Discuss Why Are Incoming Live/Neutral 16mm and Tails From Consumer Unit 25mm in the UK Electrical Forum area at ElectriciansForums.net
When we have NICEIC inspection
It is so over kill with 25mm, just think of the normal length between the cutout and the meter, 300/400 average, hardly a long run. Also now a days, with LED lamps and down lights and how much more efficient appliances are, loads in peoples house are being reduced compared to 15 years ago,
I feel that people are more comfortable installing 25mm2 tails if the primary ocpd is known to be 100amp as a play it safe concept.
You’re probably right Dave.I feel that those people are lacking in the technical knowledge they are supposed to have.
It's not strange at all really Dave. It can be different assessor each time and they all have there little pet hates and ideas of what is right and wrong. My last assessor stated it needs to be 25mm tails whereas the Stroma tech line said use your knowledge as an electrician to determine the size.That's weird, our NICEIC assessor this year was happy with 16mm tails straight from a 200A supply to a switchfuse. I can't see any real difference.
To be fair to the 25mm² people, there is a certain logic in using the largest reasonable cable size in a situation where it's slightly more of a pain to alter for future upgrades (due to being (theoretically) sealed in the meter) than if they were entirely within the customer's equipment.
It's not strange at all really Dave. It can be different assessor each time and they all have there little pet hates and ideas of what is right and wrong. My last assessor stated it needs to be 25mm tails whereas the Stroma tech line said use your knowledge as an electrician to determine the size.
a) This may be foresight for the future without Petrol/Diesel !comments of previous posts that there seems to be this wish to upgrade to 25mm tails regardless.
Reply to Why Are Incoming Live/Neutral 16mm and Tails From Consumer Unit 25mm in the UK Electrical Forum area at ElectriciansForums.net
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