Terminology

EV Charging Terminology

Clear definitions for the standards, systems and language used across UK EV charging.

1 term

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Terms beginning with T referencing IET 01

Standard or regulation

IET 01

Definition:

IET 01:2024 is a non-statutory IET standard and technical specification for Open combined Protective and Neutral conductor Detection Devices used with EV charging equipment. It sets out definitions, requirements and tests for how discrete or integrated OPDD functions should respond to open PEN conductor faults.

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T

TN-C-S Earthing

Definition:

TN-C-S earthing is an arrangement where neutral and protective functions are combined in part of the supply and separated within the installation. It is normally assessed during product selection, circuit design, installation verification and maintenance of EV charging equipment.

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