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Can power supplies damage socket internals?

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I recently replaced a double 13 Amp. switched socket that had blown up inside. Black marks were evident by the switch on the front face plate. The D.P switches were completely ruined by an explosion. This has now apparently happened to the replacement socket. The householder reported that the socket was permanently live even with the switches turned off. The left hand outlet was showing a healthy 240 Volts and correct polarity, but the right hand socket was showing a missing Neutral.

This double socket supplies two armchairs with motors to adjust them to a comfortable position. The two chairs have power supplies that supply the chairs at 12 Volts I believe. They are connected through a 4 way trailing socket.

Is it possible that the power supplies have electronic circuitry that causes a high Voltage when switched off that could cause damage to a supply mains socket internals?

Z.

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  • 0 in reply to Arman Ashfaq

    Did you? And what did they do for you - with out more info this looks like an advert

    Mike.

  • 0 in reply to mapj1

    I am posting here just to get the post at the bottom of the list

    Update. I supplied a 13 Amp plug with no flex that contains a surge arrestor circuit. This is plugged into a 4 way trailing socket. The customer has also installed the two chairs' power supplies  into a surge arrestor 4 way training socket. I advised that he use both. Since then I have had no reports of any problems. I have not had a chance to examine the type of chair power supplies yet due to time constraints and other matters.

    Z.

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