Is that ok to leaving it as is?
wiring receptacle dryer 240v
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asked Oct 16 "17 in ~ 15:47
Benjamin HodgeBenjamin Hodge
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Replace it v a homerun the 10/3 and also a NEMA 14-30. It"s the only way to it is in sure.The initial installer to be a enormous cheapskate with no expertise of the NEC -- also if the install was old enough to it is in grandfathered in under NEC 250.140 and also friends, that still was a violation at the time of download as utilizing an uninsulated wire for the neutral (grounded conductor) is only allowed when using form SE cable, not kind NM as the original installer did:
You are watching: 10/2 wire for dryer
50.140 Frames of Ranges and Clothes Dryers. Frames of electrical ranges, wall-mounted ovens, counter-mounted cooking units, clothing dryers, and also outlet or junction boxes that are part of the circuit for these appliances chandelier be linked to the equipment grounding conductor in the manner specified by 250.134 or 250.138.
Exception: for existing branch-circuit installations only, wherein an equipment grounding conductor is not current in the outlet or junction box, the frames of electrical ranges, wall-mounted ovens, counter-mounted cooking units, apparel dryers, and also outlet or junction boxes that are component of the circuit because that these appliances shall be permitted to be linked to the base circuit conductor if all the following problems are met.
(1) The supply circuit is 120/240-volt, single-phase, 3-wire; or 208Y/120-volt obtained from a 3-phase, 4-wire, wye-connected system.
(2) The grounded conductor is not smaller sized than 10 AWG copper or 8 AWG aluminum.
(3) The base conductor is insulated, or the base conductor is uninsulated and component of a kind SE service-entrance cable and the branch circuit originates at the business equipment.
(4) ground connection contacts that receptacles furnished as component of the equipment are external inspection to the equipment.
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So, replace this abomination with a fresh homerun the 10/3 and a NEMA 14-30 receptacle -- you"ll have actually to readjust the strength cord on your dryer come a four-prong one, yet that"s a small price come pay because that never having actually to worry about getting bit by her dryer again.