Two different single phase circuits in one metal pipe

[mustafa]

is it accepted to install two single phase (220 V) with (different color code) in the same metal conduit? code references please

 

[tom baker]

Its done all the time, subject to wire fill, derating.
Why do you feel its not allowed?
For the code reference..I need to ponder a bit.

 

[jusme123]

300.3(C)(1)

C) Conductors of Different Systems.
(1) 1000 Volts, Nominal, or Less. Conductors of ac and dc circuits, rated 1000 volts, nominal, or less, shall be permitted to occupy the same equipment wiring enclosure, cable, or raceway. All conductors shall have an insulation rating equal to at least the maximum circuit voltage applied to any conductor within the enclosure, cable, or raceway. Secondary wiring to electric-discharge lamps of 1000 volts or less, if insulated for the secondary voltage involved, shall be permitted to occupy the same luminaire, sign, or outline lighting enclosure as the branch-circuit conductors.

 

[Little Bill]

300.3(C)(1)

C) Conductors of Different Systems.
(1) 1000 Volts, Nominal, or Less. Conductors of ac and dc circuits, rated 1000 volts, nominal, or less, shall be permitted to occupy the same equipment wiring enclosure, cable, or raceway. All conductors shall have an insulation rating equal to at least the maximum circuit voltage applied to any conductor within the enclosure, cable, or raceway. Secondary wiring to electric-discharge lamps of 1000 volts or less, if insulated for the secondary voltage involved, shall be permitted to occupy the same luminaire, sign, or outline lighting enclosure as the branch-circuit conductors.

Not exactly the code for what was asked. This one is for different systems such as DC and AC.
I don't have the code handy but if it doesn't specifically say not to, it is allowed. Certainly conductors of the same source but different circuits are allowed, it's done everyday.

 

[tom baker]

Little bill, same here. Not prohibited, so allowed, with conditions, lots of them.

 

[jusme123]

Not exactly the code for what was asked. This one is for different systems such as DC and AC.
I don't have the code handy but if it doesn't specifically say not to, it is allowed. Certainly conductors of the same source but different circuits are allowed, it's done everyday.

Good catch bill , my mind went to that section

 

[petersonra]

Not exactly the code for what was asked. This one is for different systems such as DC and AC.
I don't have the code handy but if it doesn't specifically say not to, it is allowed. Certainly conductors of the same source but different circuits are allowed, it's done everyday.

I would take it as meaning it also applies to different systems as in SDS's.

 

[kwired]

Not exactly the code for what was asked. This one is for different systems such as DC and AC.
I don't have the code handy but if it doesn't specifically say not to, it is allowed. Certainly conductors of the same source but different circuits are allowed, it's done everyday.

It not for just AC and DC in same raceway, you could have a 480 volt AC and 120 volt AC circuit (they are almost always from separate systems) in the same raceway. Design decisions may commonly lessen how often that may happen.

 

[Little Bill]

It not for just AC and DC in same raceway, you could have a 480 volt AC and 120 volt AC circuit (they are almost always from separate systems) in the same raceway. Design decisions may commonly lessen how often that may happen.

If you notice, I said "such as" not "just". That was just one example.