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Just had a look at a manual for an Invertek E3 drive, and it suggests gG fuses or MCBs in the supply. No mention of using a thermal overload, and I've never seen it done, and I've seen and set up hundreds of drives. It's not relevant to your problem though, the fusing is only to protect the...

In an industrial setting? Doesn't feel right, even though, in truth, there's nothing technically wrong with it.

16 months by my calculations.....but your sentiment still applies:)

Just to emphasise Bernard's points above, I've commissioned many industrial control systems where network cables (Profibus generally, which is RS485 based) are in the same trunkings for long parallel distances as motor cables being driven from variable speed drives. Never had a problem, as long...

Presume you are doing this under Building Regs approval? In which case, get an electrician involved now, so you can get a completion certificate when the time comes. They may be happy for you to do some of the work, but they will want to know what and how you have done it, because they will...

Just to clarify, you don't have to inform building control but you do have to comply with part P. Have a read of what part P actually says, not an internet summary of it. It's free to download. Anyway, a Happy New Year to you.

I did....must be that post-NYE fug...corrected now.

Just because it isn't notifiable, doesn't mean it isn't covered by Part P of the Building Regulations. Here's a link to IEE website with a download for a minor works certificate. Have a look at the essential tests. Can you do them? https://electrical.theiet.org/bs-7671/model-forms/

I would say this is an alteration to an existing circuit, so is not subject to notification. No need for capping. How are you planning to test it. An electrician would complete a minor works certificate. What will you do? Nothing to stop you doing the same, assuming you have the required...

I would have a double pole switch at the house end, so that if you have any faults on the SWA which trip the RCD, you can isolate it and keep the house power on. Earthing nuts are easier for the layman than banjos on SWA glands. Testing?

Mennekes supply all combinations of colours and pins, I used them for some 5 pin blue plugs and sockets recently. That was for 200V line voltage.

Pipe lagging, like you might use for insulating heating pipes.

All those insulation companies DGAF about covering electric cables.

If you imagine a clock face, and the HV winding voltage phasor is at 12 o'clock, then the 11 indicates the LV winding voltage phasor is at 11 o'clock. Assume rotation is anti-clockwise which is IEC convention, then LV is 330 degrees behind HV phasor.

LSOF? LSF, LSZH, LSOH are the usual acronyms. Apart from that, nothing to add, sorry. As you were.

Nothing wrong with running the cable in that way, but you need to be sure the socket you are spurring off is not already a spur from a ring. You also need to keep your cable route within the safe zone created by your existing and new socket.

Where would you use self amalgamating tape to do any sort of electrical repair in a domestic setting?

Ok. The manufacturer of the transformer was perfectly happy with its use in this application. I'm not a transformer expert. What would a weld across the lamination do.

Happily for me, I procured the lights and transformer as a package from a single supplier so they have replaced the failed fittings at their cost.

Yes, switching on secondary side. A wound transformer. When I spoke to the transformer manufacturer, they said that at the flux densities they design to, there shouldn't be any harmonics generated by the transformer core. Transformer design is not my specialist subject by a long chalk, so I...