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SJD

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I don't do PV, so not overly familiar with specific regulations.

Yesterday I was changing a consumer unit, and the isolator for the PV was adjacent to the consumer unit.
Due to needing a bit more space, I had to move this isolator a few cm and noticed it was single pole, switching L only.
A second isolator at the PV end of the cable was the same type.
I was a bit surprised, I'd expected N would have been isolated as well, but it was not.

Is this common practice, or should double pole isolators have been used?
 

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