Hi all

The regs state that metal enclosures on pvc conduit should be earthed if they can become live and touched.6.12.3.1.
What if the metal enclosure (4x4 box,4x2 box,round box for lights are on bosal or black enamel steel conduit .Would the boxes still need to be bonded /earthed if the switch ,light or plug that connects onto the box is earthed at the there earth terminal.

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