Low-voltage electrical distribution network up to 1000 V a.c. and 1500 V d.c. Electrical safety. Equipment for testing, measuring or monitoring of protective measures. Part 6. Effectiveness of residual current devices (RCD) in TT, TN and IT systems
Maritime navigation and radiocommunication equipment and systems. Electronic chart display and information system (ECDIS). Operational and performance requirements, methods of testing and required test results
State system for ensuring the uniformity of measurements. Two channel heat meters for water heat supply systems. Standardization of admitted error limits in measurements of the used thermal energy by users
€10
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