Back in 2012, UL delisted all previously approved CI/CIC cables after it determined that the cables could not actually withstand attack by fire for 2 hours. It took a while for UL to reconfigure the standard, but in 2017 they re-issued the standard for manufacturers to use. The following cables are UL 2196 approved and [Read More]
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When Are Low Frequency Sounders Required?
As mentioned in our last post, per NFPA 72 Chap. 18.4.6, the sound level of in-unit alarm notification in sleeping areas has to be either 15 dB over ambient, 5 dB over the highest measured sound level having a duration of at least 60 seconds or 75 dB at the pillow, whichever is greater. 75 [Read More]
When Do Locked Doors in High Rises Have to Unlock?
High rise suites can take up a large portion of a floor & many times take up the entire floor. These large suites are usually divided in sections that may have electronically secured doors that partition them. Examples would be data server rooms and file rooms, as well as stairwells and suite entrances from the [Read More]
New Chicago Construction Code Occupancy Types
In a previous blog, we discussed which Chicago Construction Codes have already been updated, which are going to be updated on 8/1/20 and which are going to be updated in 2021. We’ve also reviewed one of the upcoming changes to fire alarm requirements in Chicago. In this blog, we’ll continue to identify changes to required [Read More]
What Are The Changes In The New Chicago Fire Code?
We’ve been asked by many design firms and installers whether the adoption of the new Chicago Building Code (CBC) will affect the existing requirements for fire alarm systems. The actual changes to the Chicago Fire Code won’t be adopted until 2021, but there are changes in the new CBC that can affect fire alarms systems [Read More]
What Are the Changes In The New Chicago Construction Code?
The Chicago Construction Codes are about to undergo a major update on August 1, 2020. At this time, they are generally grouped together under Titles 13, 15 and 18 of the Chicago Municipal Code, but will be broken out into their own sub-titles in Title 14. A letter designation will title the sub-tile to reflect [Read More]
New Electrical Code for the City of Chicago
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The City of Chicago has adopted the 2017 version of NFPA 70 (NEC) as its new electrical code, with amendments of course. The new code is set to become effective on March 1, 2018. I’ve got a copy of that new code and have begun going over the fire alarm/voice evacuation section to find variations [Read More]
Can I use a CO duct detector in lieu of a spot CO detector?
Carbon monoxide detection requirements can be confusing given the differences between existing and new building requirements, knowing where the detectors should be located and whether you need them at all. Any building that uses a fossil fuel burning appliance should have CO detection. The locations for that detection are varied and a subject for another [Read More]
Electrical Contractors
We’re not electricians and are smart enough to not pretend to be when it may be convenient for us to do so. Our business success has been based on long term relationships that are built on trust and confidence. The relationships we have with our many electrical contracting partners have been earned through a [Read More]
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