This standard covers electrical, dimensional, and related requirements for outdoor power class apparatus bushings which have basic impulse insulation levels of 110 kV and higher. It provides specific values for…
This standard applies to the following types of devices designed for operation above 600 volts whether for indoor or outdoor service. (a) Fuses (see paragraph 25-50). (b) Fuse cutouts (see…
This standard prescribes insulation levels and dielectric test requirements for power transformers where: (1) The transformer insulation levels and dielectric test requirements are specified to be in accordance with this…
This publication pertains to wide-band transformers, transmitting power of equal to or more than 100 W1. Guides to application and test procedures are included. Appendices contain certain precautions and recommended…
The following Standards cover switchboards and switching equipment not specifically covered elsewhere as apparatus. These Standards do not apply to industrial control equipment or communication switchboards and switching equipment.
These standards cover assemblies of switchgear devices such as switches, interrupting devices, control, metering, protective and regulating equipment with associated interconnections and supporting structures. These standards do not apply to…
