ABB PrimeGear ZX0 Product Manual page 24

24 PrimeGe ar Z X0 P R O D U C T M A N U A L
2.3.4.2 Assembling the busbar
The stud bolts (8) have been fitted as described in
section 2.3.1.3. The insertion depth of the stud
bolts and the centre to centre distances have been
checked in accordance with table 2.3.2.1.

Assemble the busbars considering the assembly
instruction delivered by the manufacturer. The
assembly instruction is part of the busbar delivery.
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Fig.: 2.3.4.3.1: Earthing
the busbar
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Fig.: 2.3.4.3.1
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Table 2.3.4.3.1: Earthing sets and clamps by type of use
Description
Earthing set for all cross and end adapters
Earthing set for busbars, 1250 A
Note on installation of the insulating plugs:
if the pick-off for capacitive indication of
the busbar voltage is to be installed on
the panel concerned, use insulating plugs
marked "MP" (see section 2.3.4.4). These
insulating plugs contain the capacitive
pick-off.
Earthing clamp A
Earthing lug
Earthing clamp B
2.3.4.3 Earthing the busbar
The busbar adapters are to be earthed at the
earthing lugs and additionally by means of
earthing clamps. Depending on the position and
design of the bars, the corresponding clamps as
shown in Fig.2.3.4.3.1 are to be used. The earthing
sets listed in table 2.3.4.3.1 contain the earthing
material (clamps, earthing leads and
materials for fastening to the clamps) for three
phases. The adapters are supplied with earthing
leads pre-assembled to the earthing lugs. The
material for fastening the earthing leads to the
enclosure is provided separately.
Earthing clamp B
Use in Fig.2.3.4.3.1 Diameter, closed/mm
Earthing clamp A 77
Earthing clamp B 54
Earthing clamp A
Earthing lug
Earthing clamp B
NKT part number for 3-phase set
26 587 05
26 587 39