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Bonding continuity: two tests, one tickTwo bonding readings. Why two?
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Before anything comes off: main switch off, isolated, locked off. You are about to disconnect green-and-yellow, and if there were a fault while it was off, extraneous parts could become live.
Then there are two tests, not one:
| Test | What it proves |
|---|---|
| End to end of the conductor itself | The bonding conductor is continuous — this is your r2 |
| That end to the pipe | The BS 951 clamp is genuinely in contact with the pipe |
Take the higher of the two as your value — it is not written on the schedule (see below).
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- 18th Edition
- Building Regs
- PAT
- Fundamental Inspection & Testing
- Initial Verification
- Periodic Inspection & Testing