Cable Insulation Testing

Cable Insulation Resistance Testing (Introduction) Need of Insulation Testing: Cable Insulation can be nicked or scraped from individual conductors when pulled through raceways. Insulation can also be damaged when exposed to moisture, excessive heat, or certain chemicals. To verify that insulation has not been damaged during the installation process, an insulation resistance test must be […]

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Conductor Selection and Sizing

Conductor Selection and Standard Sizing in Electrical System Installations: Copper, aluminum, and copper-clad aluminum are the most common material selections used for commercial and industrial wiring installations. Because of characteristics such as flexibility and good conductivity, copper (Cu) is the most widely used type of conductor material. Brief and concise introduction of Conductor Selection and […]

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Grounding in Electrical Equipments

Importance of Grounding in Electrical Power System- In Protection and System Operation Introduction to System and Equipment Grounding: Grounding is the connection to earth of an electrical system or its equipment. Both electrical distribution systems and electrical equipment are connected to ground (earth).¬† System grounding allows for proper and safe operation of the electrical distribution […]

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Bonding in Electrical Equipment

Bonding in Electrical¬†Equipment Bonding Ground faults cannot be avoided in distribution systems. For various reasons, ranging from equipment failure to the accidental intrusion of moisture into a piece of electrical equipment, there is a system in place to protect personnel from accidental electric shock. Bonding is the permanent joining of metallic parts to form an […]

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