Variables affecting electric power quality haven’t changed significantly over the years, but the technological advances of electrical and electronic equipment make the equipment much more vulnerable to power quality events than in the past.
Copper remains a primary carrier for integrated building systems, but fiber optic cabling is assuming an increasingly important role in data, telephone, access controls, security cameras, fire and security alarms, sensors, and other signaling-dependent systems.
The proliferation of lithium-ion powered cordless tool models continues to hold the attention of tools buyers, including electricians. However, electricians still turn to an old staple to do theire work: manual hand tools.
The tape measure is a basic tool for integrated systems installers, electricians and professionals in many trades. It has been in use for years, but the measuring tapes available today are nothing like early versions.
The handheld power hammer drill is a basic electrician’s tool that is two drills in one—a conventional drill for working in wood and soft materials and a hammer drill for drilling 3/16- to ¼-inch holes in masonry, cinder blocks, concrete, metal and other hard materials.