Answered: Which of the following is not an…

Which of the following is not an approved grounding method? A) Metallic underground water piping B) Ground rods C) Gas piping D) Metal frame of a building

Delmar's Standard Textbook Of Electricity

7th Edition

ISBN:9781337900348

Author:Stephen L. Herman

Publisher:Stephen L. Herman

ChapterS: Safety, Basic Electricity And Ohm's Law

Section: Chapter Questions

Problem 10RQ: A ladder is used to reach the top of a building 16 feet tall. What distance should the bottom of the...

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Concept explainers

Dielectric Breakdown

A dielectric is a material with low electrical conductivity and so is classified as an insulator. Dielectric materials are used to block the flow of electricity through them, allowing them to behave as an insulators. They can also be used to store electric charge or improve capacitance.Dielectrics have no free electrons for conduction because electrons are tightly bound to the nucleus. Because dielectrics contain a small number of electrons for electrical conductivity, they have a dipole. The two primary roles of dielectrics in electrical devices are insulation and electrical energy storage. An electric field polarizes the dielectric, and the polarization of the molecules allows dielectric materials to store charge.

Question

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Which of the following is not an approved grounding method?
A)
Metallic underground water piping
B)
Ground rods
C)
Gas piping
D)
Metal frame of a building

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