T/GDWCA 0009-2018 XLPE-insulated DC high-voltage cable

Scope

Scope: This standard specifies the terms and definitions, product models, product names and product presentation methods, usage characteristics, general requirements for cable structure, finished cable testing, delivery length, inspection rules, marking, packaging, transportation, and storage of XLPE extruded insulated DC high-voltage cables. This part applies to XLPE extruded insulated DC high-voltage cables with a maximum rated temperature of 105°C and a DC rated voltage of (10–50) kV. Main technical content: I. Usage characteristics 1. The long-term operating temperature of the cable model used should not exceed the product's rated temperature. 2. The product's rated voltage is the value specified in the product specifications. II. General requirements for cable structure 1. When the insulation contacting the copper conductor is tested for corrosion of unprotected copper and no protective isolation layer is used, each single wire of the solid conductor and stranded conductor should be covered with a suitable metal or alloy coating. 2. The coating on the stranded conductor is only necessary to prevent the insulation layer from adhering to the copper conductor, not for corrosion prevention. In this case, the coating may only be applied to the outermost metal wire. 3. The insulation should be tightly wrapped around the conductor core and should be easy to remove without damaging the insulation layer, coating, etc.

Development Information

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