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Fire retardant rubber sheathed cables for coal mines
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1. characteristics and product standards of flame-retardant cables for coal mines

1.1 the flame-retardant cables used in coal mines are the wires and cables designated by the State Bureau of coal industry. They are classified according to the standards, including the mobile type flame-retardant flexible cables for coal mines, the rated 10kV of the coal mines and the copper core fixed for laying the flame-retardant power cables and the coal mine flame retardant communication cables. Compared with ordinary products, the flame-retardant properties of coal mine flame retardant cables are higher, and three kinds of combustion test requirements must be satisfied at the same time.

According to the regulations of the State Coal Mine Industry Bureau, the flame-proof cables used in coal mines should pass the test and have safety certificates for coal mine products.

1.2 product standard


MT818.1~818.13 - 2009 "coal mine flame retardant cable" issued by the State Bureau of coal industry

2. type identification of flame retardant cable for coal mine

2.1 type recognition of mobile flame retardant flexible cables for coal mines

Code for usage characteristics of 2.1.1 cables

C mining machine M cap lamp Y mining equipment (mobile) using Z electric drill

Code for structural characteristics of 2.1.2 cables

B braided reinforced J monitor or auxiliary core P non-metal shield PT metal shield Q light R wrap reinforcement

2.4 example of coal mine flame-retardant cable products:

A) shearer shielded rubber sheathed flexible cable, rated voltage 0.66/1.14kV, power cord 3 x 50, ground core 1 x 10, control core 4 * 4,

With a semi conductive shield, it is expressed as: MCP-O.66/1.14 3 x 50+1 x 10+4 x 4 MT 818.2 - 2009

B) shearer metal shield rubber sheathed flexible cable, rated voltage 0.66/1.14kV, power cord 3 x 70, ground core 1 * 35, auxiliary core

1 x 35, with metal shielding layer, as follows: MCPTJ-O.66/1.14 3 * 70+1 * 35+l * 35 MT 818.4 - 2009

C) mobile soft cable for coal mine, with rated voltage of 0.38/0.66 kV, power line core 3 x 25, ground core 1 x 16, as follows:

MY-O.38/0.66 3 x 25+1 * 16 MT 818.5-2009

D) mobile metal shield type soft rubber cable for coal mine, rated voltage 3.6/6kV, power cord 3 x 35, ground core 3 * 16/3,

The monitoring core is 3 x 2.5, with metal shielding layer, as MYPTJ-3.6/6 3 x 35+3 * 16/3+3 * 2.5 MT 818.6-2009

E) mobile shielded rubber flexible cable for coal mine, with rated voltage of 3.6/6kV, power line core 3 x 25, ground core 1 x 16, with semi conductive screen.

The shield layer is represented as: MYP-3.6/6 3 x 25+1 * L6 MT 818.7-2009

F) shielded rubber sheathed cables for coal mine electric drill, rated voltage 0.3/0.5kV, power cord 3 x 4, ground core L * 4, with semi conductive shielding layer,

It is expressed as: MZP-0.3/0.5 3 * 4+l * 4 MT 818.8 - 2009

G) mobile light rubber sheathed flexible cables for coal mines, rated at 0.3 / 0.5kV, insulated wire cores 3 x 2.5, without shielding.

MYQ-0.3/0.5 3 x 2.5 MT 818.9 - 2009

H) the miner's cap lamp line, 2 x 0.75, is used as a coal mine.

MM 2 x 0.75 MT 818.10 - 2009

3 type and name of cable

Type and name of mobile flame retardant flexible cable for coal mines

Model

Cable name

MC

MCP

Rubber sheathed flexible cable for mining machine

Shearer shielded rubber sheathed flexible cable

MCP

Shearer shielded rubber sheathed flexible cable

MCPJB

 

MCPJR

Shearer shield monitoring reinforced reinforced rubber flexible cable

Shearer shielding monitoring reinforced rubber sheathed flexible cable

MCPTJ

MCPTJ

Shearer metal shield type rubber sheathed flexible cable

MCPT

Shearer metal shield rubber

Flexible cable

MY

Flexible rubber cable for coal mine

MYP

Movable shielded rubber sheathed flexible cables for coal mines

MYPTJ

Mobile metal shield type flexible rubber cable for coal mine.

Last article: Introduction of special wire and cable products
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