What is the requirement for grounding the load side circuits for suspended ceiling low-voltage power grid distribution systems that are supplied by a Class 2 power ...

Though suspended ceilings (above, right) remain the most popular ceiling system option, facility managers report that 17% of their total building square footage still features an open plenum ...

A disconnecting means for the Class 2 supply to the power grid system for low-voltage suspended ceiling power distribution systems shall be located as to be _____ and _____ of the Class 2 power source ...