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Chapter A General rules of electrical installation design

Chapter A General rules of electrical installation design

Chapter A General rules of electrical installation design

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2<br />

3<br />

4<br />

<strong>Chapter</strong> H<br />

LV switchgear: functions &<br />

selection<br />

Contents<br />

The basic functions <strong>of</strong> LV switchgear H2<br />

1.1 Electrical protection H2<br />

1.2 Isolation H3<br />

1.3 Switchgear control H4<br />

The switchgear H5<br />

2.1 Elementary switching devices H5<br />

2.2 Combined switchgear elements H9<br />

Choice <strong>of</strong> switchgear H 0<br />

3.1 Tabulated functional capabilities H10<br />

3.2 Switchgear selection H10<br />

Circuit-breaker H<br />

4.1 Standards and description H11<br />

4.2 Fundamental characteristics <strong>of</strong> a circuit-breaker H13<br />

4.3 Other characteristics <strong>of</strong> a circuit-breaker H15<br />

4.4 Selection <strong>of</strong> a circuit-breaker H18<br />

4.5 Coordination between circuit-breakers H22<br />

4.6 Discrimination MV/LV in a consumer’s substation H28<br />

Schneider Electric - Electrical <strong>installation</strong> guide 2008<br />

H<br />

© Schneider Electric - all rights reserved

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