Author Topic: Does yours glow RED?  (Read 1094 times)

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Offline John Candy

Re: Does yours glow RED?
« Reply #15 on: Feb 11 2019 11:41 »
Ralph,
I have just checked and between L and N the pd is 244.7AC  and between GND to either L or N is 0V.... I don't have 3-phase here so no danger of 400V+!!!

Just back from PO to send package to ANTEX.

Regards,
John.
My fellow Members, ask not what your Society can do for you, ask what you can do for your Society.

Offline cabbage

Re: Does yours glow RED?
« Reply #16 on: Feb 11 2019 12:16 »
Well better safe than crispy!!!

Regards

Ralph

Offline John Candy

Re: Does yours glow RED?
« Reply #17 on: Feb 11 2019 12:36 »
Quote
Well better safe than crispy!!!

Indeed!
I have experienced a 415V shock which threw me half way across the room..... that was about 30 years ago when we had the hotel in the Lake District........ I didn't suffer any ill effects but was much younger (and healthier) then!

Regards,
John.
My fellow Members, ask not what your Society can do for you, ask what you can do for your Society.

Offline IanT

Re: Does yours glow RED?
« Reply #18 on: Feb 11 2019 13:40 »
As a young computer service engineer - I repaired a large power supply and got the computer back online (a high priority) but had to screw some perforated screening back on afterwards. My screwdriver slipped and went into the PSU - and there was a very large blue flash and I was thrown back against a wall. On inspection, the screwdriver had welded itself to the screen but the computer hadn't noticed and was still running. I went back a few days later for a scheduled maintenance and hacksawed it off. I never mentioned this to anyone at the time but have sometimes wondered if anyone else noticed the handle sticking out the back of the cabinet and wondered what it was....   :-)

Regards,

IanT
Nothing's ever Easy - At least the first time around.

Offline Peaky 556

Re: Does yours glow RED?
« Reply #19 on: Feb 12 2019 00:00 »
Ralph,
I have just checked and between L and N the pd is 244.7AC  and between GND to either L or N is 0V....
Regards,
John.
John if taking you literally here and there really is 0V between L and GND then you would appear to have an earth fault, ie the earth is not connected just takes up the potential of the wire you are measuring it against. 
I wouldn’t use that socket, and furthermore buy yourself one of those natty little tester plugs that light up with three neons if there are no faults or transposed wires.
If you don’t know what I’m talking about I’ll send a pic of mine tomorrow.
Rgds, Tim

Offline John Candy

Re: Does yours glow RED?
« Reply #20 on: Feb 12 2019 01:22 »
Tim,

Actually, the reading was around 28V L to GND and 6V N to GND but in context of what we were discussing (400+) I treated as being negligible.
Yes, I have one of those tester plugs (bought it about 30 years ago) and did test all the sockets when we bought the house in 2002.  The distribution unit is of the RCCB type and trips whenever a bulb blows or the kettle element goes out with a flash and a bang!

Regards,
John.
My fellow Members, ask not what your Society can do for you, ask what you can do for your Society.