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4.6
Use of keylocks
There are 4 type of keylocks. See Pict. 55.
The function of 4 keylocks is described hereunder:
Fig. 55
A
C
H
E
B
D
4 Operations on switch disconnector
C
Keylock with switch open:
When the switch is open, turn the key anticlockwise and remove
it in order to prevent the closing of circuit.
H
Keylock with switch closed:
When the switch is closed, turn the key clockwise and remove
it in order to prevent opening of circuit.
D
Keylock with earthing switch open:
When the earthing switch is open, turn the key
anticlockwise and remove it in order to prevent earthing.
E
Keylock with earthing switch closed:
When the earthing switch is closed, turn the key clockwise
and remove it in order to prevent the opening of the earth switch.
Summary of Contents for QMT Series
Page 1: ...Y4419D 01GF 18W12 QMT Manuale installatore Installation manual ...
Page 2: ...2 IT UK ITALIANO 3 ENGLISH 45 QMT ...
Page 15: ...Quadri Media Tensione QMT Manuale installatore 15 Tipo 2 Tipo 3 Tipo 4 ...
Page 44: ......
Page 57: ...Medium voltage switchgear QMT 57 Installation manual Type 2 Type 3 Type 4 ...
Page 86: ...86 Notes ...
Page 87: ...87 ...