Is there a maximum length for a spur cable?

Former Community Member over 5 years ago

Good afternoon, hope you are all well.

Just two quick questions.

Is there a maximum length for a 2.5mm twin and earth spur cable terminated in a ring final wall socket?

Is there a maximum length for a 2.5mm twin and earth spur cable terminated in the Consumer unit RCBO which also supplies a ring final. I understand that there can only be one spur cable from the RCBO. So max three cables in RCBO.

As always, many thanks in advance.

Simon

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0 ebee over 5 years ago

There is a high number of installers who think the limit is 2 metres (or 3) that is not correct. However limiting lengths of spurs is no bad thing and including all points to the ring proper is usually a better basis, leaving spurs for later additions if at all
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0 ebee over 5 years ago

There is a high number of installers who think the limit is 2 metres (or 3) that is not correct. However limiting lengths of spurs is no bad thing and including all points to the ring proper is usually a better basis, leaving spurs for later additions if at all
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Is there a maximum length for a spur cable?

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