Daisy Chained Receptacles in Conduit - 310.15(A) ?

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don_resqcapt19 said:
The rule specifies multiple receptacles. Not sure a 30 amp duplex exists, so it would be fine for one 30 amp single receptacle.
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There are 30A 3-phase receptacles, too. And I've seen plenty of portable fans, blowers, vacuums and pumps that are "cord-and-plug-connected" fed that way. Can't recall any where there was more than one off the same OCPD, but could have been, and could have been daisy chained, too.
 
infinity said:
There are advantages an disadvantegs to both methods. Boxes require support conduit bodies do not so that's one advantage to not using a box. Since you're already splicing at the receptacles why add more splices at the "T" points. You might save some wire with the boxes but will have more labor.
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There is no need to add more splices, and most times you would'nt want to splice in a T anyway.

We're just beating the T up because it came up in a derating discussion.

Jap>
 
jap said:
We're just beating the T up because it came up in a derating discussion.

Jap>
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infinity said:
LoL, beating up the T, I like that. :D
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I've gotten beat up for using tees. Made up an array of them a couple times and asked why not just use a trough? It was due to wood fiber. There had been times it got into troughs, and when there was a fire, the fiber in the trough burned up the wiring. There's a time and place for EVERYTHING!
 
Help me out folks, I thought I saw some kind of exception for more than 3 CCC when motor control wiring was in the same raceway as the motor leads. Can't find it now. :(
 
TwoBlocked said:
Help me out folks, I thought I saw some kind of exception for more than 3 CCC when motor control wiring was in the same raceway as the motor leads. Can't find it now. :(
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Might not apply to raceways? I though it did myself or maybe it has changed over time. All I can find is in art 376 for wireways. 376.22(B) in 2017 NEC doesn't make you count control conductors in a wireway for ampacity adjustment purposes, they still count towards cross sectional fill though.
 
kwired said:
Might not apply to raceways? I though it did myself or maybe it has changed over time. All I can find is in art 376 for wireways. 376.22(B) in 2017 NEC doesn't make you count control conductors in a wireway for ampacity adjustment purposes, they still count towards cross sectional fill though.
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Thanks! That must be where I saw it.
 
TwoBlocked said:
Help me out folks, I thought I saw some kind of exception for more than 3 CCC when motor control wiring was in the same raceway as the motor leads. Can't find it now. :(
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310.15(B)(3) ... Where conductors of different systems, as provided in 300.3, are installed in a common raceway or cable, the adjustment factors shown in Table 310.15(B)(3)(a) shall apply only to the number of power and lighting conductors (Articles 210, 215, 220, and 230). [310.15(C)(1) in the 2020]
 
don_resqcapt19 said:
310.15(B)(3) ... Where conductors of different systems, as provided in 300.3, are installed in a common raceway or cable, the adjustment factors shown in Table 310.15(B)(3)(a) shall apply only to the number of power and lighting conductors (Articles 210, 215, 220, and 230). [310.15(C)(1) in the 2020]
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That will do it! You don't count control or indication.
 
TwoBlocked said:
Or even this, but I am sure there are ones that would work like a tee.:

View attachment 2564852
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Never seen one with a "side entry". though for like mentioned in OP could have a "feed thru" run and one that immediately elbows down and sort of have same effectiveness.

Have seen round boxes that are explosion proof, and have four cross hubs and a center out the back hub though many those don't really have as much volume as the box pictured here has, because the small volume when I have used them usually limit splices to just EGC's as much as possible
 
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