Difference between revisions of "Earthing Types"
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An [http://www.diyfaq.org.uk/electrical/electrical.html#system explanation] can be found here. | An [http://www.diyfaq.org.uk/electrical/electrical.html#system explanation] can be found here. | ||
| − | A useful [http://www. | + | A useful [http://www.theiet.org/publishing/wiring-regulations/mag/2005/16-earthing-questions.cfm?type=pdf IEE document on earthing] (presumably most DIYers can ignore the section on earthing caravan pitches) |
You can find details on installing a TT earth [[TT Earthing|here]]. | You can find details on installing a TT earth [[TT Earthing|here]]. | ||
Revision as of 12:33, 20 October 2010
Earthing Types
BS 7671 lists five types of earthing system:
- TN-S
- TN-C-S
- TT
- TN-C
- IT
Where those letters indicate:
- T = Earth (from the French word Terre)
- N = Neutral
- S = Separate
- C = Combined
- I = Isolated
An explanation can be found here.
A useful IEE document on earthing (presumably most DIYers can ignore the section on earthing caravan pitches)
You can find details on installing a TT earth here.