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BSI 21/30427222 DC:2021 Edition

BSI 21/30427222 DC:2021 Edition

$13.70

BS EN 50089. Cast resin partitions for metal enclosed gas-filled high-voltage switchgear and controlgear

Published By Publication Date Number of Pages
BSI 2021 17
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This document applies to pressurized partitions used in indoor and outdoor installations of high-voltage AC and DC switchgear and controlgear with rated voltages (Ur) above 1 kV AC / 1,5 kV DC and with design pressure higher than 300 kPa, where the gas is used principally for its dielectric and/or arc-quenching properties. Gases with insulating properties are dry air, inert gases, for example sulphur hexafluoride or nitrogen or a mixture of such gases. The partitions comprise pressurized barriers in electrical equipment not necessarily limited to the following examples: — circuit-breakers; — switch-disconnectors; — disconnectors; — earthing switches; — current transformers; — voltage transformers; — surge arrestors; — busbars and connections; — cable connections / terminations — cable bushings — etc. Partitions which are only pressurized from one side are also covered. 1 kV AC / 1,5 kV DC means it is valid for the apparatus applied and where the partitions are installed, however, the application of voltages below 1 kV AC / 1,5 kV DC as in e.g. current and voltage transformer are not excluded. This document does not apply to high voltage bushings (see EN 60137, EN 61462 and EN 62155).

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BSI 21/30427222 DC
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