Mine Cable Load Combustion Tester

The Mine Cable Load Combustion Tester is specially designed to evaluate the flame-retardant performance of mine cables and cable joints under overload conditions. The instrument allows simulation of high-temperature operation where cable cores reach up to 204℃ and applies a controlled flame to assess the fire resistance and high-temperature behavior of insulation and sheath materials.

The tester is manufactured according to MT 386-1995 / MT 386-2011 “Test Methods and Criteria for Flame Retardancy of Mine Cables”. It is also compliant with GB 3836.1-2000 for electrical equipment in explosive gas atmospheres. The testing cabinet and control system are ergonomically designed for easy operation and observation.

Applications

(1) Mine Cable Safety Evaluation:

Assessment of flame-retardant properties of power cables used in coal mines.

Evaluation of non-metallic cable joints for fire resistance and material safety.

(2) Quality Control in Production:

Routine testing for production of flame-retardant mine cables.

Ensures conformity with national and international fire safety standards.

(3) Research & Development:

Development and improvement of high-performance flame-retardant cable materials.

Analysis of cable insulation and sheathing materials under overload and high-temperature conditions.

(4) Regulatory Compliance & Certification:

Supports certification of mine cables for international export markets.

Provides test data for compliance with safety regulations in mining operations.

(5) Training & Education:

Technical training for mining electrical engineers and safety specialists.

Demonstration of flame-retardant behavior under simulated overload conditions.

Standards

The tester complies with the following standards:

(1) MT 386-2011 — Test Methods and Criteria for Flame Retardancy of Mine Cables

(2) MT 818-2009 — Mine Cables Technical Specification

(3) GB 3836.1-2000 — Electrical Apparatus for Explosive Gas Atmospheres — General Requirements

(4) IEC 60332-1 — Tests on Electric Cables Under Fire Conditions — Part 1: Flame Propagation for a Single Insulated Wire or Cable

(5) IEC 60332-3 — Flame Propagation for a Bunch of Wires

(6) EN 50266-2-4 — Tests on Electric and Optical Fibre Cables Under Fire Conditions — Horizontal Flame Test

(7) ISO 6722-1 / ISO 6722-2 — Automotive Cables — Flame Retardant and Electrical Performance

Technical Parameters

Features

(1) High-Quality Construction: Stainless steel cabinet and fixtures (SUS304) with corrosion resistance and long service life.

(2) Large Observation Window: Transparent window allows clear visual monitoring of cable burning during tests.

(3) Precision Flame Control: Brass burner with adjustable flame height, needle valve for precise gas flow, automatic ignition, and electronic flame shutdown.

(4) Safe Electrical Control: Load current is automatically disconnected when the burner is withdrawn; manual override and safety timers included.

(5) High Automation: PLC and timer-controlled operation ensures precise combustion duration, with real-time monitoring and alarms.

(6) Versatile Load Testing: Supports overload simulation for a wide range of mine cable types and joints.

FAQ

(1) What is this instrument?

It is a combustion tester for mine cables under high-load conditions to assess flame-retardant performance.

(2) What types of cables can it test?

Coal mine power cables, flame-retardant cables, and non-metallic cable joints.

(3) Why is it important?

Mine cables must meet strict flame-retardancy standards to ensure safe operation and prevent fire hazards.

(4) How does it operate?

Cables are energized under overload conditions, reaching core temperatures of 204℃, while a controlled flame is applied to evaluate combustibility.

(5) Can it be used for export compliance?

Yes, the instrument meets MT, GB, IEC, and EN standards suitable for international certification.