Discuss lighting issue in the UK Electrical Forum area at ElectriciansForums.net

I have a table lamp with inbuilt touch sensitive switching/dimmer. It comes on every time the computer is turned on and every time the scanner is used, they are in the same room. Earthing is good (PME). I have got used to turning it off, one two or three taps depending on how bright it is. I have always assumed it is transients much harder to get rid off than ghosts. One day I will get around to turning it off at the socket.

Why put off until tomorrow what you can put off 'till next week.
 
I think he means that it shouldn't be too old, and be fit for purpose. Perfectly reasonable.

In the current climate of austerity, i can't afford to change my old cover, I may never be able to!!!

How often does tel get a new bed-cover for himself? and how can he afford it??
 
Touch switches that replace ordinary plate switches rarely use a neutral connection. As a consequence the electronics is often prone to false triggering by mains bourne transients or strong radiated RFI. There are a couple of things you can do to minimise this effect:- 1) Ensure the CPC is connected to the metal back-box. 2) Connect a mains rated CR (typically 0.1uF in series with 100Ω) snubber across the switch terminals. If the touch switch is currently mounted in a plastic cavity wall box, try changing the standard plastic box for the less common foil lined or metal type which has a CPC termination connected to the foil.
 
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