沿矿井井筒敷设各种电缆线路时,必须保证电缆线路的防护,使其免受从罐笼里的矿车中或箕斗卸载时从高处偶然掉落的石块的损伤和其它的机械损伤。已知的垂直电缆线路防止机械损伤的保护装置有由各种材料制成的导管或金属槽。这些保护装置不适于沿矿井井筒敷设的长距离电缆线路,因为这种线路需要经常检查;此外,潮湿的腐蚀性介质会大大缩短金属槽的寿命,从而使金属消耗量增大。众所周知,有一种由矩形截面的固定构 When laying a variety of cable runs along a mine shaft, the cable runs must be protected from damage from rockfalls and other mechanical damage that falls accidentally from the mine car in the cage or when the skip is unloaded. Known vertical cable lines Protection against mechanical damage includes conduits or metal slots made of a variety of materials. These protectors are not suitable for long-distance cable runs laid along the mine shaft because this type of wiring requires frequent inspection; in addition, wet, corrosive media can substantially reduce the life of the metal troughs, resulting in increased metal consumption. It is well-known that there is a fixed structure made of rectangular cross-section