TAVRIDA ELECTRIC ISM_LD Series, Application Manual

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Ins tallation of the CM: All Models
The installation of the CM is carried out according to the switchgear cubicle design either on the ISM or in
the low voltage compartment of the switchboard. It must in all cases be separated from the high voltage
compartment. The CM shall be installed in an earthed mild steel box with a thickness of not less than 1 mm if it
is attached to the ISM. See Chapter 8 for bolt hole patterns of all CM models.
It is recommended to shield the feeder cables for the CM controls, the CM-signalling and the ISM auxiliary switch
cables (if applicable). If these cables need to be in the high voltage compartment they shall be protected by an
enclosed metal duct.
The CM can operate in any mounting position. Care must be taken for good access and visibility of the terminals,
LEDs and setting elements for operation and maintenance. The ambient conditions as described in the chapter
“Regulations and ambient conditions”(page 64) shall apply.
Figure 50
Draw out type installation
Shielded cable
Secondary circuit plug
Secondary components
Closed steel box > 1 mm
4
5
6
7
Steel plate
> 1 mm thick
ISM
CM
1
2
3
2
5
6
3
7
4
1
3
Figure 51
Fixed type installation
4
2
3
4
1
7