FHJDC10 series overhead conductor lightning protection grounding wire clampDetailed product description：

Principle and characteristics of FHJDC10 series overhead conductor lightning protection grounding wire clamp

The lightning protection grounding wire clamp for overhead insulated wires has both the structure of a regular grounding wire clamp and an external gap discharge device. The puncture electrode at the upper end can penetrate the insulation layer of the wire to form an electrical connection between the lightning protection grounding ring and the wire. A grounding rod is hung during line maintenance as the line grounding connection; There is an arcing electrode located at the outer corner of the grounding ring at its lower end, which forms a discharge gap corresponding to the steel foot flange of the line post insulator PS15 or PS20. (If it matches the composite insulator or its objective existing insulator, a dedicated grounding electrode should be installed). During normal operation, there is a large air gap between the arc ignition electrode and the insulator steel foot flange or grounding electrode, resulting in no current passing through; When lightning strikes, the lightning induced overvoltage of the wire exceeds a certain value or encounters direct lightning strikes, causing flashover between the arcing electrode and the grounding electrode (or insulator steel foot flange), forming a short-circuit channel. The continuous power frequency arc burns between the arcing electrode and the grounding electrode or insulator steel foot flange of the lightning protection grounding wire clamp, releasing overvoltage energy to protect the wire from burning and breaking.

The FHJDC10 series overhead conductor lightning protection grounding wire clamp adopts a unique puncture tooth structure and electrode design, with the characteristics of easy installation (no need to strip the insulation layer) and reliable performance. The second-generation product has better arc extinguishing performance and great promotion value.

Model Description



Selection Table of Lightning Protection Grounding Wire Clamp (Table 1)

Product model	Wire clamping range (mm)	Applicable wire specifications	Conductor diameter (mm)	Outer diameter of insulation layer (mm)	Applicable torque (N * m)
FHJDC10-35G～120	φ16～22	JKLY-50～120	8.5～13	16.1～21	twenty-three
		JKLGY-35/6～95/20	7.75～13.18	16.6～22
FHJDC10-120G～240	φ22～28	JKLY-120～240	14.6～18.4	22.6～26.4	twenty-six
		JKLGY-120/7～185/45	13.718～18.62	22.6～27.4
FHJDC10-240G～300	φ26～30	JKLY-300	twenty point six	twenty-eight point six	twenty-eight
		JKLGY-240/30～240/40	20.52～20.58	29.3～29.4

Applicable Insulators and Installation Parameters Table (Table 2)

Insulator model	P-10T Figure B	P-15T Diagram B	FPQ3-10 Figure B	FPQ4-10 Figure B	P-20T Diagram B	PS-15T/500 Figure A	PS-15T/300 Figure A
Corresponding distance D	300±10	300±10	300±10	300±10	300±10	230±10	230±10
Corresponding distance L	80±5	90±10	90±10	120±10	120±10	120±10	120±10

Installation Diagram