As American Contractors come to grip with the full scope of the coronavirus pandemic, the construction industry is realizing that many ongoing projects could be delayed and disrupted for months, if not suspended altogether.
A surge protector (or surge suppressor or surge diverter) is an appliance or device designed to protect electrical devices from voltage spikes. A surge protector attempts to limit the voltage supplied to an electric device by either blocking or shorting to ground any unwanted voltages above a safe threshold. The terms surge protection device (SPD) and transient voltage surge suppressor (TVSS) are used to describe electrical devices typically installed in power distribution panels, process control systems, Life Safety,…
If prefabrication is so time and cost saving, why aren’t more people doing it? There is no simple answer
In the world of Fire Alarm, it is critical that you understand how UL actually recognizes the equipment and electrical infrastructure you are working with so you can maintain your proper listings for system approvals.