Take care when replacing circuit breakers and fuses in existing services and panelboards at single-, two- and multifamily homes. Older single- and two-family homes with 100A to 200A, 120/240V single-phase services were...

I often get questions regarding detector placement in difficult areas, and most of the time the answer lies in the Annex A to NFPA 72 of the National Fire Alarm and Signaling Code. I will cover the most common questions here...

With the addition of new Section 725.144 and the accompanying Table 725.144 in the 2017 NEC covering transmission of power and data to a powered device comes the requirement for a special marking of the cable used for these...

National Electrical Code (NEC) Article 110 covers general requirements for the examination and approval, installation and use, access to and spaces about electrical conductors and equipment; enclosures intended for personnel...