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Technical support

The helpline/mailbox can only help with issues to do with electrical installation work.

The technical helpline

The telephone service typically operates on the following days and times:

T: +44 (0)1438 765599
F: +44 (0)1438 765526

Monday and Friday, from 9 am to 12 pm and 2 pm to 4:30 pm.

(Days subject to change - please listen to the recorded message)

Disclaimer: While the IET believes that the information and guidance provided over the helpline is correct, parties must rely upon their skill and judgement when making use of them. The IET assumes no liability for loss or damage caused by error or omission, whether such an error or omission is the result of negligence or any other cause. Where reference is made to legislation it is not to be considered as legal advice. Any and all such liability is disclaimed.

Complete the form below to submit your query


This technical support service is intended to provide help on the technical aspects of BS 7671, IET guidance publications and associated statutory documents and requirements.

The IET has no authority to interpret the requirements of BS 7671, The IET Wiring Regulations, Requirements for Electrical Installations, however, within that constraint, I hope you will find the comments helpful.

The IET will endeavour to reply to your email within ten working days.