This guide covers what you need to know about IPC-A-640: the class system, key acceptance criteria, inspection requirements, and how it relates to other IPC standards. What is IPC-A-640? IPC-A-640, officially titled “Acceptance Requirements for Optical Fiber, Optical Cable, and Hybrid Wiring. d suppliers of electrical construction services. Existence. ontain provisions that constitute requirements of this standard as cited in the text. Use of more recent i sues of cited documents may be authorized by the responsible SMA Technical Authority. 9 QUALITY ASSURANCE REQUIREMENTS – TEST.
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