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using 12/20kv cable on 3.3kv system voltage

thread238-448104

using 12/20kv cable on 3.3kv system voltage

using 12/20kv cable on 3.3kv system voltage

(OP)
could we use 12/20kv (24kv) cable to replace 3.6/6kv (7.2kv) cable in 3.3kv system voltage? what is the standard reference?

RE: using 12/20kv cable on 3.3kv system voltage

Theoretically speaking it is possible. However it depends on application-as current carrying capacity, armouring, earthing, bending radius, reduced smoke and other.
1.8/3.3 see BS 5467 and for 12/20 IEC 60502-2.

RE: using 12/20kv cable on 3.3kv system voltage

(OP)
@7anoter4, the cable size is the same 3x185mm2, since the market availability (due to minimum length purchased) is only the 12/20kv despite of requirement 3.6/6kv. Thank for the feedback.

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