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The plastic incoming pipe questionIncoming plastic pipe. Does it need bonding?
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The test is the incoming service, at the meter or stop cock. Plastic in means the pipe is not introducing earth potential from outside, so it is not an extraneous conductive part, so there is nothing to bond. Metal in means it must be bonded, on the load side, within 600 mm of the meter.
| Incoming service | Main bonding? | Supplementary? |
|---|---|---|
| Plastic | No | No |
| Metallic | Yes — within 600 mm of the meter | Only if the conditions in Section 701 are not met |
If the pipework is buried or you cannot see where it enters, look at the meter or stop cock — the pipe arriving at that fitting is the one that decides it.
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- 18th Edition
- Building Regs
- PAT
- Fundamental Inspection & Testing
- Initial Verification
- Periodic Inspection & Testing