1 Scope
This part of GB/T 5591 specifies the requirement relating to the test methods for combined flexible materials for electrical insulation.
This part is applicable to performance test of combined flexible materials for electrical insulation.
2 Normative References
The following normative documents contain provisions which, through reference in this text, constitute provisions of this part of GB/T 5591. For dated references, subsequent amendments to, or revisions of, any of these publications do not apply. However, parties to agreements based on this part are encouraged to investigate the possibility of applying the most recent editions of the normative documents indicated below. For undated references, the latest edition of the normative document referred to applies.
GB/T 451.2-1989 Paper and board — Determination of basic weight (eqv ISO 536:1976)
GB/T 1408.1-1999 Methods of test for electric strength of solid insulating materials — Tests at power frequencies (eqv IEC 60243-1:1988)
GB/T 11026.4-1999 Electrical insulating materials — Properties of thermal endurance — Part 4: Ageing ovens — Single-chamber ovens (idt IEC 60216-4-1:1990)
3 General Requirements on Tests
Unless otherwise specified, the test specimens, after being cut, shall be conditioned for 24 h at (23 ± 2) ℃ and (50 ± 5) % relative humidity. If the test is not conducted in this standard atmosphere, the test shall be made within 5 min after removal from the standard atmosphere.
