UPDATE!!!! There are additional cables that are listed under the FHIT portion of UL 2196. We’ve reviewed all the products listed under this category and are not advocating any particular cable, but from a life safety system installation perspective, the most interesting cable that we’ve seen involves a two conductor, 14 or 16 gauge, [Read More]
Simultaneous Elevator Recall Activation
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I recently received a good question through the comment section regarding one of our elevator recall blogs. The question was: Is it proper to use one addressable fire input into an elevator recall point then parallel out of this point into another separate elevator controller recall input? A: If separate controllers handle cars in the [Read More]
Applying Common Sense to Intelligibility
If you’re reading this blog, you’ve no doubt heard about and know what the definition of intelligibility is, but may not be sure of how to achieve it. Most of the time, the quest for intelligibility is met with “It depends…”. That is true, but more often than not, that applies to unique situations. Since [Read More]
Can I put more than one sprinkler valve monitor on a single point?
Physically, you can obviously put the sprinkler devices on the same addressable circuit if there’s capacity on it. If you have a non-addressable fire alarm system or want to combine a number of valves onto a single addressable module, the valves must annunciate distictly if they have a dissimilar function. In other words, if approved by [Read More]
High Rise Fire Safety in Chicago
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The Chicago High Rise Ordinance was established in 1975 to ensure that occupants of buildings eighty feet and taller had a reasonable amount of protection from smoke and fire while egressing the building or waiting in place. It is comprised of a number of codes found in different chapters of the Chicago Building Code (CBC). However, the [Read More]
Elevator Code Compliance
When providing a scope of work for incorporation an existing elevator bank with an existing fire alarm system, which you may need to do within the next year to keep complaint with the current Chicago elevator code, first ensure the elevator’s emergency operation can be controlled automatically. Chicago adopted ASME 17.3 – 2005 with variations [Read More]
CI Cable Is No Longer Listed For Two Hour Survivability…….Now What?
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CI lost its UL 2196 listing in September 2012, so any installation that calls for a UL listed two hour survivability rating can’t use CI cable manufactured after then. UL states that CI cable manufactured before then was made to standards appropriate at the time so they recommend that any projects that are under way [Read More]
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