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Electromagnetic compatibility of technical equipment. Signalling on low-voltage electrical installations in the frequency range 3 kHz to 148,5 kHz. Part 1. General requirements, frequency bands and electromagnetic disturbances

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Workmanship requirements for soldered electronic assemblies. Part 2. Surface-mount assemblies

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High-voltage kenotrons. The anode current measurement method within the voltage pulse

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Facsimile apparatus with redundancy reduction means for document transmission and reception. Basic parameters

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Indirectly heated thermistors with negative temperature coefficient resistance. Blank detail specification. Assessment level E

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Communication networks and systems in substations. Part 5. Communication requirements for functions and device models

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