Difference between revisions of "Earthing Types"
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* C = Combined | * C = Combined | ||
* I = Isolated | * I = Isolated | ||
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| + | An [http://www.diyfaq.org.uk/electrical/electrical.html#system explanation] can be found here. | ||
A useful [http://www.iee.org/Publish/WireRegs/WiringMatters/Documents/Issue16/2005_16_autumn_wiring_matters_earthing_your_questions_answered.pdf IEE document on earthing] (presumably most DIYers can ignore the section on earthing caravan pitches) | A useful [http://www.iee.org/Publish/WireRegs/WiringMatters/Documents/Issue16/2005_16_autumn_wiring_matters_earthing_your_questions_answered.pdf IEE document on earthing] (presumably most DIYers can ignore the section on earthing caravan pitches) | ||
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==See Also== | ==See Also== | ||
Revision as of 16:21, 7 May 2007
Earthing Types
http://groups.google.co.uk/group/uk.d-i-y/msg/14a0b8a90fca226b
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)