Applies to: a.c. transmission, distribution and utilization systems and equipment with standard frequencies 50 Hz and 60 Hz and a nominal voltage above 100 V; a.c. and d.c. traction systems; a.c. and d.c. equipment with nominal voltages below 120 V a.c. or below 750 V d.c.
High-voltage switches. Part 1: High-voltage switches for rated voltages above 1kV and less than 52 k...
Is applicable to three-phase, alternating current switches and switch-disconnectors having making and breaking current ratings, for indoor and outdoor installations, for rated voltages above 1 kV and less than 52 kV and for rated frequencies from 16 2/3 Hz up to and including 60 Hz.
This standard is also applicable to the operating devices of these switches and to their auxiliary equipment.
Specification for laminated pressboard. Part 1: Definitions, classification and general requirements
Contains the definitions required for the understanding of all three parts, the classification of material into types, and the general requirements applicable to all material covered by the standard.
Standard test procedures for semiconductor X-ray energy spectrometers
Gives standard test procedures for semiconductor X-ray energy spectrometers consisting of a semiconductor radiation detector assembly and signal processing electronics interfaced to a pulse-height analyzer/computer.
1. Scope
1.1 This Standard applies to single and multichannel electrocardiographs.
1.2 This Standard specifies minimum requirements to assure effective
performance of eletrocardiographs.
1.3 This Standard does not provide specific requirements for electrodes.
1.4 This Standard does not provide specific requirements for
vectorcardiographs.
