As an industrial electrician, you'll encounter many complex electrical circuits and drives that will break down as they age. Chances are, you won't be an expert in repairing these devices, but you can take some practical steps to solve problems...
The U.S. motor industry has worked on a standardized basis for more than three-quarters of a century. The standardization agency — National Electrical Manufacturers Association (NEMA) — was established in 1926 “… to promote the standardization of...
As fiber optic cabling becomes an increasingly important aspect of local area network (LAN) communications infrastructures LAN installers have to be well schooled in the fundamentals of terminating fiber and installing fiber connectors. In fiber...
Interoperability, open systems, and a standard protocol are concepts long sought by facilities managers and others in the electrical industry. People often ask why an engineer can't select the best sensing and control devices and other products...
After 20 years in construction, Dan Groot had grown tired of crawling up into attics to pinpoint the exact spot to drill a hole for fishing wire down through the walls. During sweltering Florida summers, temperatures in these spaces can climb to...
Tungsten-halogen and standard incandescent are the lamps of choice in the growing low-voltage lighting system world Each of the three basic types of light sources incandescent, fluorescent, and HID has its own particular applications and...
According to the National Electrical Code, the number of conductors in a raceway shall not be more than what can be installed or withdrawn without damage to the conductors or to the conductor insulation. This can be achieved by limiting the total...
Ladder logic is the basis of most control functions Ladder logic uses switch or relay contacts to implement Boolean expressions. In years past, ladder logic was made possible with discrete relays and was sometimes termed relay logic. Today most...
Meters are indispensable when working with electrical systems Over the years, a wide variety of electrical meters has been developed to assist with monitoring and troubleshooting electrical systems. Let's take a look at some of the more common...
The first type of motor built is still in widespread use In the late 1800s, several inventors built the first working motors, which used direct current (DC) power. After the invention of the induction motor, alternating current (AC) machines...
