DM Electrical Exam Practice Questions - Dubai Municipality DEQ Technical Staff Exam - Electrical Fitting Contracting (Activity 453014) Exam

In BS 7671, what is the maximum disconnection time for a 230 V final circuit not exceeding 63 A on a TN system?

5 seconds 0.4 seconds 1 second 0.2 seconds

Correct Answer:

0.4 seconds

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