yellowwirenut
Member
Does Fire Alarm hve to be in a raceway in an elevator hoistway?
Fire Alarm Question
- Thread starter yellowwirenut
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peter d
Senior Member
- Location
- New England
Re: Fire Alarm Question
Yes. NEC 760.52(B)(3). I am making the assumption that these are power limited cables.
However, check with your fire marshall and local codes, as fire alarm requirements vary drastically from state to state.
Yes. NEC 760.52(B)(3). I am making the assumption that these are power limited cables.
However, check with your fire marshall and local codes, as fire alarm requirements vary drastically from state to state.
yellowwirenut
Member
Re: Fire Alarm Question
760.52(B)(3) Exception:
As Provided for in 620.21 for elevators and similar equipment.
620.21(A)(1)(b)
Cables used in Class 2 power-limited circuits shallbe permitted to be installed between risers and signal equipment and operating devices, provided the cables are supported and protected from physical damage and are of a jacketed and flame-retardent type.
I'm not saying that this proves my point, but doesn't the code make it sound like it is legal?
Tony still
[ January 23, 2005, 11:25 PM: Message edited by: yellowwirenut ]
760.52(B)(3) Exception:
As Provided for in 620.21 for elevators and similar equipment.
620.21(A)(1)(b)
Cables used in Class 2 power-limited circuits shallbe permitted to be installed between risers and signal equipment and operating devices, provided the cables are supported and protected from physical damage and are of a jacketed and flame-retardent type.
I'm not saying that this proves my point, but doesn't the code make it sound like it is legal?
Tony still
[ January 23, 2005, 11:25 PM: Message edited by: yellowwirenut ]
romex jockey
Senior Member
- Location
- Vermont
- Occupation
- electrician
Re: Fire Alarm Question
methinks this dependent on a number of factors, one being shaft construction, i.e.- of 'combustible' wood frame & sheetrock vs. cement block....
that might be a 101 call...
it is my understanding that a heat set 20 deg lower than a sprinkler head @ the shaft top permits the car to be recalled before being drenched
but that's also controversial due to the firemans override, shunt tripping the motor out, and the many elevator committees from state to state...
stairs start looking a whole lot better once one really digs into this one....
methinks this dependent on a number of factors, one being shaft construction, i.e.- of 'combustible' wood frame & sheetrock vs. cement block....
that might be a 101 call...
it is my understanding that a heat set 20 deg lower than a sprinkler head @ the shaft top permits the car to be recalled before being drenched
but that's also controversial due to the firemans override, shunt tripping the motor out, and the many elevator committees from state to state...
stairs start looking a whole lot better once one really digs into this one....
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