For those currently using Intrinsically Safe two-way radios approved to the FM3610_88 standard, there are some changes being made by Motorola Solutions that will directly impact you.
The FM3610_88 may only be manufactured through the end of December 2015 - at which point the switch from FM to UL will begin. To help you understand this transition and what it means for you, here are some frequently asked questions and answers about the change.
What does “Intrinsically Safe” actually mean?
According to the National Electrical Code (NEC), “intrinsically safe” is an equipment design protection method for Division 1 which encompasses hazards that may be present under normal operating conditions - or, frequently present during repair or standard maintenance work.
This term is especially relevant for those who operate in what are known as “hazardous locations.” These locations are areas where fire or explosion hazards may exist “due to flammable liquids, combustible dust, or ignitable fibers or flyings,” according to the NEC.