What is Ground Fault Testing, Why is it Important?

Published by Carelabs (Carelabz) A ground fault is any short circuit that outcomes in an unintentional connection amid a ground and energized ungrounded phase conductor and ground. Ground faults are the most common type of fault on power distribution systems. They are due to the insulation failure or accidental grounding of an ungrounded phase conductorContinue reading “What is Ground Fault Testing, Why is it Important?”

Learn What is Earth Ground Test, Why and How is it done?

Published by Carelabs (Carelabz) Electrical safety testing is essential to ensure safe operating standards for any product that uses electricity. Various governments and agencies have developed stringent requirements for electrical products that are sold world-wide. Several tests are conducted to check the safety of products. One among that is earth test. Potentially the most dangerousContinue reading “Learn What is Earth Ground Test, Why and How is it done?”

Earthing System

How To Choose The Right System Earthing Arrangement? Application Note, 2009 Published by Schneider Electric Source: https://www.se.com/ww/en/download/document/DBTP72ART_EN/ All System Earthing Arrangements (SEA) provide equivalent protection of life and property. However each has certain advantages and inconveniences in other terms that may be important for a given installation. In both commercial and industrial applications, needs change,Continue reading “Earthing System”

Part 4: AC Power Distribution Systems & Standards

Published by Nikola Zlatanov* Ground Fault Protection Article 230.95 of NEC requires ground- fault protection of equipment shall be provided for solidly grounded wye electrical services of more than 150 V to ground, but not exceeding 600 V phase-to-phase for each service disconnect rated 1000 A or more. The rating of the service disconnect shallContinue reading “Part 4: AC Power Distribution Systems & Standards”

Measuring Earth Resistance

Published by E. Hering, Dresden (Germany) Earth resistance is a key parameter in determining the efficiency of earthing systems. In this article we look at the measurement of earth resistance 1 A Few Fundamentals 1.1 Earth resistance and earth impedance The efficiency of an earthing system is principally determined by its impedance ZE. As canContinue reading “Measuring Earth Resistance”

Application Note Earthing Systems: Fundamentals of Calculation & Design

Application Note Published by H. Markiewicz and A. Klajn, November 2014 ECI Publication No. Cu0120 Document Issue Control Sheet Document Title: Application Note – Earthing Systems: Fundamentals of Calculation and Design Publication No: Cu0120 Issue: 03 Release: June 2003 Author(s): H. Markiewicz and A. Klajn Reviewer(s): D. Chapman, S. Fassbiner Document History Issue Date PurposeContinue reading “Application Note Earthing Systems: Fundamentals of Calculation & Design”