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IEEE AIEE 1B-1944

AIEE Report on Guiding Principles for the Specification of Service Conditions in Electrical Standards
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IEEE AIEE 1B-1944

AIEE Report on Guiding Principles for the Specification of Service Conditions in Electrical Standards

PUBLISH DATE 1943
PAGES 4
IEEE AIEE 1B-1944

New IEEE Standard - Superseded.

In the various standards there will be found a number of different situations regarding Usual Service Conditions. The following three are typical.

  • The group where the maximum ambient temperature is specified. The Standards for Bushings, Fuses, Lightning Arresters, Protector Tubes and Potential Devices where 40 C ambient is used and Marine Equipment where 50 C ambient is used are typical of this group.
  • The group where both the maximum and daily average temperatures of the cooling medium are specified. Standards for Transformers, Regulators and Neutral Grounding Devices are typical of this group.
  • The group where a higher ambient temperature is specified for silver contacts than for copper contacts. Standards for Circuit Breakers, Air Switches and Switchgear Assemblies are typical of this group.

It is suggested that a selection of one of the following groups can be made for the statement of Usual Service Conditions in most of the standards for specific equipment.

SDO IEEE: Institute of Electrical and Electronics Engineers
Document Number 1B
Publication Date Nov. 30, 1943
Language en - English
Page Count 4
Revision Level
Supercedes
Committee
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