Electical Contractor

Another selling point for the cable industry Warranties. They are both frustrating and appreciated. Warranties are those intangible benefits that consumers look for prior to making a large purchase. Who has not taken the warranty into consideration before buying a car, a freezer, even a house?

Article 210 Branch Circuits Article 240 Overcurrent Protection Article 250 Grounding Article 310 Conductors for General Wiring Article 430 Motors, Motor Circuits and Controllers Branch-circuit size for motor load Q: I have to install a 11/2 horsepower, single-phase, 120V motor with a nameplate full

Dedicated 20-ampere branch circuits are required Most dwelling units are required to have a laundry area within the living area or have a laundry area provided on the premises for a multifamily building.

Add to your profit with voice and data wiring Residential electrical contractor owners and managers must often push aside their efforts to increase business and improve the bottom line to make way for bidding projects and managing jobs.

Earlier this year, routine activities came to an abrupt halt at San Bernardino Valley (Calif.) College when a construction crew excavating with a backhoe struck a power cable, causing a small explosion that knocked out a campus transformer.

There’s strength in members Many electricians have their first encounters with fiber optic cabling when asked to install the cable for others who terminate and test it.

Money usually decides this debate One of the great debates that affects contractors—especially those dealing with communications systems—may be the question of shielded twisted pair (STP) or unshielded twisted pair (UTP).

Picture an electrician installing a load center (technically, a panelboard) on a 120/240V AC system at a location in the building remote from the service location.

CODE CITATIONS Article 100 Definitions Article 210 Branch Circuit Article 220 Branch Circuit, Feeder and Service Calculations Article 240 Overcurrent Protection Article 250 Grounding Article 310 Conductors for General Wiring Article 334 Nonmetallic Sheathed Cable; Types NM, NMC and NMS Article 404 S