electricalscho

Illuminating Engineering Society of North America. Founded in 1906, IESNA is the recognized technical authority on illumination.

Institute of Electrical and Electronics Engineers. Pronounced “eye-triple-E”, this non-profit U.S. engineering organization develops, promotes, and reviews standards within the electronics, computer and electric power industries.

Intelligent Electronic Device. Equipment containing a microprocessor and software used to implement one or more functions in relation to an item of electrical equipment. IED is a generic term used to describe any microprocessor-based equipment, apart from

International Electrotechnical Commission.

Interposing Current Transformer (software implemented).