KTH Type intrinsically safe mining telephoneDetailed product description：

Scope and Application
KTH intrinsically safe mining telephone is suitable for places containing gas, coal mine and other hazardous gases underground in coal mines. It is combined with related equipment HDK couplers and dispatch consoles or switches to form a coal mine safety communication system network.

The KTH intrinsically safe mining telephone is designed and manufactured in accordance with relevant standards such as GB3836.1-2000 "Electrical Equipment for Explosive Gas Environments Part 1: General Requirements", GB3836.2-2000 "Electrical Equipment for Explosive Gas Environments Part 2: Explosion proof Type" d "", GB3836.4-2000 "Electrical Equipment for Explosive Gas Environments Part 4: Intrinsically Safe Type" i "", and MT289-92 "General Technical Conditions for Coal Mine Intrinsically Safe Common and Automatic Telephone Sets".

Model meaning

Technical parameters


Structural Overview

1. Product structure: The telephone is composed of a body, a wiring cavity, internal components, a receiver, and other parts. The body and wiring chamber are made of high-quality fiberglass flame-retardant materials, and the phone calls are made using high-quality dials or number keys. All internal components are installed inside the body. External incoming lines enter the wiring chamber through the introduction device.
2. Main features
a、 Using electromagnetic microphones instead of carbon microphones has the advantages of long lifespan, stable performance, low noise, and good linearity;
b、 The onboard circuit adopts internationally recognized integrated circuits, which have the characteristics of accurate numbering, clear communication, and stability;
c、 The whole machine has the characteristics of shock resistance, moisture resistance, small size, light weight, durability, and easy maintenance.