S-727 Metal-Enclosed LV Power Circuit Breaker Switchgear launched for review

JIP33 has issued the S-727 – Metal-Enclosed LV Power Circuit Breaker Switchgear (IEEE Std C37.20.1)  specification for public review.  The consultation period will run for four weeks and will close on Sunday, 30 May 2021 at 23:00 GMT.

The purpose of this specification is to define a minimum common set of requirements for the procurement of metal-enclosed low-voltage power circuit breaker switchgear in accordance with IEEE Std C37.20.1-2015 and amendment IEEE Std C37.20.1A, March 2020 for application in the petroleum and natural gas industries.

The JIP33 standardized procurement specification follows a common document structure comprising of four documents, which together with the purchase order define the overall technical specification for procurement.

It has been developed in consultation with a broad user and supplier base to realize benefits from standardization and achieve significant project and schedule cost reductions.

The files are available to download at

Updates and future specifications will be announced via the project’s mailing list, LinkedIn and Twitter profile.

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