Insulation systems for direct-current machines are classified in accordance with their limiting temperatures as determined by test rather than by chemical composition. The intention is to classify according to the recognized A, B, F, and H categories by determining thermal capability in accordance with machine temperature-rise standards. This test procedure has been prepared to indicate accepted t...
ANSI/IEEE Std 304-1977由美国电气电子工程师学会 US-IEEE 发布于 1977-09-08,并于 1977-09-08 实施。
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