IEC 60840 specifies test methods and requirements for power cable systems, stand-alone cables, and stand-alone accessories for fixed installations and rated voltages above 30 kV (U m = 36 kV) and up to 150 kV (including U m).
The requirements apply to single-core cables and individually shielded three-core cables and their accessories for normal installation and operating conditions, but in standard tests such as submarine cables and accessories, or adjustment of special test conditions may be necessary.
This standard does not cover transition connections between cables with rolled insulation and paper insulated cables.
This standard includes the following important technical changes:
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