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Your instruments have to be made to a standardIs cheap test gear worth the risk?
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The question at the end: Is cheap test gear worth the risk? The answer is in the notes below.
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Go to Guidance Note 3 · Section 4. Your test instrument itself has to be manufactured to a British Standard, and the section gives two of them — both concerned with protecting you from electric shock while you test.
The "series" wording there makes sense against something you already know: a circuit breaker is to BS EN 60898-1, and a different type in the same family would be -2. A series is just a standard with parts under it.
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Sparky Study Notes is the whole Level 3 syllabus written up like this: the explanation, the worked example, and where it is in your book. With a video lesson for every part and a practice paper for every exam.
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- 18th Edition
- Building Regs
- PAT
- Fundamental Inspection & Testing
- Initial Verification
- Periodic Inspection & Testing