On Mon, 10 Jan 2011 10:39:57 -0800 (PST), Joe wrote:

On Jan 9, 9:26*pm, " wrote:
On Jan 9, 7:21*pm, "JoeSpareBedroom"
wrote:





wrote in message

...

We recently had one burnt electrical outlet at our office. The
appliance plug is also burnt as well. All the outlets at our office is
rated at 20Amps and have fuse protection. The fuse did not trip.
Anyone has a clue why the outlet and the plug are burnt? I am planning
to just replace the burnt outlets and the appliance plug, but I really
prefer to know what caused the burning in the first place.

Here are 2 photos showing the plug and the outlet:

http://www.flickr.com/photos/54230006@N07/5341105173/
http://www.flickr.com/photos/54230006@N07/5341718398/

Thanks

What types of devices to those plugs belong to? Not the outlets. The plugs.

It is connected to a power conditioner which powers some audio
devices. The input to the power conditioner shows it is rated up to
30Amps but we actually do not have that many devices being powered by
this conditioner. So I doubt it is drawing the full 30Amps. Also the
20Amp building fuse would have tripped if the power drain was higher
than 20Amps.

Your outlets are 15 amp, not 20. The correct outlet will have a T-
shape plug hole on the hot side. If the breaker is 20 amp and the
wiring is 12 ga, somebody really screwed up.

Why do you believe that he needs 20A outlets? The appliance obviously has a
15A plug on it, so it's not intended for more than 15A.