A requirement for every hospital, emergency power generators must be operational in 10 seconds or less when electric utility power is lost. If a backup generator fails, the lives of hospital patients ...
The use of structural metal as a grounding electrode is an issue that has been revised during several recent Code cycles. The 2011 NEC has once again revisited the rule explaining when a structural ...
Lightning protection is a critical aspect of establishments that operate sensitive electrical equipment, especially in the broadcast industry. Tied to this first line of protection against lightning ...