What type of cable is used to connect portable or stationary equipment in mines to an external source of electric energy?

The use of portable (trailing) cable in mining operations is specifically designed for connecting portable or stationary equipment to an external source of electric energy. These cables are constructed to be flexible and durable, accommodating the dynamic environment of a mine where equipment may need to be moved frequently. They allow for safe and reliable transmission of power over considerable distances, which is critical in underground mining scenarios.

Portable cables are built to withstand the harsh conditions often encountered in mines, including moisture, abrasion, and potential chemical exposure. Ensuring the right type of cable is used is essential for maintaining safety standards and ensuring that electrical equipment operates effectively.

While flexible cables can also be used in various applications, they are not designed specifically for the portable and adaptable needs of mining scenarios. Power cables typically refer to a broader category of cables that may not provide the same level of flexibility and mobility required in a mine. Main supply cables are generally fixed installations that bring power into a mining area but do not address the requirements of portable equipment needing a connection to a power source. Therefore, the specific design and functionality of trailing cables make them the appropriate choice for this application.