This Standard specifies procedures for the safety inspection and testing of single and polyphase electrical equipment, (other than fixed equipment) which is in-service, or available for hire or resale, and which is designed for connection by a flexible power supply cord and plug to a low voltage supply. It applies also to cord extension sets, electrical portable outlet devices, portable residual current devices and portable isolation transformers.Equipment connected by fixed wiring and large, stationary equipment connected by a flexible cord which is not flexed during normal use or exposed to abuse or damage in a hostile environment e.g. window mounted air conditioners, is not normally considered to represent a hazard sufficient to warrant routine in-service electrical safety testing. Accordingly, the testing of such equipment is not required by this Standard, although other standards or statutory requirements may specify such testing.Specialized electronic equipment, e.g. portable computers, may sustain damage if not tested in accordance with manufacturers instructions. Accordingly, advice should be sought from the equipment manufacturer or agent before proceeding with in-service tests.