Free notes
Zs: what you check it againstYour B32 reads 1.2 ohms on test. Pass?
Free from the notes: Sparky’s video on it, the section word for word as members see it, and a PDF to keep.
The notes
Exactly as they are on the site.
Record Zs in column 27 of the schedule of test results, then compare it with the maximum. Here’s the bit that loses marks: check it against the maximum measured value, not the maximum tabulated one.
The tabulated maximum is what you wrote on the schedule of circuit details. If you used a measured value from Guidance Note 3 or the On-Site Guide there instead, say so in the remarks.
BS 7671 · Tables 41.2–41.4 · maximum Zs On-Site Guide · Table B6 · the 80% values
Free section from Sparky Study Notes. The full Level 3 notes, 1,463 practice questions and the video lessons: sparkystudynotes.co.uk
Test yourself on it
The tests are in the members’ area. Get one wrong and it shows you why, and where to revise.
Get new notes and exam tips from Sparky
About one email a fortnight. Unsubscribe any time. Privacy noticeThat was one section. There are 583.
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.
- 583sections of written notes
- 35video lessons
- 1,463practice questions
- 146diagrams, redrawn
- 18th Edition
- Building Regs
- PAT
- Fundamental Inspection & Testing
- Initial Verification
- Periodic Inspection & Testing