The excess space inside electrical supply stations (substations) is often considered for storage of construction materials.

This article will focus on grounding and bonding requirements as they relate to metal parts and metal equipment of electric signs and neon installations.

Neon sign transformers differ from most other types of transformers one is likely to encounter.

Excerpted from the revised 4th edition of One- and Two-Family Electrical Systems, this article looks at the 1999 Code changes that affect air conditioning and heat pump equipment.

As metal piping is being replaced by plastic piping, we're losing one of our best means of connecting electrical systems to the earth through low impedance.