short horizontal digit is the pollution level number
For busbar type conduit, the first short horizontal digit after the letter represents the rated voltage in kilovolts; The second short horizontal digit is the diameter in millimeters of the inner hole of the ceramic sleeve; The third short horizontal digit is the pollution level number

Product manufacturing basis
GB77O Outdoor wall conduit for power stations with 35 kV and below
GB771 Indoor wall conduit for power stations with 35 kV and below
GB12944 Technical Conditions for High Voltage Through Wall Ceramic Bushings

Environmental conditions for use
1) Indoor conduit
The ambient temperature is not higher than+40 �� and not lower than -40 ��
Altitude not exceeding 1000m
The monthly average relative humidity should not exceed 90%
The surrounding air should not be significantly polluted by corrosive or flammable gases, water vapor, etc
No frequent and intense vibrations
2) Outdoor casing
The ambient temperature shall not be higher than+40 �� and not lower than -40 ��;
Altitude not exceeding 1000m;
Wind speed not exceeding 34m/s
The air pollution level of the product's usage environment is classified into four levels according to GB5582: 0, I, II, III, etc;
No frequent and intense vibrations

Product Features
The sleeve is composed of ceramic parts, metal accessories, installation flanges, and conductive bars (rods).

Installation and usage precautions
The casing should be used under specified environmental conditions. Before installation, the casing model and specifications should be determined.
Before installation, all parts of the sleeve must be wiped clean, especially the ceramic parts and conductive contact parts

C. CW, CWW series copper conductor wall bushing ordering instructions
It should indicate: casing model, rated voltage, rated current, and quantity, etc.

C. CW, CWW series copper conductor wall bushing

[High voltage through wall conduit]CL,CWL,CWWL series aluminum conductor wall bushing

2026-6-13 19:01:18

The CL, CWL, CWWL series aluminum conductor wall bushings (hereinafter referred to as bushings) are suitable for use in three-phase AC system power stations and substations with rated voltage (10-35) kV and frequency (15-60) Hz distribution equipment. They are used for the conductive parts to pass through partitions, walls, or other grounding objects, providing insulation support and fixing connections between external wires (busbars)

CL, CWL, CWWL series aluminum conductor wall bushing models and meanings
CL - Indoor aluminum conductor wall conduit
CW - Outdoor and Indoor Copper Conductor Wall Conduit
CWL - Outdoor and Indoor Aluminum Conductor Wall Conduit
CWWL - Anti pollution outdoor and indoor aluminum conductor wall conduit
C - Indoor copper conductor through wall conduit
CM - Indoor busbar type wall conduit
CMW - Outdoor and Indoor Busbar Wall Conduit
CMWW - Pollution resistant outdoor one indoor busbar wall conduit
For conductor sleeves, the fraction after short horizontal alignment; Molecular rated voltage in kilovolts for the sleeve; The denominator is the rated current amperage of the casing, and the second short horizontal digit is the pollution level number
For busbar type conduit, the first short horizontal digit after the letter represents the rated voltage in kilovolts; The second short horizontal digit is the diameter in millimeters of the inner hole of the ceramic sleeve; The third short horizontal digit is the pollution level number

Product manufacturing basis
GB77O Outdoor wall conduit for power stations with 35 kV and below
GB771 Indoor wall conduit for power stations with 35 kV and below
GB12944 Technical Conditions for High Voltage Through Wall Ceramic Bushings

Environmental conditions for use
1) Indoor conduit
The ambient temperature is not higher than+40 �� and not lower than -40 ��
Altitude not exceeding 1000m
The monthly average relative humidity should not exceed 90%
The surrounding air should not be significantly polluted by corrosive or flammable gases, water vapor, etc
No frequent and intense vibrations
2) Outdoor casing
The ambient temperature shall not be higher than+40 �� and not lower than -40 ��;
Altitude not exceeding 1000m;
Wind speed not exceeding 34m/s
The air pollution level of the product's usage environment is classified into four levels according to GB5582: 0, I, II, III, etc;
No frequent and intense vibrations

Product Features
The sleeve is composed of ceramic parts, metal accessories, installation flanges, and conductive bars (rods).

Installation and usage precautions
The casing should be used under specified environmental conditions. Before installation, the casing model and specifications should be determined.
Before installation, all parts of the sleeve must be wiped clean, especially the ceramic parts and conductive contact parts

Ordering Instructions
It should indicate: casing model, rated voltage, rated current, and quantity, etc.

CL, CWL, CWWL series aluminum conductor through wall sleeves

[High voltage through wall conduit]CB,CC series indoor copper conductor wall bushing

2026-6-13 19:01:09

CB, CC series indoor copper conductor wall bushing (hereinafter referred to as bushing) is suitable for distribution equipment in three-phase AC system power stations and substations with rated voltage (10-35) kV and frequency (15-60) Hz. It is used for the conductive parts to pass through partitions, walls or other grounding objects, providing insulation support and fixing connections between external wires (busbars)

CB, CC series indoor copper conductor wall bushing models and meanings
CL - Indoor aluminum conductor wall conduit
CW - Outdoor and Indoor Copper Conductor Wall Conduit
CWL - Outdoor and Indoor Aluminum Conductor Wall Conduit
CWWL - Anti pollution outdoor and indoor aluminum conductor wall conduit
C - Indoor copper conductor through wall conduit
CM - Indoor busbar type wall conduit
CMW - Outdoor and Indoor Busbar Wall Conduit
CMWW - Pollution resistant outdoor one indoor busbar wall conduit
For conductor sleeves, the fraction after short horizontal alignment; Molecular rated voltage in kilovolts for the sleeve; The denominator is the rated current amperage of the casing, and the second short horizontal digit is the pollution level number
For busbar type conduit, the first short horizontal digit after the letter represents the rated voltage in kilovolts; The second short horizontal digit is the diameter in millimeters of the inner hole of the ceramic sleeve; The third short horizontal digit is the pollution level number

Product manufacturing basis
GB77O Outdoor wall conduit for power stations with 35 kV and below
GB771 Indoor wall conduit for power stations with 35 kV and below
GB12944 Technical Conditions for High Voltage Through Wall Ceramic Bushings

Environmental conditions for use
1) Indoor conduit
The ambient temperature is not higher than+40 �� and not lower than -40 ��
Altitude not exceeding 1000m
The monthly average relative humidity should not exceed 90%
The surrounding air should not be significantly polluted by corrosive or flammable gases, water vapor, etc
No frequent and intense vibrations
2) Outdoor casing
The ambient temperature shall not be higher than+40 �� and not lower than -40 ��;
Altitude not exceeding 1000m;
Wind speed not exceeding 34m/s
The air pollution level of the product's usage environment is classified into four levels according to GB5582: 0, I, II, III, etc;
No frequent and intense vibrations

Characteristics of CB and CC series indoor copper conductor through wall conduit
The sleeve is composed of ceramic parts, metal accessories, installation flanges, and conductive bars (rods).

Installation and usage precautions
The casing should be used under specified environmental conditions. Before installation, the casing model and specifications should be determined.
Before installation, all parts of the sleeve must be wiped clean, especially the ceramic parts and conductive contact parts

Ordering Notice
It should indicate: casing model, rated voltage, rated current, and quantity, etc.

CB, CC series indoor copper conductor through wall conduit

[High voltage through wall conduit]CWL-20/630-4000A High voltage wall conduit for indoor and outdoor aluminum conductors

2026-6-13 19:01:00

CWL-20/630-4000A indoor and outdoor aluminum conductor high-voltage wall bushing

[High voltage through wall conduit]FCGW series composite wall conduit

2026-6-13 18:39:52

FCGW series composite through wall conduit

[High voltage through wall conduit]CMW-12 Outdoor busbar through wall ceramic conduit

2026-6-13 18:31:03

model

Factory code

rated
Voltage KV

rated
Current A

bend
Load KN

drawing number

weight
Kg

l_one

l_two

d_one

a_one

inner diameter

Ningdian
distance

CMW-12-180

two thousand four hundred and fifty-three

twenty-four

four thousand

twenty

14-I

eight hundred and five

three hundred and ninety-three

eighteen

three hundred and ten

twenty-two

three hundred and thirty

eleven

four hundred and ten

one hundred and eighty

four hundred and fifty

fifteen point five

CMW-12-330

two thousand four hundred and fifty-six

twenty-four

eight thousand

forty

14-II

eight hundred and five

three hundred and eighty-three

twenty-two

four hundred and sixty

twenty-six

four hundred and eighty

three hundred and seventy

five hundred and seventy

three hundred and thirty

four hundred and fifty

seventeen point three

CMW-12-142

two thousand four hundred and seventy-five

forty point five

six thousand

forty

fifteen

nine hundred and forty-two

four hundred and sixteen

twenty-two

five hundred

twenty-six

four hundred and eighty

three hundred and seventy

five hundred and seventy

three hundred and twenty

six hundred

twenty-one point one

CMWW-12-160

twenty-five thousand three hundred and one

twenty-four

ten thousand

thirty

sixteen

seven hundred and twenty

three hundred and twenty

twenty

four hundred and sixty

twenty-two

four hundred and fifty

three hundred and sixty

five hundred and thirty

three hundred and thirty

five hundred

nineteen

CMW-12 outdoor busbar through wall ceramic sleeve

[High voltage through wall conduit]CM-12 series indoor busbar through wall ceramic conduit

2026-6-13 18:30:54

CM-12 series indoor busbar through wall ceramic conduit

model

Factory code

rated
Voltage KV

bend
Load KN

drawing number

weight
Kg

inner diameter

CM-12-86

two thousand five hundred and twenty-five

twelve

twenty

13-I

four hundred and eighty

two hundred and two

nineteen

two hundred

sixty

eighty

one hundred and fifty-five

seventeen

one hundred and twenty-two

forty-six

eleven

two hundred and forty

eighty-six

fifteen point five

CM-12-105

two thousand five hundred and twenty-six

twelve

twenty-three

four hundred and eighty-four

two hundred and five

nineteen

two hundred and thirty

eighty

one hundred

one hundred and seventy-four

seventeen

one hundred and forty-two

sixty

fifteen

two hundred and seventy

one hundred and five

seventeen point three

CM-12-142

two thousand five hundred and twenty-seven

twelve

thirty

13-II

four hundred and eighty-seven

two hundred and six

twenty

two hundred and sixty

one hundred and thirty-six

fifty

one hundred and six

two hundred and five

twenty

one hundred and four

seventy-four

fifteen

three hundred and five

one hundred and forty-two

twenty-one point one

CM-12-160

two thousand five hundred and thirty-two

twelve

eight

four hundred and eighty-eight

two hundred and five

twenty

two hundred and sixty

one hundred and sixty

eighty

one hundred and twenty-eight

two hundred and five

twenty

one hundred and thirty

one hundred

fifteen

three hundred and five

one hundred and sixty

nineteen point two

CM-12-130

two thousand five hundred and fifty

twenty-four

twenty-three

13-I

seven hundred and twenty

two hundred and fifty-six

twenty

two hundred and sixty

eighty

one hundred

two hundred and twenty-eight

twenty

one hundred and forty-two

sixty

fifteen

three hundred and five

one hundred and thirty

thirty-one point two

inner diameter

CM-12-330

two thousand three hundred and fifty-one

twenty-four

forty

fifteen

seven hundred and eighty-two

three hundred and fifty-one

twenty-two

four hundred and sixty

twenty-six

four hundred and eighty

three hundred and seventy

five hundred and seventy

three hundred and thirty

one hundred and fifty

Note: D, E, and F in the prototype number represent bending loads. Remove D, E, and F from the current model and directly label the bending load.

[High voltage through wall conduit]CWL-10/200-1500A High voltage wall conduit for indoor and outdoor aluminum conductors

2026-6-13 18:30:45

CWL-10/200-1500A indoor and outdoor aluminum conductor high-voltage wall bushing

[High voltage through wall conduit]CWB2 Outdoor copper conductor through wall ceramic conduit

2026-6-13 18:30:36

model

Factory code

Rated voltage kV

Rated current A

drawing number

Main dimensions mm

weight
kg

ltwo

creepage distance

CWB2-7.2/400

two thousand and four hundred

seven point two

four hundred

four

four hundred and seventy

three hundred and seventy-eight

one hundred and seventy-eight

one hundred and eight

M14

one hundred and ninety

eight point six

CWB2-7.2/630

two thousand four hundred and one

seven point two

six hundred and thirty

four hundred and ninety

three hundred and seventy-eight

one hundred and seventy-eight

one hundred and eight

M20

one hundred and ninety

eight point one

CWB2-7.2/1000

two thousand four hundred and two

seven point two

one thousand

five hundred and twenty

three hundred and seventy-eight

one hundred and seventy-eight

one hundred and eight

M30

one hundred and ninety

ten point five

CWB2-7.2/1600

two thousand four hundred and three

seven point two

one thousand and six hundred

five hundred and twenty

three hundred and seventy-eight

one hundred and seventy-eight

one hundred and eight

M39

one hundred and ninety

twelve point seven

CWB2-12/400

two thousand four hundred and twenty-five

twelve

four hundred

five hundred and forty

four hundred and forty-eight

two hundred and twenty-three

one hundred and eight

M14

two hundred and fifty

ten point six

CWB2-12/630

two thousand four hundred and twenty-six

twelve

six hundred and thirty

five hundred and fifty

four hundred and forty-eight

two hundred and twenty-three

one hundred and eight

M20

two hundred and fifty

ten point six

CWB2-12/1000

two thousand four hundred and twenty-seven

twelve

one thousand

five hundred and ninety

four hundred and forty-eight

two hundred and twenty-three

one hundred and eight

M30

two hundred and fifty

twelve point seven

CWB2-12/1600

two thousand four hundred and twenty-eight

twelve

one thousand and six hundred

six hundred

four hundred and forty-eight

two hundred and twenty-three

one hundred and eight

M39

two hundred and fifty

fifteen point five

CWC-12/1000

two thousand four hundred and twenty-nine

twelve

one thousand

five

six hundred and seventy

five hundred and thirty

two hundred and seventy

one hundred and forty

M30

four hundred

nineteen point three

CWC-12/1600

two thousand four hundred and thirty

twelve

one thousand and six hundred

six hundred and seventy

five hundred and thirty

two hundred and seventy

one hundred and forty

M39

four hundred

twenty-two point five

CWC-12/2000

two thousand four hundred and thirty-one

twelve

two thousand

seven hundred

five hundred and thirty

two hundred and seventy

one hundred and forty

M45

four hundred

twenty-five point seven

model

factory
code name

rated
Voltage kV

rated
Current A

drawing number

Main dimensions mm

weight
kg

ltwo

lthree

creepage
distance

CWC-24/2000

two thousand four hundred and fifty

twenty-four

two thousand

six

nine hundred and twenty

seven hundred and forty

three hundred and sixty

fifteen

two hundred and thirty

fifteen

two hundred and twenty

forty

twenty

eighty

eight

two hundred and seventy

five hundred

forty-two

CWC-24/2500

two thousand four hundred and fifty-one

twenty-four

two thousand and five hundred

nine hundred and twenty

seven hundred and forty

three hundred and sixty

fifteen

two hundred and thirty

fifteen

two hundred and twenty

forty

twenty

eighty

ten

two hundred and seventy

five hundred

forty-four

CWC-24/3150

two thousand four hundred and fifty-two

twenty-four

three thousand one hundred and fifty

nine hundred and twenty

seven hundred and forty

three hundred and sixty

fifteen

two hundred and thirty

fifteen

two hundred and twenty

forty

twenty

one hundred

ten

two hundred and seventy

five hundred

forty-six

CWB-12/1000

twenty-four thousand and two hundred

twelve

one thousand

seven

five hundred and thirty

three hundred and eighty

one hundred and eighty

twenty-two

one hundred and fifteen

thirteen

twelve

one hundred and seventy-five

thirty

fifteen

sixty

ten

three hundred

nine point two

CWB2 outdoor copper conductor through wall ceramic sleeve

[High voltage through wall conduit]CA,CB,CC Indoor copper conductor through wall ceramic conduit

2026-6-13 18:30:28

model

Factory code

Rated voltage kV

Rated current A

drawing number

Main dimensions mm

weight
kg

CB-7.2/1000

two thousand three hundred and four

seven point two

one thousand

two

four hundred and thirty-five

three hundred and twenty-three

one hundred and thirty-five

twelve

ninety

M30

one hundred and fifty

six point eight

CB-7.2/1600

two thousand three hundred and five

seven point two

one thousand and six hundred

four hundred and thirty-five

three hundred and twenty-three

one hundred and thirty-five

twelve

ninety

M39

one hundred and fifty

eight point eight

CB-12/1000

two thousand three hundred and twenty-eight

twelve

one thousand

four hundred and eighty

three hundred and sixty-three

one hundred and fifty-seven

ten

one hundred

M30

one hundred and sixty-five

eight

CB-12/1600

two thousand three hundred and twenty-nine

twelve

one thousand and six hundred

four hundred and eighty

three hundred and sixty-three

one hundred and fifty-seven

ten

one hundred

M39

one hundred and sixty-five

ten point five

CC-7.2/1000

two thousand three hundred and six

seven point two

one thousand

three

five hundred and five

three hundred and sixty-four

one hundred and seventy-two

M30

twelve point five

CC-7.2/1600

two thousand three hundred and seven

seven point two

one thousand and six hundred

five hundred and five

three hundred and sixty-four

one hundred and seventy-two

M39

fifteen point five

CC-7.2/2000

two thousand three hundred and eight

seven point two

two thousand

five hundred and twenty-five

three hundred and sixty-four

one hundred and seventy-two

M45

seventeen point five

CC-12/1000

two thousand three hundred and thirty

twelve

one thousand

five hundred and ninety

four hundred and forty-nine

two hundred and seven

M30

sixteen

CC-12/1600

two thousand three hundred and thirty-one

twelve

one thousand and six hundred

five hundred and ninety

four hundred and forty-nine

two hundred and seven

M39

eighteen point five

CC-12/2000

two thousand three hundred and thirty-two

twelve

two thousand

six hundred and ten

four hundred and forty-nine

two hundred and seven

M45

twenty-one point five

model

Factory code

Rated voltage kV

Rated current A

drawing number

Main dimensions mm

weight
kg

CA-7.2/250

two thousand and three hundred

seven point two

two hundred and fifty

one

three hundred and ninety-five

three hundred and five

one hundred and thirty

ten

seventy

eleven

twenty

three

one hundred and thirty-two

three point three

CA-7.2/400

two thousand three hundred and one

seven point two

four hundred

three hundred and ninety-five

three hundred and five

one hundred and thirty

ten

seventy

thirteen

twenty-five

five

one hundred and thirty-two

three point five

CB-7.2/400

two thousand three hundred and two

seven point two

four hundred

four hundred and twenty-five

three hundred and ten

one hundred and thirty-two

twelve

ninety

thirteen

forty

three

one hundred and fifty

four point eight

CB-7.2/630

two thousand three hundred and three

seven point two

six hundred and thirty

four hundred and twenty-five

three hundred and ten

one hundred and thirty-two

twelve

ninety

seventeen

forty

six

one hundred and fifty

four point four

CB-12/250

two thousand three hundred and twenty-five

twelve

two hundred and fifty

four hundred and sixty-five

three hundred and fifty

one hundred and fifty-two

ten

one hundred

eleven

twenty

three

one hundred and sixty-five

six point one

CB-12/400

two thousand three hundred and twenty-six

twelve

four hundred

four hundred and sixty-five

three hundred and fifty

one hundred and fifty-two

ten

one hundred

thirteen

forty

three

one hundred and sixty-five

six point four

CB-12/630

two thousand three hundred and twenty-seven

twelve

six hundred and thirty

four hundred and sixty-five

three hundred and fifty

one hundred and fifty-two

ten

one hundred

seventeen

forty

six

one hundred and sixty-five

six

CA, CB, CC indoor copper conductor through wall ceramic conduit

[High voltage through wall conduit]CM series busbar wall bushing CM CMWW

2026-6-13 18:28:35

generation
number

model

picture
number

Main dimensions mm

weight
kg

two thousand five hundred and three

CM-10-90

fifteen

four hundred and eighty

two hundred

sixteen

forty-five

two hundred and twenty

ninety

4-��18

4-M10

two hundred

one hundred and fifteen

fifteen point eight

two thousand five hundred and four

CM-10-160

fifteen

five hundred and five

two hundred and ten

eighteen

fifty-five

two hundred and eighty

one hundred and sixty

4-��18

4-M10

two hundred and sixty

one hundred and eighty-five

twenty-six point five

two thousand five hundred and fifty-three

CMWW-20-180-1

sixteen

seven hundred and twenty

three hundred and twenty

eighteen

sixty-five

three hundred and thirty-five

one hundred and eighty

4-��18

6-M8

three hundred

two hundred and fifteen

fifty-one point seven

two thousand five hundred and fifty-four

CMWW-20-270-1

sixteen

seven hundred and twenty

three hundred and twenty

twenty

sixty-five

four hundred and twenty-five

two hundred and seventy

4-��18

6-M8

three hundred and sixty

three hundred

seventy point four

two thousand five hundred and fifty-six

CMWW-20-330-1

sixteen

seven hundred and twenty

three hundred and twenty

twenty

sixty-five

four hundred and ninety

three hundred and thirty

4-��22

6-M8

four hundred and ten

three hundred and sixty

ninety-five point one

generation number	model	rated voltage kV	Outdoor end Nominal climbing Electric distance mm	power frequency voltage kV r.m.s ��				Full wave shock Withstand voltage kV peak ��	Resistance to bending failure Load N ��
				Dry tolerance	Moisture tolerance	puncture	Visible corona
two thousand five hundred and three	CM-10-90	ten	-	forty-seven	-	seventy-five	-	eighty	four thousand
two thousand five hundred and four	CM-10-160	ten	-						eight thousand
two thousand five hundred and fifty-three	CMWW-20-180-1	twenty	four hundred and fifty	seventy-five	fifty	one hundred and twenty	fourteen point seven	one hundred and twenty-five	sixteen thousand
two thousand five hundred and fifty-four	CMWW-20-270-1	twenty	four hundred and fifty						sixteen thousand
two thousand five hundred and fifty-six	CMWW-20-330-1	twenty	four hundred and fifty						thirty thousand

Figure 15

Figure 16

CM series busbar wall bushing

[High voltage through wall conduit]CL CW CWL CWWL CWW CM CMWW CB CWVB High voltage through wall ceramic conduit CL CW CWL CWWL CWW CM CMWW CB CWVB

2026-6-13 18:28:26

Usage and classification

CL CW CWL CWWL CWW CM CMWW CB CWVB high-voltage through wall porcelain conduit is suitable for insulation and support of conductive parts passing through walls or other grounding objects in power stations, substations, distribution equipment, and high-voltage electrical appliances with AC voltage below 35kV. The conduit is suitable for ambient temperatures ranging from -40 to+40.
The ceramic conduit through the wall is divided into outdoor and indoor according to the installation location. Divided by structure into guide rod type and busbar type. According to the conductor material used, it can be divided into aluminum conductors and copper conductors. Divided into ordinary type and stain resistant type according to installation location.

Technical standards

CL CW CWL CWWL CWW CM CMWW CB CWVB high-voltage through wall porcelain bushing is manufactured in accordance with the national standards GB12944.1-12944.2.

Model Description

CL indoor aluminum conductor through wall ceramic conduit
C - Indoor copper conductor through wall ceramic conduit
CWL - Outdoor - Indoor Aluminum Conductor Wall Ceramic Sleeve
CWWL - Pollution resistant outdoor indoor aluminum conductor through wall ceramic conduit
CW - Outdoor - Indoor Copper Conductor Wall Ceramic Sleeve
CWW - Pollution resistant outdoor indoor aluminum conductor through wall ceramic conduit
CM - Indoor busbar type through wall ceramic conduit
CMWW - Pollution resistant outdoor indoor busbar type through wall ceramic conduit
CB indoor round copper guide rod through wall ceramic sleeve
CWB - Outdoor - Indoor Round Copper Guide Rod Wall Ceramic Sleeve

Sleeve form	Rated voltage of casing (effective value)	Maximum voltage of casing (effective value)	Power frequency voltage (effective value) not less than				Lightning impulse withstand voltage (peak value) not less than
			Dry tolerance 1min	Moisture tolerance 1min	puncture	Visible corona
Ordinary and stain resistant types	six ten twenty thirty-five	six point nine eleven point five twenty-three forty point five	twenty-three thirty fifty eighty		fifty-eight seventy-five one hundred and twenty one hundred and seventy-six	�� �� fourteen point eight twenty-five point eight	sixty seventy-five one hundred and twenty-five one hundred and eighty-five

Table 3 Main dimensional characteristics of busbar type through wall ceramic conduit mm

Sleeve model

drawing number

Rated voltage kV

Installation location

Total length L

One end length L_two

Install flange

The maximum diameter of the casing at the point of penetration into the wall hole

Ceramic sleeve aperture d_three

Minimum nominal creepage distance for outdoor end

Filth level

Rated bending load kN

Aperture d_two

Hole spacing a

Number of holes

CM-10-90

CM-10-160

seven

ten

Indoor

four hundred and eighty

five hundred and five

two hundred

two hundred and ten

eighteen

two hundred

two hundred and sixty

four

two hundred and twenty

two hundred and eighty

ninety

one hundred and sixty

��

four

eight

outdoor

��

Indoor

CMWW-20-180-1

CMWW-20-270-1

CMWW-20-330-1

seven

twenty

seven hundred and twenty

three hundred and twenty

eighteen

twenty-two

three hundred

three hundred and sixty

four hundred and twenty

four

three hundred and thirty-five

four hundred and twenty-five

five hundred

one hundred and eighty

two hundred and seventy

three hundred and thirty

four hundred and fifty

sixteen

thirty

Table 4 Main dimensional characteristics of ceramic bushing for round copper conductive pole through wall mm

Installation location

Sleeve model

drawing number

L_one

L_two

D_one

D_two

L_three

Minimum nominal creepage distance for outdoor end

Rated bending load kN

Indoor

CB-35/400

CB-35/600

nine

nine hundred and twenty-five

eight hundred and ten

three hundred and seventy

one hundred and eighty

two hundred

fifteen

M14 × 1.5

M20 × 1.5

forty

seven point five

Outdoor -
Indoor

CWB-10/400

CWB-10/600

CWB-10/400

CWB-10/600

eight

nine

five hundred and eighty

nine hundred and eighty

four hundred and seventy

eight hundred and sixty

two hundred and fifty-five

four hundred and thirty

one hundred and ten

one hundred and eighty

one hundred and seventy-five

two hundred

eighteen

fifteen

M14 × 1.5

M20 × 1.5

M14 × 1.5

M20 × 1.5

forty

two hundred and thirty

five hundred and ninety-five

seven point five

name	model	rated voltage ��KV��	Rated current (A)	remark
Indoor aluminum conductor	CL-	10KV	250A��400A��630A��1000A��1600A 2000A��3150A
Indoor aluminum conductor	CL-	35KV	250A��400A��630A��1000A��1600A
outdoor aluminum conductor	CWL-	10KV	250A��400A��630A��1000A��1600A 2000A��3150A
		20KV	2000A��3150A��4000A
		35KV	250A��400A��630A��1000A��1600A
Indoor copper conductor	C- CB-	10KV	250A��400A��630A��1000A��1600A 2000A��3150A ��4000A
	C- CB-	35KV	250A��400A��630A��1000A��1600A
	CC-	10KV	1000A��1600A��2000A	copper rod
	CB-	35KV	400A��630A��1000A��1500A��2000A	copper rod
outdoor copper conductor	CW- CWB-	10KV	250A��400A��630A��1000A��1600A��2000A��3150A
		20KV	2000A��3150A��4000A��5000A
		35KV	250A��400A��630A��1000A��1600A
	CWC-	10KV	1000A��1600A��2000A��	Copper bars and rods
		20KV	1000A��1600A��2000A��3150A	Copper bars and rods
		35KV	1000A��1600A��2000A��3150A	Copper bars and rods
busbar wall bushing	CM-12-86	12KV
	CM-12-105	12KV
	CM-12-142	12KV
	CM-12-160	12KV
	CM-24-130	24KV
	CMW-24-180	24KV	4000A
	CMW-24-330	24KV	8000A
	CMW-40.5-320	40.5KV	6000A
	CMW-24-330	24KV	10000A
outdoor anti-fouling	CWWL-	35KV	400A��630A��1000A��1600A	aluminum bar
outdoor anti-fouling	CWW-	35KV	400A��630A��1000A��1600A	copper busbar

CL CW CWL CWWL CWW CM CMWW CB CWVB High voltage through wall porcelain conduit