Electricity metering equipment (a.c.) - Particular requirements - Part 31: Pulse output devices for ...
Applies to passive, two-wire, externally powered pulse output devices to be used in electricity meters as defined by the relevant standards of technical committee 13 as well as future standards for static VA-hour meters. Such pulse output devices are used to transmit pulses to a receiver (e.g. a tariff device).
This publication is of high relevance for Smart Grid.
Electrical measuring instruments - X-t recorders - Part 1: Definitions and requirements
Applies to X-t recorders used for the measurement of voltage and current which measure and record analogue electrical quantities as a function of time. Also applies to non-interchangeable accessories and accessories of limited interchangeability (e.g. shunts, impedance-elements) if they are used with the recorder and the adjustments have been made for the combination. IEC 61143-1 and IEC 61143-2…
Safety of laser products - Part 1: Equipment classification, requirements and user's guide
Deals with the safety of laser products. Covers laser radiation in the wavelength range 180 nm to 1 mm, indicates safe working levels of laser radiation and introduces a system of classification of lasers and laser products according to their degree of hazard. Replaces IEC 60825 (1984) and IEC 60820 (1986). Has the status of a group safety publication in accordance with IEC Guide 104.