I've been perusing BS7671, and it contains a lot of useful information, however it misses a few things which are perhaps learnt by experience. For instance, for T&E there's a difference in derating depending on where in the stud wall it runs (against the plasterboard or in the insulation). It's unclear if I take cables through a stud wall how I should attach them. I obviously won't be hammering a cable clip into the plasterboard (do I leave the cable loose in this situation, pressed against the wall by the insulation?). I have a whole bunch of questions like that, way too many to ask on a forum, perhaps more to do with 'normal practice' than the regulations themselves.
I haven't read BS7671 cover-to-cover yet, but in any case it hardly seems the best way to learn, and contains a lot of information not relevant to house wiring (swimming pools, saunas, operating rooms, 3-phase and so on).
So I'm looking for recommended reading materials, with focus on domestic. I just ordered the site guide, and am hoping that has a few more pictures than the wiring regs! Any other books I should look at? I'd also like to know some of theory behind the numbers in some of the tables, e.g. why do RCB disconnection times, vary between the different earthing systems and so on...
regards,
Simon.
I haven't read BS7671 cover-to-cover yet, but in any case it hardly seems the best way to learn, and contains a lot of information not relevant to house wiring (swimming pools, saunas, operating rooms, 3-phase and so on).
So I'm looking for recommended reading materials, with focus on domestic. I just ordered the site guide, and am hoping that has a few more pictures than the wiring regs! Any other books I should look at? I'd also like to know some of theory behind the numbers in some of the tables, e.g. why do RCB disconnection times, vary between the different earthing systems and so on...
regards,
Simon.