Installation and maintenance instructions UniGear type ZS2 UniSafe-36 1YTW571780-012 Rev:E 01-2005 en Page: 17 of 25
1) Mark and prepare holes on the aluminium bottom plates
2) Pull the cable into the cable compartment and make a termination according to the suppliers instructions.
3) put a transparent hose onto the earthwire and connect it to the earth-bar.
4) Bring the cable to a final position and fix it with clamp such that connection points are not forced.
5) Tighten connections considering the table below.
6) For the fig 2.7.3 1200mm wide cables compartment install the insulated plates (4pcs) between phases
with screws of insulating material
Due to limited dimensions of switchgear cables compartment, number and size of cables must be complied
and minimum length of bolt etc. must be used not to decrease clearances between phases and earth.
Refer to order bound instructional drawings for cases other than above.
2.8 Final Tightening
Tolerance: -0% ... +20% M6 M8 M10 M12 M16
General assembly with steel bolts and nuts of min 8.8 property
class, mechanical and electrical connections
9 22 45 75 185
Main busbars assembly, conductors supported by epoxy
components with steel or brass nut-threads with conical
spring-steel washer DIN6796, thread and bolt head contact
surface * LUBRICATED with grease or oil (ref:DIN 43673)
* 4.5
* 10
* 20
* 40
* 80
2.9 Control Cables
The control cables will be terminated in the low voltage compartment. When they enter from the basement
they can run inside the front part of the end panels. The control cables will then follow the cable duct on top
of the low voltage compartments to the intended cubicle. There is a slot for cable entrance where the cables
can be fixed. Earth connections shall be done at the copperbar that is located close to the fixing point.
Fig:2.9.1
Fig:2.9.2
Fig:2.9.3
Fig:2.9.4
Fig:2.9.5
*
300x50mm
**
600x30mm
**** dia.
60mm
***
300x50mm
* Main horizontal channel at top of low voltage compartments
** Vertical channel between low voltage comp and main horizontal channel
*** Main vertical channel inside end-covers at left&right extremity panels
**** Vertical holes for aux cables rising through the floor (option)
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