DM2
Mechanical
- Oct 20, 2007
- 144
A number of fire panel manufactures have had their equipment tested for OSHPD seismic certification per-approval. In discussions with one manufacture, I was told that if the equipment weighs less than X pounds (20 lbs is what the person thought the value was), seismic calculations aren't required. He sighted smoke detectors as an example.
I has asked were he was getting the weight limit from as I don't see it is ASCE 7-10 (2010 edition), Chapter 13.
Can someone give me some guidance related to this?
I see Section 13.1.4 "Exemptions", has section 6.c.ii. which requires "...all of the following apply:"
[ol a]
[li] ...importance factor of 1 (fire protection has a 1.5 importance factor)[/li]
[li] ...positively attached (not sure what that actually means).[/li]
[li] Flexible connections between component...and...[/li]
[ol i]
[li]...componet weighs 400[/li]
[li]...component weighs 20 lb or less (89 N) or less or, in the case of a distributed system, 5 lb/ft (73 N/m) or less.[/li]
[/ol]
[/ol]
The device in question is an "Air Sampling Smoke Detector" that is mounted on a sheet rock wall more than 4' above the floor and weighs less than 20 lbs.
Is there some other escape clause I should be looking at?
Regards,
DM
"Real world Knowledge isn't dropped from a parachute in the sky but rather acquired in tiny increments from a variety of sources including panic and curiosity."
I has asked were he was getting the weight limit from as I don't see it is ASCE 7-10 (2010 edition), Chapter 13.
Can someone give me some guidance related to this?
I see Section 13.1.4 "Exemptions", has section 6.c.ii. which requires "...all of the following apply:"
[ol a]
[li] ...importance factor of 1 (fire protection has a 1.5 importance factor)[/li]
[li] ...positively attached (not sure what that actually means).[/li]
[li] Flexible connections between component...and...[/li]
[ol i]
[li]...componet weighs 400[/li]
[li]...component weighs 20 lb or less (89 N) or less or, in the case of a distributed system, 5 lb/ft (73 N/m) or less.[/li]
[/ol]
[/ol]
The device in question is an "Air Sampling Smoke Detector" that is mounted on a sheet rock wall more than 4' above the floor and weighs less than 20 lbs.
Is there some other escape clause I should be looking at?
Regards,
DM
"Real world Knowledge isn't dropped from a parachute in the sky but rather acquired in tiny increments from a variety of sources including panic and curiosity."