Modern digital domestic meters have 2 terminal covers on them. This is so that Contractors can isolate and rewire the tails. Where outside meters are used, some supply authorities require a double pole isolator where the tails enter the building.
I say yes, and I would do it. Someone mentioned earlier about the neutral being the earth condutor in a PME system, BUT this is only as far as the service fuse. So why not switch the neutral after this? There is no reason not to AFAIK.
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