IEEE approves guide for specs of high-voltage circuit breakers
February 20, 2009
IEEE has approved a new power switchgear standard, IEEE C37.12, “Guide for Specifications of High-Voltage Circuit Breakers (over 1000 Volts)”. The specs in this new standard apply to all indoor and outdoor types of AC high-voltage circuit breakers rated above 1000 volts.
IEEE
has also approved IEEE C37.04b, “IEEE Standard for Rating Structure for
AC High-Voltage Circuit Breakers Rated on a Symmetrical Current Basis -
Amendment to Change the Description of Transient Recovery Voltage for
Harmonization with IEC 62271-100”.
It has also approved a revision of IEEE C37.13, “Standard for Low-Voltage AC Power Circuit Breakers Used in Enclosures”, to modify all dimensional information to provide metric dimensions to gain global acceptance of this standard.
The group has revised IEEE C37.27, “Application Guide for Low-Voltage AC Power Circuit Breakers Applied with Separately Mounted Current-Limiting Fuses”. Previously titled “Low-Voltage AC Non-integrally Fused Power Circuit Breakers (Using Separately Mounted Current-Limiting Fuses)”, the new standard also slightly revises the scope of the document.
Finally, IEEE has approved work to begin on a new standard amendment, PC37.13.1a, “IEEE Standard for Definite Purpose Switching Devices for Use in Metal-Enclosed Low-Voltage Power Circuit Breaker Switchgear - Amendment: Revise Short-Circuit Rating and Test Requirement”. This amendment will revise short-circuit rating clause 5.5 and add tests requirements to short-circuit tests clause 8.1.8.
CLICK HERE for more information on the IEEE Standards Association.
It has also approved a revision of IEEE C37.13, “Standard for Low-Voltage AC Power Circuit Breakers Used in Enclosures”, to modify all dimensional information to provide metric dimensions to gain global acceptance of this standard.
The group has revised IEEE C37.27, “Application Guide for Low-Voltage AC Power Circuit Breakers Applied with Separately Mounted Current-Limiting Fuses”. Previously titled “Low-Voltage AC Non-integrally Fused Power Circuit Breakers (Using Separately Mounted Current-Limiting Fuses)”, the new standard also slightly revises the scope of the document.
Finally, IEEE has approved work to begin on a new standard amendment, PC37.13.1a, “IEEE Standard for Definite Purpose Switching Devices for Use in Metal-Enclosed Low-Voltage Power Circuit Breaker Switchgear - Amendment: Revise Short-Circuit Rating and Test Requirement”. This amendment will revise short-circuit rating clause 5.5 and add tests requirements to short-circuit tests clause 8.1.8.
CLICK HERE for more information on the IEEE Standards Association.
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