Medium voltage products
UniSec
Installation manual
Safety 3
For your safety! 3
Skilled personnel 3
Crucial information 3
Contact us! 3
1. Introduction 4
1.1 General aspects 4
1.2 Installation manual 4
2. Product information 5
2.1 Unit dimensions 5
2.2 Weights 6
3. Transport and storage 7
3.1 Condition on delivery 7
3.2 Unpacking at installation site 7
3.3 Handling the units as far as the installation site 8
3.4 Temporary storage 10
3.5 Delivery responsibilities 10
4. Assembly of the switchgear on site 11
4.1 General warnings and cautions 11
4.2 Preparations 11
4.3 Dimensional foundation drawings 11
4.4 Foundations 15
4.5 Installation procedure for units 15
4.6 Gas vent ducts 26
4.7 Coupling the units with switch-disconnector
to WBC-WBS units 29
4.8 Coupling the units with switch-disconnector
to WBC unit 24 kV 30
5. Cable connections 31
5.1 Installing the cables 31
5.2 Control cables 37
5.3 Earthing the switchgear 37
5.4 Final installation work 38
A. Tightening torques for steel screws and nuts/bolts 39
B. Tools required for installation 42
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