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Standards Development
This document provides guidance upon the design, construction, specification and testing of circuitbreakers with intentional non-simultaneous pole operation which are excluded from the scope of IEC 62271- 100. In all other respects the scope of this document is identical to that of IEC 62271-100. This document provides supplementary information and guidance for this type of circuit-breaker and is intended to be used in conjunction with IEC 62271-100.
Technical Report IEC 62271-302 addressing this topic was issued in 2010 and has been in use since that date. The market need for documentation on this topic is well-proven however the project to upgrade the document to an International Standard failed to achieve the necessary consensus and was terminated. A Technical Specification has been identified as the best way continuing to develop this area of Standardisation and will be based on the work already undertaken (draft attached).
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