2 Hour Cabling

[Alwayslearningelec]

Anyone know of code where 2 hour rated cable not required in sprinkler protected areas? Not sure of it is just a NYC code.

 

[ron]

I don't quite understand your question, but does this help answer it?

700.10(D)(2) Feeder-Circuit Wiring.
Feeder-circuit wiring shall meet one of the following conditions:
(1) The cable or raceway is installed in spaces or areas that are fully protected by an approved automatic fire protection system.
(2) The cable or raceway is protected by a listed electrical circuit protective system with a minimum 2-hour fire rating.
(3) The cable or raceway is a listed fire-resistive cable system with a minimum 2-hour fire rating.
(4) The cable or raceway is protected by a listed fire-rated assembly that has a minimum fire rating of 2 hours and contains only emergency circuits.
(5) The cable or raceway is encased in a minimum of 50 mm (2 in.) of concrete.

 

[Alwayslearningelec]

I don't quite understand your question, but does this help answer it?

700.10(D)(2) Feeder-Circuit Wiring.
Feeder-circuit wiring shall meet one of the following conditions:
(1) The cable or raceway is installed in spaces or areas that are fully protected by an approved automatic fire protection system.
(2) The cable or raceway is protected by a listed electrical circuit protective system with a minimum 2-hour fire rating.
(3) The cable or raceway is a listed fire-resistive cable system with a minimum 2-hour fire rating.
(4) The cable or raceway is protected by a listed fire-rated assembly that has a minimum fire rating of 2 hours and contains only emergency circuits.
(5) The cable or raceway is encased in a minimum of 50 mm (2 in.) of concrete.

Thanks. I asking if you need to run MI cable in an area that is fully protected by sprinklers?

 

[infinity]

Not if you comply with (1) in Ron's post.

 

[gadfly56]

Thanks. I asking if you need to run MI cable in an area that is fully protected by sprinklers?

Are you talking about fire alarm cable or feeder cable, as Ron assumed?

 

[Alwayslearningelec]

It's actually low voltage two different circuits.
1. One is control18/2 for a VFD
2. One is power circuit from a panel.

 

[gadfly56]

It's actually low voltage two different circuits.
1. One is control18/2 for a VFD
2. One is power circuit from a panel.

Is this at all related to fire alarm? That's where my expertise ends.

 

[Alwayslearningelec]

no