Gridswitch fuse spur?

[amlu]

click minigrid modules are nice
https://www.electricalcounter.co.uk...ur+Connection+Unit+Minigrid+Module/4021078815

 

[Flanders]

click minigrid modules are nice
https://www.electricalcounter.co.uk...ur+Connection+Unit+Minigrid+Module/4021078815

Yes I do like these but I don't think they do an 8 way face place that the OP requires

 

[123]

Yes I do like these but I don't think they do an 8 way face place that the OP requires

They do a 12 and 18 way though. By the sounds of it more than 8 ways will be needed as the fuses haven't been allowed for.

 

[Risteard]

Personally I would feed the switch modules first and then the fuses. It means you aren't inserting or withdrawing a fuse into an energised carrier then if the switch is open.

 

[ipf]

Personally I would feed the switch modules first and then the fuses. It means you aren't inserting or withdrawing a fuse into an energised carrier then if the switch is open.

...open?

 

[Risteard]

...open?

If the switch is open the carrier will be de-energised. If the switch is closed it will be energised.

 

[ipf]

If the switch is open the
Sorry...misread. Maybe 'because the switch is open' would have read easier :lipsrsealed2:

 

[TJ Anderson]

No you feed to your fuse then from your fuse to the switch and then from the switch to the load. so in an 8way grid you could have 4 outgoing loads

The fuse is put in series after the switch for the reasons Risteard has said. That's why switched fused spurs are constructed in same way.

 

[Richard Burns]

I would have to say the fuse after switch scenario is probably safest but I could not be bothered to change the diagram, FCU carriers are designed to be safe to insert fuses even when energised as they are for unskilled use but no sense in increasing risk.
wire like this in that case.

 

[Flanders]

The fuse is put in series after the switch for the reasons Risteard has said. That's why switched fused spurs are constructed in same way.

Yes i do agree with you . I did write my post that way first then edited it to read the otherway around after seeing richards drawing for continuity as i felt it does not make much difference , I agree with you that industrial switched fuses are wired this way otherwise you could touch a live part of the fuse even when tured off. but with the type of fuse holders we are talking about there is no way of touching the live part of the fuse when inserting it, saying all that going to the switch first is the better way of doing it