Open Splices

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royp

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I know there is some reference in the NEC to open splices but can't find it. I am specifically looking for the prohibition on making a splice without some sort of listed box or protection device (besides a wire nut). Thanks.
 
300.15
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Are these splices on conductors of power or lighting circuits?

I agree with 480sparky's reference for gerneral wiring, but class 2 and 3 circuits as well as communiction circuits aren't required to meet the requirements of 300.15 unless specifically referenced in their related Articles.

Just thought I would put that out there.;)

Chris
 
Along with the other comments I will mention that open splices are allowed on power circuits on construction sites. 590.4(G).
 
480sparky said:
Until OSHA shows up. :mad:
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If you got fined for that you should have fput up a stink, open splices are allowed.

The folowing from OSHA 1926

Temporary wiring -

1926.405(a)(2)(i)

Scope. The provisions of paragraph (a)(2) of this section apply to temporary electrical power and lighting wiring methods which may be of a class less than would be required for a permanent installation. Except as specifically modified in paragraph (a)(2) of this section, all other requirements of this subpart for permanent wiring shall apply to temporary wiring installations. Temporary wiring shall be removed immediately upon completion of construction or the purpose for which the wiring was installed.
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1926.405(a)(2)(ii)(B)

Branch circuits shall originate in a power outlet or panelboard. Conductors shall be run as multiconductor cord or cable assemblies or open conductors, or shall be run in raceways. All conductors shall be protected by overcurrent devices at their ampacity. Runs of open conductors shall be located where the conductors will not be subject to physical damage, and the conductors shall be fastened at intervals not exceeding 10 feet (3.05 m). No branch-circuit conductors shall be laid on the floor. Each branch circuit that supplies receptacles or fixed equipment shall contain a separate equipment grounding conductor if the branch circuit is run as open conductors.
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1926.405(a)(2)(ii)(H)

A box shall be used wherever a change is made to a raceway system or a cable system which is metal clad or metal sheathed.
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iwire said:
If you got fined for that you should have fput up a stink, open splices are allowed.

The folowing from OSHA 1926
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Didn't get fined, but was told they needed to be in a jbox. It was only one splice, so it was easier to get out a 1900 & cover.
 
Open Splice

Open Splice

It was a burglar alarm system with wires stapled to the ceiilng drywall with wirenuts connecting the four conductors of 22awg wire and continuing on.
 
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