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Re: OT what is that vibrating sensation you get when you lightly touch the metal on a mains appliance? |
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| message from Mike Faithfull on 18 May 2004 |
That and a current leakage through the insulation in the appliance ...
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| Mary Fisher replied to Mike Faithfull on 18 May 2004 |
We used to have an electric kettle - back in the sixties and it ws second
hand even then - which we knew was switched on because it gave us a buzz if
it was.
We also had one of those electric one bar fires, with the curved back, which
received the Home Service.
No, straight ...
Mary
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| Andy Hall replied to Mary Fisher on 18 May 2004 |
You're thinking of when the Home Service was called 2LO, Mary.
.andy
To email, substitute .nospam with .gl
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| Mary Fisher replied to Andy Hall on 19 May 2004 |
It was never called that. 2LO was the service before it was divided into
regions.
Mary
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| Dave Plowman replied to Mary Fisher on 19 May 2004 |
LO standing for London, the ident of the actual transmitter.
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| Lurch replied to Mike Faithfull on 18 May 2004 |
Well, I thought that after I posted, possibly not. But it wants
checking to make sure it is functioning correctly. It depends what the
leakage on the appliance is, you could measure it with a meter to
check it against the RCD In rating.
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| Dave replied to Mike Faithfull on 19 May 2004 |
...snipped
As others have, said it's leakage current; what you're feeling is mild nerve
stimulation as you form a path to earth. The cause is almost certainly
capacitive coupling to an ungrounded conductor. If the equipment is double
insulated it's absolutely normal to get this effect, if it's not double
insulated (i.e. it's supposed to have a ground wire) then check the earthing
and treat it with care.
Dave S
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| Ian Stirling replied to Mike Faithfull on 19 May 2004 |
New meters (digital) are only around a fiver, but if not abused,
it should be fine.
If it's two appliances, it's less likely to be a fault with the appliance.
As a basic check, take the plug out, and measure on a low-ohms range
the resistance between the earth pin (the long one) and the metal of
the appliance.
It should measure under an ohm or two.
If this is so, then it's likely that the appliance is not at fault.
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Archived message: Re: OT what is that vibrating sensation you get when you lightly touch the metal on a mains appliance? (UK DIY Home Repairs)
