As a critical component within power systems utilized for signal transmission and control, control cables require special attention during transport to prevent mechanical damage, insulation degradation, and adverse environmental effects.
Transport Primarily via Reels: Control cables should typically be transported wound onto specialized cable reels to prevent internal structural damage caused by bending, compression, or twisting.
Handling of Short Cable Sections: Short cable sections-those not exceeding 30 meters in length-may be coiled into loops with a radius no smaller than the cable's minimum allowable bending radius; they must then be securely bound at a minimum of four points before handling.
Prohibition Against Flat Transport:** Cable reels are strictly prohibited from being transported in a horizontal (flat) position; failure to observe this rule may result in deformation of the bottom-layer cables due to the weight of the upper layers, or lead to the cables becoming loose.
The transportation of control cables must strictly adhere to specific requirements regarding packaging, handling, transport methods, and environmental management. Cables shall be packaged on sturdy cable reels, with the reel flanges extending beyond the outermost layer of the cable to prevent mechanical damage. During loading and unloading, lifting equipment-such as cranes-must be utilized; under no circumstances is throwing permitted, in order to avoid impact-induced deformation. For road transport, cable reels must be securely fastened and covered with protective sheeting to guard against rain and direct sunlight; for rail transport, loading procedures must comply with applicable regulations. Protective measures are mandatory under extreme temperature conditions: during high temperatures, exposure to direct sunlight must be avoided; during low temperatures, precautions must be taken to prevent the cable from becoming brittle (specifically, heating measures are required at temperatures below -20°C). The face of each reel must be clearly marked with the cable specifications (e.g., KVVP2-22), length, and information regarding the cable's start and end points.
