Chris Pearson:JPCoetzee:
Some of them have roughly-tacked together wooden back boxes and these should be metal (!).No!
If you put in metal back boxes, you potentially have exposed conductive parts because of the screws unless the switches are of a type which conceal them.
The wooden back boxes may be as rough as a badger's ars*, but so long as they are reasonably sound, they are unlikely to present a danger. If some of them are roughly tacked together, are others beautifully joined, or what? ?
Heh, no. Some of them already have metal back boxes. I guess the recommendation for a metal back box rather than wooden is to make the whole assembly more structurally sound.
I may put a shallow plastic surface box instead, if that can work. I will be using nylon screws everywhere.
Chris Pearson:JPCoetzee:
Some of them have roughly-tacked together wooden back boxes and these should be metal (!).No!
If you put in metal back boxes, you potentially have exposed conductive parts because of the screws unless the switches are of a type which conceal them.
The wooden back boxes may be as rough as a badger's ars*, but so long as they are reasonably sound, they are unlikely to present a danger. If some of them are roughly tacked together, are others beautifully joined, or what? ?
Heh, no. Some of them already have metal back boxes. I guess the recommendation for a metal back box rather than wooden is to make the whole assembly more structurally sound.
I may put a shallow plastic surface box instead, if that can work. I will be using nylon screws everywhere.
We're about to take you to the IET registration website. Don't worry though, you'll be sent straight back to the community after completing the registration.
Continue to the IET registration site