Learn the grounding and bonding rules when powering two or more buildings or structures in the same area with a single service.
January 24, 2023 by Lorenzo Mari
This article instructs readers on how to size and select Direct On-Line motor starter parts like circuit breakers, contactors, and thermal overload…
November 17, 2022 by Simon Mugo
This article introduces electrical and power system engineers to the direct on-line motor starter, including principles, operation, wiring, parts,…
November 16, 2022 by Simon Mugo
Learn the rules to tap a feeder without overcurrent protection at the supply point.
September 06, 2022 by Lorenzo Mari
Every electric circuit must have overcurrent protection. In Part 2, Learn about the protection of conductors, flexible cords, flexible cables, and…
August 30, 2022 by Lorenzo Mari
Overcurrent can destroy electrical circuits and equipment. Learn about overcurrent and overcurrent protective devices in Part 1 of this National…
August 17, 2022 by Lorenzo Mari
Learn about voltage drop calculations in three-phase branch circuits and feeders.
August 09, 2022 by Lorenzo Mari
Learn more formulas to calculate voltage drops in single-phase branch circuits and feeders.
August 02, 2022 by Lorenzo Mari
Learn about voltage drops and how to calculate them in branch circuits and feeders.
July 19, 2022 by Lorenzo Mari
Learn how to calculate branch circuits, feeders, and service in a one-family dwelling.
July 01, 2022 by Lorenzo Mari
Learn about load computations in three-phase and single-phase feeders and branch circuits.
June 16, 2022 by Lorenzo Mari
Learn about branch-circuit ampere ratings, conductor ampacity, and overcurrent protection, according to the NEC.
June 07, 2022 by Lorenzo Mari
The NEC presents mandatory rules regarding voltage limitations and the use of ground-fault-circuit-interrupters and arc-fault-circuit-interrupters…
May 31, 2022 by Lorenzo Mari
Learn about the basics of branch circuits, according to the National Electric Code.
May 17, 2022 by Lorenzo Mari
This article will look at some of the most relevant energy usage labelling standards, how they are evolving and how they can be used to provide…
November 11, 2021 by David Chen
Because winds are primarily caused by uneven heating effects of the sun, wind energy is considered to be an indirect form of solar energy and is…
August 21, 2021 by Alex Roderick
This article highlights andividuals working on electrical circuits must use proper safety measures and personal protective equipment.
July 03, 2021 by Alex Roderick
Learn about solid-state characteristics: atomic bonding and crystals.
May 17, 2021 by Lorenzo Mari
Learn about the shell structure of atomic energy levels.
May 11, 2021 by Lorenzo Mari
In high switching frequency applications, the high commutation slopes of the power switches require immunity against high levels of common mode…
January 20, 2021 by Vladimir Scarpa
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