GB T 12706.4-2002 Rectified voltage 1kV (Um = 1.2kV) to 35kV (Um = 40.5kV) extruded insulated power cables and accessories - Part 4: Rated voltage 6kV (Um = 7.2kV) and 35kV (Um = 40.5kV) Power Cable Accessories Test Requirements.pdf
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