Shop made extension cords

[safetysullivan]

Can a normal 4 gain electrical box with knock-out and screw holes be used for a shop made extension cord.

 

[roger]

Not if it's floating.

OSHA doesn't allow any box intended for permanent installations on "job assembled cords"

http://www.osha.gov/pls/oshaweb/owad...ONS&p_id=20579

2. The cord set must meet all applicable requirements of Subpart K. For example, the assembly must be marked appropriately (1926.403(g)); boxes intended for use in a permanent installation may not be used (1926.403(b)(1)(i)); cords must be connected to devices and fittings so as to provide strain relief (1926.405(g)(2)(iv)); cords passing through holes in enclosures must be protected by bushings or fittings designed for the purpose (1926.405(g)(2)(v)- fittings designed to fasten cables to metal boxes are not acceptable); and no grounded conductor shall be attached to any terminal or lead so as to reverse designated polarity (1926.404(a)(2)).

and a follw up

http://www.osha.gov/pls/oshaweb/owad...ONS&p_id=20709

Roger

 

[Ponchik]

As Roger mentioned it is not allowed per OSHA, but the shop made extension cords with the proper strain reliefs, double gang 4S box with a double duplex GFCI protected works the best. :happyyes:

 

[kwired]

As Roger mentioned it is not allowed per OSHA, but the shop made extension cords with the proper strain reliefs, double gang 4S box with a double duplex GFCI protected works the best. :happyyes:

Is cheapest way to do it, I've seen many that have unused KO's pushed in or missing after spending some time in use and would rather see an aluminum bell box with threaded entries at the very least, those also not going to meet OSHA requirements though.

 

[Jraef]

Not only OSHA, I've had them rejected during a Fire Marshal inspection as well. We had to unplug everything attached to them and disassemble the boxes in front of him before he would sign off on it.

 

[kwired]

Not only OSHA, I've had them rejected during a Fire Marshal inspection as well. We had to unplug everything attached to them and disassemble the boxes in front of him before he would sign off on it.

And not replace with something acceptable? Sounds like it may get reassembled once he leaves:angel:

 

[Ponchik]

And not replace with something acceptable? Sounds like it may get reassembled once he leaves:angel:

Of course he did not assemble it back together. :happyyes:

On another note, you can't throw away good extension cords every time the ends get messed up.

 

[winnie]

What about:
http://khindustries.com/power/portable-outlet-boxes/portable-electrical-outlet-boxes/
?

Simply too expensive?

-Jon

 

[roger]

On another note, you can't throw away good extension cords every time the ends get messed up.

You can repair a cord with listed parts, you can not use a 4"sq box.

Roger

 

[Ponchik]

You can repair a cord with listed parts, you can not use a 4"sq box.

Roger

There is lots of things I don't know and "listed parts for extension cord repair" is one of them. Do you have a link?

 

[MAC702]

You can repair a cord with listed parts, you can not use a 4"sq box.

Listed for repairing cords is one thing.

OSHA allowing repaired cords on a jobsite is another.

 

[roger]

There is lots of things I don't know and "listed parts for extension cord repair" is one of them. Do you have a link?

CLICK HERE and look at the certification info.

Listed for repairing cords is one thing.

OSHA allowing repaired cords on a jobsite is another.

Are you under the impression a cord cap can not legally be replaced on an extension cord?

CLICK HERE

Roger

 

[MAC702]

Are you under the impression a cord cap can not legally be replaced on an extension cord?

No. I haven't needed to meet OSHA standards in a very long time, and don't bother to know them anymore.

But the fact remains that it is possible that OSHA or MSHA or some other authority can disallow something that is elsewhere allowed, so these allowances are not transitive. But I see where my post was not clear.