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I have seen plenty on TN-C-S supplies that are DP.
However, the regs say,
In TN-C systems, the PEN conductor shall not be isolated or switched.
Does that make the DP isolators on TN-C-S systems contrary to regs?
I have looked through ESQCR 2002 to no avail.
However, the regs say,
In TN-C systems, the PEN conductor shall not be isolated or switched.
Does that make the DP isolators on TN-C-S systems contrary to regs?
I have looked through ESQCR 2002 to no avail.