Classification of electrical and electronic equipment with regard to protection against electric sho...
Defines classes of electrical and electronic equipment regarding protection against electric shock. Applies to equipment intended for connection to an external power supply with voltages up to 440 V r.m.s. between phases and 250 V r.m.s. between phases and earth, for use by the general public in homes, offices, workshops, schools, farms and the like, and for medical and dental purposes. Has the…
Industrial-process control valves - Part 1: General considerations
Applies to all types of industrial-process control valves. Establishes a basic component and functional terminology list and gives guidance on the use of the other parts of this publication. Gives overall design requirements, test requirements and prediction methods.
Dimensions of toroids made of magnetic oxides or iron powder
Gives information to serve as a guide for the future design of toroids (ring cores) of rectangular cross-section, made of magnetic oxides or iron powder, for pulse and broadband transformers. Toroidal magnetic strip-wound cores form the subject of a separate publication.
Assists the selection of suitable on-load tap-changers for use in conjunction with the tapped windings of transformers or reactors. This publication should be read in conjunction with IEC 60214 and IEC 60076. Gives field service advice concerning safety of operation, parallel operation, contact erosion and oil contamination, also comprehensive details for accompanying enquiries and orders.