Low voltage tension wire lighting system

[polo1]

Hi, anyone have any experince of these? I understand that a Type C breaker may be best? I've been asked to install a system of 5 x 50w on a 300va transformer witha run of approx 10m from the board to the transformer.

Any recommendations on make, size & type of breaker etc?

Regards

 

[Knobhead]

If you allow *6 times for inrush on a 300VA that’s 7.8A. A type B 6A should handle that with no problem. Inrush is the first few cycles.

 

[trev]

I don't like these systems meself but if it's what the client wants then shove it in just like Tony said

 

[polo1]

Thanks Tony. Believe it or not, I've had an email from the client - they want 10 of these....yes, 10 x 5, 50w units! It's a museum and they are apparently to be used for exhibit lighting.

Is there likely to be a problem in having more than one unit on a suitably sized circuit? ( I don't yet know what the switching arrangements are to be).

Regards

 

[Knobhead]

Spilt as required then. Several MCB’s make sense.

Switch that lot in one go then a single MCB won’t cope.

 

[Flyingsparks]

As Tony said, split up the circuits as much as possible to avoid nuisance tripping on start up.

We did a job similar to this for the National Trust a couple of years ago and had the same problem, so ran in some extra feeds and switched each transformer seperately.