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Guest111
that's what separates us from the diy brigade,knowing ones limitationsThe BS7671 says competent person- A person who posses sufficient technical knowledge, relevant practical skills and experience for the nature of the electrical work undertaken and is able at all times to prevent danger and, where appropriate, injury to him/ herself and others.
To me that reads there is no such thing because one person wouldn't be able to be all of the above for every aspect of electrical work.
We all have our fields which we are comfortable to work in, so we usually just stick to them. See the thread earlier about becoming a panel wirer as a example, someone confident in house bashing but has prospects else where, but uncertain what it involves.