blade thickness, 13A plug earth pin ?

Jan 08, 2007 9 Replies

I'm crap with a micrometer - can anyone with one available (or detailed specs) tell me what the blade width should be of the earth pin of a standard 13A plug please ?



This has come about because of a cheap AC charger with a plastic earth pin which I suspect is out of spec - its a bloody tight fit in two different manufacturers' sockets...



A normal brass pin (if i'm not mistaken) is about 4.1mm wide, but this seems to be 4.3-4.4mm wide



TIA :-}


Look for "Type G" about 60% down this page.

formatting link

Just measured the MK plug on my reading lamp. 4.0 x 8.0mm

I think you should make a fuss assuming this is imported rubbish but still marked BS/CE.

Jon

IIRC, 5/16" x 5/32"

You know what, that's something I hadn't actually checked, but it is from a reputable UK vendor...

Thanks for giving me the chance to use my recently bought half-price Woolworths electronic calipers (they look alright to me).

Plastic pin: 0.165 inch. 4.30 mm. Correct fitting.

Metal pin: 0.155 inch. 4.00 mm. Correct fitting.

Sylvain.

A quote from a recent post in the RNIB talking book list:

The oversize adaptors are being taken out of service for H&S reasons.

Thanks for that - I hadn't been able to find any "official" specs or tolerances for some reason !

Join the Discussion

Have something to add? Share your thoughts — no account required.

Didn't find your answer?

Ask the community — no account required