Sandy Help

Our numbers for Long Island for
Security, Fire Alarm, and CCTV installation, sales, repairs, inspections, due to the storm: 631-745-0447 and 631-331-9082
or nyfiremaster@gmail.com
MES SECURITY SYSTEMS
For Northern NJ : 201-444-3219
SOKOLY ELECTRIC AND ALARMS
(Also for Generator install, repair, and service as well as Electrical install, repair and service)

UL Guide for Floodwater/Electrical Equipment

http://www.ul.com/global/documents/offerings/perspectives/regulators/electrical/flooding/UL_Floodwater_Brochure_2009.pdf

Storm Related Info for Water Damaged Electrical Equipment

Evaluating Water-Damaged Electrical Equipment is available for download at no charge at no charge at www.nema.org/stds/water-damaged.cfm. It provides advice on the safe handling of electrical equipment that has been exposed to water and outlines items that require complete replacement or that can be reconditioned by a trained professional.

A New Approval

Nassau County New York office of the Fire Marshal has approved and accepted the Arlington FL-430/FLS-430 support Box for Commercial Fire Alarm Installation in Suspended Ceiling Tile Locations where Smoke Detectors are installed. UL listed for luminaires up to 50 lbs and smoke detectors up to 25 lbs!
http://www.youtube.com/watch?v=SK1SjspN5bI

Is Derating the same as Safety Factor?

No - derating factor is different from the safety factor. The derating factor is used as the basis of calculation to determine worst-case performance for EOL voltages: when the batteries are at the end of their life expectancy (5 years) and the battery output voltage has decreased (15%) the result is the panel's output voltage will similarly be reduced (unless it is documented by UL to have compensation circuitry). Accordingly, circuits that used to be calculated using 24VDC are now calculated using 20.4VDC as the base voltage. Then the circuit load calculations are done using the UL max current draws - which are measured at the lowest listed operating voltage (typically 16VDC).

The safety factor is to provide additional power beyond what the minimum calculations show will be required to operate the system, to compensate for minor system additions or changes. (2010 at 10.5.6.3.1)
The de-rating factor is applied to the voltage, the safety factor is applied to the amperage.
The Safety factor is upping the battery capacity after calculating the proper standby and alarm capacity needed to operate a system

Message from God

The difference between GOD and the FIRE MARSHALL is that GOD does not think that he is the FIRE MARSHALL

Nice Collection!

My buddy Nick Markowitz collected these beauties