Fuse Box

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Alwayslearningelec

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Has anyone ever seen this before? Is this just a splice or is it an actual fuse?

I need to replace the branch wiring from the box to the light which goes about 10'.

It is 277V.

Would I need to go all the back to the source panel and deenergize or could I disconnect power at this box/fuses without having to do that?

Thanks.

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Almost looks like a fused buss plug, but the engineer is showing conduit? Maybe a cut and paste of something else, maybe too lazy to find the correct drawing? Don’t know what a “typical 12”x12x6” fuse box would be? Never heard of such.
 
I've not worked with these, do not know the relevant code, and do not know the best materials to use, but these sound like 'street light connectors'. These are tap connectors which can actually have a fuse in the connector itself.

See, for example https://assets.gordonelectricsupply.com/datasheets/ts/Ilsco_00019_403_CAT.pdf

But aside from being familiar enough with the concept to know the right term to search, I can't tell you any more.

-Jon
 
winnie said:
I've not worked with these, do not know the relevant code, and do not know the best materials to use, but these sound like 'street light connectors'. These are tap connectors which can actually have a fuse in the connector itself.

See, for example https://assets.gordonelectricsupply.com/datasheets/ts/Ilsco_00019_403_CAT.pdf

But aside from being familiar enough with the concept to know the right term to search, I can't tell you any more.

-Jon
Click to expand...
That was my thought. I don't do street lighting for but I also don't think they are rated as a branch circuit device, just a supplemental overcurrent protection device? If so this is a misuse of the product or the incoming line isn't actually a "feeder".
 
hillbilly1 said:
Almost looks like a fused buss plug, but the engineer is showing conduit? Maybe a cut and paste of something else, maybe too lazy to find the correct drawing? Don’t know what a “typical 12”x12x6” fuse box would be? Never heard of such.
Click to expand...
Typical means this setup/box exist many other locations.
 
winnie said:
I've not worked with these, do not know the relevant code, and do not know the best materials to use, but these sound like 'street light connectors'. These are tap connectors which can actually have a fuse in the connector itself.

See, for example https://assets.gordonelectricsupply.com/datasheets/ts/Ilsco_00019_403_CAT.pdf

But aside from being familiar enough with the concept to know the right term to search, I can't tell you any more.

-Jon
Click to expand...
So with that said would power still need to be de-energized down at the PANEL feeding this box and lights are the de-energizing could take place at that fuse/splice......if it's actually a fuse? It is 277v.
 
Alwayslearningelec said:
So with that said would power still need to be de-energized down at the PANEL feeding this box and lights are the de-energizing could take place at that fuse/splice......if it's actually a fuse? It is 277v.
Click to expand...

Remember that I am guessing about the 'fused taps', but if they are what I think they are, I would not consider them the equivalent of a dead front operated switch, able to safely disconnect the downstream circuit and leave no exposed high voltage. Therefore I would shut down from the panel prior to working on these.

-Jon
 
Pretty much the same answers as you saw on the 1st post Aug 29th
Job still pending ??
 
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