Copper Mine Flame Retardant Cable WDMYJY23-0.6/1kv Mining Cable

Copper Mine Flame Retardant Cable WDMYJY23-0.6/1kv Mining Cable

As a key supporting product for mine safety production, the mining halogen-free low smoke cable (WD-MYJY23) has shown a significant increase in market demand and technical requirements in recent years under the dual effects of policy promotion and technological upgrading. The following analysis will be conducted from the aspects of product characteristics, industry standards, application scenarios, and development trends:

1、 Product Core Features and Technological Innovation

In the naming of WD-MYJY23 cable, 'WD' represents halogen-free low smoke, 'MYJY' represents mining mobile flexible cable, and '23' refers to double-layer steel belt armor structure. The core technological breakthroughs are reflected in:

1. Material innovation: Adopting cross-linked polyethylene (XLPE) insulation layer and special formula halogen-free flame retardant sheath, the smoke density during combustion is ≤ 60D (in accordance with GB/T 17651 standard), and the toxicity index is ≤ 5 (IEC 60754 standard), far superior to traditional PVC cables.

2. Structural strengthening: The double-layer galvanized steel strip armor design enables the cable to have a compressive strength of 4000N/10cm and a bending radius of ≤ 6 times the cable diameter, adapting to the complex mechanical stress environment of mines.

3. Electrical performance: Rated voltage of 0.6/1kV, long-term operating temperature of 90 ℃, withstand temperature of 250 ℃ (5 seconds) during short circuit, insulation resistance ≥ 500M Ω· km.

According to third-party testing data, this type of cable has a self extinguishing time of less than 30 seconds and a light transmittance of ≥ 80% after the evacuation of the open flame in simulated tunnel fire experiments, effectively ensuring the visual distance for underground personnel to escape.

Copper Mine Flame Retardant Cable WDMYJY23-0.6/1kv Mining Cable

2、 Industry standards and certification system

The mandatory certification (MA/KA) for mining cables in China requires enterprises to pass:

-Implementation Rules for Safety Mark Certification of Mining Products by the National Center for Safety Standards

-GB 12972-2018 "Rubber sheathed flexible cables for mining" Electrical and mechanical performance testing

-MT 818-2009 "Flame retardant cables for coal mines" - Flame retardant performance classification (highest for Class A)

Underground high-voltage cables must be flame-retardant, and halogen-free low smoke cables should be used from mobile substations to mining area substations. This directly drives the penetration rate of WD-MYJY23 in newly built mines to increase from 35% in 2020 to 72% in 2024

Through the above brief introduction, I believe everyone has a clear understanding that the wires and cables we usually choose must be selected according to our actual needs. Don't buy some non-standard wires for temporary convenience, which may cause a fire. Therefore, selecting the appropriate and safe cables correctly is the primary consideration. I carefully select rubber and plastic cables, choose good raw materials, and create high-quality home decoration wires, giving you and your family a reassuring guarantee.

Tianjin Cable Factory Rubber and Plastic Cable Factory is a manufacturer specializing in the production of wires and cables. The performance of the Yinshun brand wires and cables produced by the company meets the requirements of the International Electrotechnical Commission and national standards. The leading products include: mining halogen-free low smoke control cables, mining rubber sheathed cables, mining halogen-free low smoke power cables, cross-linked power cables, PVC insulated power cables, mining control cables, mining computer cables, coal mine halogen-free low smoke cables, electrical equipment wires and cables, and other types of cables. Special cables can also be customized according to user needs;