'UniG
-ZS1
'
'UniG
-ZV
C'
'UniG
-ZS1
'
'UniG
-ZS1
'
'UniG
-ZV
C'
'UniG
-ZV
C'
'UniG
-ZV
C'
'UniG
-ZS1
'
Any tightening torques which deviate from
those in the general recommendation above
(e.g. for contact systems or device terminals)
must be taken into account as stated in the
detailed technical documentation.
Access to busbars is possible from above after
dismounting of the pressure relief flap.
Clean the insulation on the busbar sections with
a soft, dry cloth, and check for insulation
damage. Remove greasy or adhesive dirt as
described in 9.3 Servicing.
Busbar connections:
•
The silver plated surfaces of the connections
must be cleaned with a metal-free non-woven
cleaning cloth and thinly and evenly coated
with Isoflex Topas NB 52 grease
•
Install the busbars panel by panel starting at
the bottom bar and working upwards. Screw
on the individual busbar elements one above
the other (depending on the system layout)
and in line with the flat branch conductor.
Use the hexagonal socket head screws
provided. See the table for the tightening
torque. Use two dished washers for each
screw
Note:
The connection of busbars is carried out with
so called “stabilized connections”. This means
that quality of the copper busbar connections
does not change depending on the operating
time and therefore it is not.
necessary to inspect tightness of busbar
connections regularly. But this is on condition
that correct assembly is carried out as
described above and especially that all
connections are tightened with the prescribed
torque.
We recommend only inspecting tightness of
busbar connections during repairs.
Replace pressure relief flaps ensuring the nylon
bolts are used for fixing the rear of the
pressure relief flap only.
6.6 Assemble pressure relief ducts
•
The pressure relief duct is supplied dismantled
in single parts. The rear and front wall
correspond, as far as length is concerned, with
the appropriate panel width. They are joined
together by means of the attachment strips
•
The screw fixing material is contained in the
“pressure relief duct” set of bags. Rivet nuts
are already provided in the metal sheets
Note:
Pressure relief locations in the switchroom are
shown on the General Arrangement drawings of
the contact. Refer to the figure below showing
a typical arrangement with standard arc ducts.
For more details of the assembly of UniGear
switchgear arc ducts, refer to document
1VLM000034.
6.7 Control cable connection
The control cables are conveyed into the panel
through the control wiring duct 6/18 on the
left-hand panel side.
Mounting procedure:
•
Insert the cables into the control wiring duct
6/18 on the left-hand
•
Fasten the control cables at the top end of
the duct, strip the insulation and convey
cable control cores into the low voltage
compartment D (4/12)
•
Connect control cables to the terminal strip
according to the circuit diagram
•
Make the control wiring connections to
adjacent panels using bushing 6/19
32
U N I G E A R Z V C
M E D I U M V O L T A G E P R O D U C T S
—
6/17 Typical
arrangement with
standard arc duct
—
6/17