Reduced low voltage 110V 16A socket circuits

It really depends on what size transformer the client is prepared to pay for.

How may sockets have you been asked to fit and where - all side by side or dotted about the room, as if for machines.

I'd be very wary of a client that has 'no idea' why they want the sockets; I bet someone does, because someone will have asked for them, and you need their input if they are not to be in the wrong place or in some other way inadequate.

Generally you do not want more than a 20A breaker feeding circuits with 16A sockets, and if you do not know the load you should probably cost to cable it as if there are no more than 2 sockets pre breaker, just so that things do not trip off, and 2.5mm is not a bad size cable to work with. However, as above, the total load will be limited by the source of 110V.

Mike.

You could show the client how much the installation would cost with no allowance for diversity. Then after they've choked on their coffee, you might be able to have a productive conversation about what diversity they will consider.

Many thanks for the responses. The proposed locations are generally 2 sockets located together in a large workshop so 2 per circuit seems logical.

One simplest of solutions:


Perhaps check these guys out (Below) or someone similar, buy an appropriate 110V Transformer unit and run  1 x 2.5mm, 3 core 110V (Yellow) cable to each required point (a 2.5mm cable per 110V Plug), clipped direct ..... easy solution, and would allow some variation where if you have more points than supplies - you can manually decide where you plug in/unplug  those points where you actually need/don't need power. 


You'll need to find out about the KVa requirement. I'd suggest a 10KVa might be enough? Especially if you have three phase available. If there's a limitation of power available, Those students that need power - could go and plug in their bays' 16Amp plug and the number of bays in use would then be limited by the number of 110V plugs available on the transformer......

https://www.blakley.co.uk/search?search_api_views_fulltext=110V transformers