Grounding 3-Wire 220 v in a metal junction box?

[DanOtn]

I'm moving a clothes dryer about 7 feet. The existing Cable is 8-3 (red, black & white) with no ground wire.

I wanted to use a metal junction box but I need to ground it.

The dryer is grounded by using a jumper wire from the chassis to the neutral.

Any reason I can't use that same method to ground the metal junction box?

Thanks

 

[Norcal]

That method is now only allowed for existing installations, if you wish to move it you will have to run a 3-wire w/ ground NM cable from the panel to the new location, & use a 4-wire receptacle, as it will have to be brought up to current code.

 

[wyliesdiesels]

not permissible to extend 3-wire dryer and stove circuits anymore. run a new circuit which will be safer than the bonded neutral

 

[magic_garage]

not permissible to extend 3-wire dryer and stove circuits anymore. run a new circuit which will be safer than the bonded neutral

If you could get a ground wire from the panel to the new location, can you extend those 3-wires to the new location as well and use the old spot a junction-box/splice-point?


Thanks!

 

[DanOtn]

Thanks everyone for the replies.
I decided to leave it where it is.
Thanks again.

 

[Zeke]

If you could get a ground wire from the panel to the new location, can you extend those 3-wires to the new location as well and use the old spot a junction-box/splice-point?


Thanks!

All wires need to be in the same conduit or in the same cable. So a sister ground wire is not allowed. The OP said he had cable, not conduit so he's better off not touching it as he concluded.