I would say that for electricians it would be NFPA 72, 70E, 70B, 110. There are more, that get more specific in nature that I am sure are also used, such as for health care. There is also a new NFPA standard for residential work that might become popular, I cannot remember the # of it offhand. There are other documents beside the NFPA that I believe all electrical people should have, we can save that for another discussion.
#85364 - 06/25/0310:50 AMRe: Most 'Popular' NFPA Codes besides NEC?
In addition to 70 (NEC), 72 (Fire Alarm Code) and 101 (Life Safety Code), I also use NFPA 20 (Installation of Stationary Pumps for Fire Protection), 25 (Inspection, Testing, and Maintenance of Water-Based Fire Protection Systems), 75 (Protection of Information Technology Equipment), 76 (Fire Protection of Telecommunications Facilities) 90A (Installation of Air-Conditioning and Ventilating Systems), 90B (Installation of Warm Air Heating and Air-Conditioning), 780 (Standard for the Installation of Lightning Protection)
#85366 - 06/26/0308:54 AMRe: Most 'Popular' NFPA Codes besides NEC?