单独变压器、自耦变压器、可变频率变压器和电抗器

[中文适用范围]： 规定了额定电源电压不超过交流1000V、额定频率不超过500Hz、额定空载或负载输出电压不超过15kV、额定输出不超过5的变压器和电抗器的安全要求。 [外文原描述]： Applicable to stationary or portable, single-phase or polyphase, air-cooled separating transformers, autotransformers, variable transformers and small reactors, associated or not, having a rated supply voltage not exceeding 1 000 V a.c., a rated no-load or load output voltage not exceeding 15 kV a.c. or d.c. and a rated output not exceeding: - single-phase transformers: 1 kVA - single-phase reactors: 2 kVAR - polyphase transformers: 5 kVA - polyphase reactors: 10 kVAR. Has the status of a group safety publication.