7/26/2019 IR Switchgear

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Voltage Minimum

Rating DC Test Voltage

(V) (V)

0 - 250 500

251 - 600 1000

601 - 5000 2500

5001 - 15000 2500

15001 - 39000 5000

Type of ppa!atus Rate" Voltage

DC Test Voltage C DC(#V) (#V) (#V)

$%&6 1$%3 20%3

MC '%25 2&%0 3&%5

(Metal-Clad Switchgear) 15%0 2&%0 3&%5

3'%0 60%0 -

15%5 3&%5 -

SC 3'%0 60%0 -

(Station-type Cubicle Switchgear) &2%5 120%0 -

$%&6 1$%3 20%3

'%25 19%5 2&%'

MEI 15%0 2&%0 3&%5(Metal-Enclosed Interrupter Switchgear) 15%5 3&%0 52%5

25%' $5%0 -

3'%0 60%0 -

0%6 1%6 2%3

MEB 5%0 1$%3 20%3

(Metal-Enclosed Bus) 15%0 2&%0 3&%5

25%0 $5%0 -

35%0 60%0 -onsult manufatu!e!s speifiations

De!i*e" f!om +, . ///

FIELD !E"#$E%$I&L $ES$ !L$&'ES

Minimum Test Voltages

1000

5000

20000

(M )

50

100

$&BLE

$&BLE

SI$C'E&" I%S*L&$I% - "ESIS$&%CE $ES$ !L$&'ES

Reommen"e" Minimum

nsulation Resistane