Terms beginning with O referencing IET 01
Standard or regulation
IET 01
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.
O
Open combined Protective and Neutral conductor Detection Device (OPDD)
An Open combined Protective and Neutral conductor Detection Device (OPDD) is a device or integrated EV charging function designed to detect conditions associated with an open PEN conductor fault and disconnect, or initiate disconnection of, the affected circuit or equipment. IET 01:2024 sets definitions, requirements and tests for OPDD behaviour.
Open PEN Detection
Open PEN detection identifies conditions that may indicate a broken or disconnected combined protective and neutral conductor. It is normally assessed during product selection, circuit design, installation verification and maintenance of EV charging equipment.