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What is the difference between exposed conductive and extraneous conductive parts?
What is the difference between exposed conductive and metallic parts?
What is the difference between liable and liable?
What does 'liable to introduce potential' mean?
What is the difference between libel and liable?
How to determine if earth potential is liable to be introduced?
Definition of an extraneous conductive part. In accordance with BS 7671, an extraneous conductive part is one that is: conductive. liable to introduce a potential, generally Earth potential. not forming part of the electrical installation.
Nov 2, 2020 · Liable, open, exposed, subject, prone, susceptible, sensitive are used with reference to persons or things and mean being by nature or situation in a position where something stated or implied may happen.
Dec 1, 2023 · In each consumer’s installation within a building, main protective bonding conductors complying with Chapter 54 of BS 7671 are required to connect any extraneous-conductive-parts, which are liable to introduce a dangerous potential difference, to the MET in accordance with regulation 411.3.1.2.
What is an extraneous conductive part? The definition of an extraneous-conductive-part as defined within BS 7671:2018 is as follows: “A conductive part liable to introduce a potential, generally Earth potential, and not forming part of the electrical installation.”
main difference from an exposed conductive part, which is part of the electrical installation. It should be noted that the term extraneous-conductive-part is hyphenated which means it is a single term which has a specific meaning.
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Protective equipotential bonding is a method of applying a low impedance path from exposed-conductive-parts to extraneous-conductive-parts, to ensure equal potential throughout the installation thus preventing a hazardous potential difference occurring between such parts in the event of a fault.
Libel is related to defamation, generally referring to statements made about someone without just cause and exposing them to public contempt. Liable, on the other hand, is an adjective referring to the person legally responsible for something, such as a debt that is owed.
