Installing Busbars

Assemble the busbar connection while installing each cubicle.

NOTE: Retrieve the following components:

The main busbar in the cubicle packaging, and
The busbar shims and hardware bag in the cubicle packaging.

Access the busbars through the side access of the cubicle.

NOTE: It is also possible to reach the busbar from within the cubicle. Refer to Access to the Busbar Compartments, User Guide (BQT6904800).
Place the busbar between the two previously assembled cubicles.

NOTE: Repeat the above operations each time a switchboard cubicle is placed.
For standard torque values, refer to Standard Tightening Torques and comply with the specified torque values.

Center Cubicle

Figure 27
D Shape Busbar Arrangement of 2500 A for 2500 A Feeder

1	Nut M12	5	Bolt M12 x 60
2	Washer M12	6	Boot cover⁽¹⁾
3	Spacer	7	Boot
4	D shape busbar	8	Droppers

⁽¹⁾ Knock-out the D-shaped busbar entry section from the boot cover on site.

Figure 28
D Shape Busbar Arrangement of 2500 A for 1250 A Feeder

1	Nut M12	5	D shape busbar
2	Washer M12	6	Screw M12 x 55
3	Tubular dropper	7	Boot
4	Spacer

Figure 29
Flat Busbar Arrangement of 2500 A for 2500 A Feeder

1	Nut M12	5	Spacer
2	Washer M12	6	Screw M12 x 70
3	Flat busbar	7	Boot cover⁽¹⁾
4	Droppers	8	Boot

⁽¹⁾ Knock-out the flat busbar entry section from the boot cover on site.

Figure 30
Flat Busbar Arrangement of 2500 A for 1250 A Feeder with Tubular Droppers

1	Nut M12	5	Tubular dropper
2	Washer M12	6	Screw M12 x 70
3	Flat busbar	7	Boot
4	Spacer

Figure 31
Flat Busbar Arrangement of 2500 A for 1250 A Feeder with Flat Droppers

1	Nut M12	5	Flat dropper
2	Washer M12	6	Screw M12 x 60
3	Flat busbar	7	Boot cover⁽¹⁾
4	Spacer	8	Boot

⁽¹⁾ Knock-out the flat busbar entry section from the boot cover on site.

Figure 32
Flat Busbar Arrangement of 1250 A for 1250 A Feeder with Flat Droppers

1	Nut M12	5	Screw M12 x 55
2	Washer M12	6	Boot cover⁽¹⁾
3	Flat dropper	7	Boot
4	Flat busbar

⁽¹⁾ Knock-out the flat busbar entry section from the boot cover on site.

Figure 33
Tubular Busbar Arrangement of 1250 A for 1250 A Feeder with Tubular Droppers

1	Screw M12 x 55	4	Tubular dropper
2	Washer M12	5	Nut M12
3	Tubular busbar	6	Boot

Figure 34
Flat Busbar Arrangement of 1250 A for 1250 A Feeder with Tubular Droppers

1	Nut M12	5	Flat droppers
2	Washer M12	6	Screw M12 x 55
3	Tubular dropper	7	Boot
4	Spacer

End Cubicle

Figure 35
D Shape Busbar Arrangement of 2500 A for 2500 A Feeder

1	Nut M12	5	Bolt M12 x 60
2	Washer M12	6	Boot cover⁽¹⁾
3	Spacer	7	Boot
4	D shape busbar	8	Droppers

⁽¹⁾ Knock-out the D-shaped busbar entry section from the boot cover on site.

Figure 36
D Shape Busbar Arrangement of 2500 A for 1250 A Feeder

1	Nut M12	5	D shape busbar
2	Washer M12	6	Screw M12 x 55
3	Tubular dropper	7	Boot
4	Spacer

Figure 37
Flat Busbar Arrangement of 2500 A for 2500 A Feeder

1	Nut M12	5	Spacer
2	Washer M12	6	Screw M12 x 70
3	Flat busbar	7	Boot cover⁽¹⁾
4	Droppers	8	Boot

⁽¹⁾ Knock-out the flat busbar entry section from the boot cover on site.

Figure 38
Flat Busbar Arrangement of 2500 A for 1250 A Feeder with Tubular Droppers

1	Nut M12	5	Tubular dropper
2	Washer M12	6	Screw M12 x 70
3	Flat busbar	7	Boot
4	Spacer

Figure 39
Flat Busbar Arrangement of 2500 A for 1250 A Feeder with Flat Droppers

1	Nut M12	5	Flat dropper
2	Washer M12	6	Screw M12 x 60
3	Flat busbar	7	Boot cover⁽¹⁾
4	Spacer	8	Boot

⁽¹⁾ Knock-out the flat busbar entry section from the boot cover on site.

Figure 40
Flat Busbar Arrangement of 1250 A for 1250 A Feeder with Flat Droppers

1	Nut M12	5	Screw M12 x 55
2	Washer M12	6	Boot cover⁽¹⁾
3	Flat dropper	7	Boot
4	Flat busbar

⁽¹⁾ Knock-out the flat busbar entry section from the boot cover on site.

Figure 41
Tubular Busbar Arrangement of 1250 A for 1250 A Feeder with Tubular Droppers

1	Screw M12 x 55	4	Tubular dropper
2	Washer M12	5	Nut M12
3	Tubular busbar	6	Boot

Figure 42
Flat Busbar Arrangement of 1250 A for 1250 A Feeder with Tubular Droppers

1	Nut M12	5	Flat droppers
2	Washer M12	6	Screw M12 x 55
3	Tubular dropper	7	Boot
4	Spacer

BSC - BSR Cubicle

Figure 43
Tubular Busbar Arrangement of 1250 A for 1250 A BSC - BSR with Flat Droppers

1	Flat dropper	4	Nut M12
2	Tubular busbar	5	Screw M12 x 55
3	Washer M12	6	Boot

Figure 44
Flat Busbar Arrangement of 2500 A for 2500 A BSC - BSR with Flat Droppers

1	Droppers	5	Spacer
2	Flat busbar	6	Screw M12 x 70
3	Washer M12	7	Boot cover⁽¹⁾
4	Nut M12	8	Boot

⁽¹⁾ Knock-out the flat busbar entry section from the boot cover on site.