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BS EN 50336:2021

BS EN 50336:2021

$102.76

Bushings for transformers and reactor cable boxes not exceeding 36 kV

Published By Publication Date Number of Pages
BSI 2021 20
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This document is applicable to insulated bushings, excluding those plug-in bushings specified by EN 50180 series, for use in air insulated, shroud insulated and fully insulated cable boxes for liquid filled transformers and reactors for rated voltages up to 36 kV, and rated currents up to 4 000 A at frequencies from 15 Hz to 60 Hz.

PDF Catalog

PDF Pages PDF Title
2 undefined
6 1 Scope
2 Normative references
3 Terms and definitions
7 4 Requirements
4.1 General requirements
4.2 Ratings
4.2.1 Standard values of rated voltage for ceramic insulators (Ur)
4.2.2 Standard values of rated voltage for resin-insulated bushings (Ur)
4.2.3 Standard values of rated current (Ir)
4.3 Ceramic bushings
4.3.1 General requirements
8 4.3.2 Clamping arrangements
4.3.3 Terminals
9 4.4 Resin-insulated bushings
4.4.1 General requirements
4.4.2 Type test (temperature cycle)
4.4.3 Routine tests
4.4.3.1 Liquid leakage sample test
4.4.3.2 Air leakage routine test
4.4.3.3 Power frequency withstand voltage test
10 4.4.3.4 Routine partial discharge test
5 Ceramic busing dimensions
5.1 Ceramic insulator
12 5.2 Clamping arrangement for ceramic insulators
13 5.3 Bushing end terminal arrangement
17 6 Resin bushing dimensions

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BS EN 50336:2021
$102.76