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Doctors Medicines MCQs Q&A

Which of the following color wires is suggested for earth connection as per ISI code?

Which of the following color wires is suggested for earth connection as per ISI code? Correct Answer green

Function

Colour code

Single-phase line

Red/Brown

Single-phase neutral

Black/Blue

Single-phase protective ground or earth

Green

Three-phase line 1

Red

Three-phase line 2

Yellow

Three-phase line 3

Blue

Three-phase neutral

Black

Three-phase protective ground or earth

Green (or) Greenish Yellow

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