MANUFACTURING AND PRODUCTION LINE T

MANUFACTURING AND PRODUCTION LINE TESTS40 General40.1 Electric energy storage systems shall be subjected to 100% production screening to determine that any active controls utilized for safety are functioning.Exception: This check of the safety controls can be conducted on subassemblies or components of the system before final assembly.40.2 An ″as received″ dielectric voltage withstand test as outlined in the Dielectric Voltage Withstand Test, Section 18 shall be conducted on 100% production of Assemblies/packs with circuits exceeding 60 Vdc or 42.4 V peak as outlined in Section 18.Exception: The time for the test may be reduced to 1 s if the test voltage values are increase by 2.4 times the values in Section 18 or as outlined in the routine test criteria of 5.2.2 in the Standard for Information Technology Equipment Safety – Part 1: General Requirements, UL 60950-1. 40.3 A continuity check of the grounding system using a milliohmmeter or other method, shall be conducted on 100% production employing protective grounding. The continuity check shall determine that measurements made on any two points of the grounding system do not exceed 0.1 Ω.40.4 Each resettable non-ASME coded pressure-relief valve shall be tested by the manufacturer for the start-to-discharge pressure by subjecting the pressure-relief valve to a gradually increasing air pressure until the valve begins to open. The start-to-discharge pressure shall be in the range of 90 – 100% of its rated start-to-discharge pressure rating.