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Electric cables. Internal gas-pressure cables and accessories for alternating voltages up to and including 275 kV (<i>U</i><sub>m</sub> = 300 kV). Requirements and test methods
BS 7923 – Electric cables. Internal gas-pressure cables and accessories for alternating voltages up to and including 275 kV (<i>U</i><sub>m</sub> = 300 kV). Requirements and test methods
