When we had our Fire Brigade visit we were advised that PAT testing whilst recommended was not a requirement the Brigade would insist upon.
As long as you are aware of what is covered, make a visual inspection and replace any thing suspect you should be fine.
Here in the Borders, we found it's actually cheaper to buy a new kettle for guest rooms than it is ti have it tested, the man from the FB agreed.
Common sense in what should be used, testing for the sake of testing is, in my opinion, not needed.
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