BQT6904400-03

Fastening of the Cubicles

WARNING
hazard of installing under inadequate conditions
Do not allow a cubicle to be raised after the next one is installed to avoid vibrations caused by load.
Failure to follow these instructions can result in death, serious injury, or equipment damage.
NOTICE
hazard of installing under inadequate conditions
  • Before positioning the switchgear at its installation site, ensure that the fastening points are at the correct level.
  • Unevenness should not exceed ± 2 mm/m and there should not be a height difference of more than 6 mm over the entire width of the switchgear.
Failure to follow these instructions can result in equipment damage.
NOTICE
hazard of inappropriate assembly
Comply with precise measurements for the placement of the cubicle, as the positioning of the first cubicle determines the placement of the remaining cubicles.
Failure to follow these instructions can result in equipment damage.

Fastening on Concrete Foundations

Follow the below steps to fasten the cubicle to the floor on standard civil engineering works:

  1. Position first cubicle on the floor in accordance with the switchgear-specific space assignment plan, refer to Ground Plan of a MCSeT Switchgear within a Switchgear Room

    .
  2. Remove the cable compartment cover. Refer to Access to the Cable Compartments, User Guide (BQT6904800).

  3. Once the cubicle is positioned:

    • Verify that the cubicle front is correctly aligned both horizontally and vertically.

    • If necessary, raise the cubicle and insert shims below the cubicle near the fastening points until the correct horizontal position is achieved, refer to Figure 27

      .

  4. Fasten the cubicle with screws to the two fastening points on both the front end and the rear end.

Figure 27
Cubicle Fastening on Concrete Foundations

1

Screw M10 x 30

4

Shim plate(1)

2

Spring lock washer M10

5

Slotted set screw M10 x 30

3

Plain washer

6

Plate 3 mm

(1) Add shim plates as needed.

Additional Fastening Variants (C-Channel)

The additional fastening variants are available on request. For details, contact the manufacturer.

Follow the below steps to fasten the cubicle on C-channel rails on standard civil engineering works:

  1. Drill holes into the C-channel frames at the intended cubicle fastening points, refer to Figure 28.

  2. Position the cubicle on the C-channel rails, aligning the fastening points.

  3. Insert dowel pin and other suitable fasteners (provided by Schneider Electric) refer to Figure 29.

  4. Securely fasten the cubicle to the C-channel rails at the designated points.

NOTE:
  • The additional fastening variants are available on request. For details, contact Schneider Electric.

  • C-channel rails are not be provided by Schneider Electric.



Figure 28
Dimension of the Floor Space and C-Channel Rails


Rated voltage (kV)

Dimensions (mm)

A

B

C

7.2/12/17.5

1340

1290

1240

24

1800

1750

1700

Figure 29
Cubicle Fastening on Base Frame

1

Allen screw M12 x 45

4

Dowel pin

2

Washer M12

5

C-channel rail

3

Square washer

   

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