The meaning of the mineral cable naming mark
2025-09-29 09:04:17
The cable naming system for flame retardant cables used in coal mines follows a structured format that conveys key information about the cable's purpose, construction, and specifications.
Part I: The capital letter **M** stands for the series code of the flame-retardant cable designed specifically for use in coal mines. This indicates the general application area and ensures the cable meets the necessary safety standards for such environments.
Part II: A feature code is used to represent the specific conditions or applications in which the cable will be used. These codes help identify the cable’s suitability for different scenarios. For example:
- **C** – For coal mining machines
- **D** – For low-temperature environments
- **M** – For cap light lines
- **Y** – For mobile coal mining equipment
- **Z** – For electric drills
Part III: The structural feature code describes the internal construction of the cable. Common codes include:
- **B** – Woven reinforcement
- **J** – Band monitor core
- **P** – Non-metallic shield
- **PT** – Metal shield
- **Q** – Light-weight design
- **R** – Wrap reinforcement
Part IV: This part denotes the material used for insulation and sheathing. If both the insulation and sheath are made of elastomer (rubber) materials, this section is omitted. Otherwise, it is marked with the letter **E** to indicate the use of rubber-like materials.
Part V: The nominal voltage is indicated using Arabic numerals in kilovolts (kV), written as **U0/U**, where **U0** represents the phase-to-earth voltage and **U** is the phase-to-phase voltage.
Part VI: The number of power conductors and their cross-sectional area are expressed in Arabic numerals, separated by an **"x"**, with the unit being **mm²**. For example, **3x10** would mean three power cores with a cross-sectional area of 10 mm².
Part VII: Similarly, the number and cross-sectional area of ground conductors are also expressed in the same format, using **"x"** between the numbers.
Part VIII: The number and cross-sectional area of auxiliary conductors are also noted in the same manner.
The fourth and fifth parts are connected with a **"-"**, while the sixth and seventh parts are joined with a **"+"**. This format ensures clarity and ease of identification for engineers and technicians working in the field.
For more information on cable specifications and industry standards, visit [http://news.chinawj.com.cn](http://news.chinawj.com.cn).
Editor: Hardware Business Network Information Center
Snow Machine Fan Blades,Silent Axial Fan Blades,Metal Axial Fan Blades,Fan Impeller For Truck
Changzhou Keyleader Fan Technology Co. Ltd. , https://www.keyleaderfan.com