Requirements Regarding the Switchgear Room
Before installing the switchgear panels:
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Refer and comply with the switchgear room measurements mentioned in the document.
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Observe the minimum distance between the switchgear and the wall of the building.
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The load-bearing capacity of the fastening areas must correspond to the weight of the switchgear (perform a stress analysis of the building).
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Check base frame (if used) for dimensions and positional tolerances.
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Check position of floor openings for high-voltage and low-voltage cables.
Before the switchgear is positioned at its site of installation, check that the fastening points are level. Unevenness must not exceed ± 2 mm/meter and 6 mm difference in height over the entire switchgear width.
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Pressure relief |
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Outside the building only |
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Tunnel |
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Basic structure panels |
Pressure relief |
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Outside the building only |
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Tunnel |
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Ur |
H |
LV |
H3 |
T |
H1 |
H2 |
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12 kV |
2130 |
530 |
2130 |
330 |
290 |
2750 |
|
630 |
2230 |
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730 |
2330 |
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17 kV |
2200 |
600 |
2200 |
330 |
220 |
2750 |
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700 |
2300 |
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800 |
2400 |
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24 kV |
2330 |
530 |
2330 |
330 |
90 |
2750 |
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630 |
2430 |
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730 |
2530 |
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| H |
Panel height, basic structure |
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LV |
LV box height |
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H3 |
Basic panel including LV box height |
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T |
Tunnel height |
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H1 |
Distance to ceiling |
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H2 |
Height of ceiling |
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Tunnel |
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R |
Distance to rear wall |
>100 mm |
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D |
Width of control aisle |
1500 mm |
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Panel replacement |
2000 mm |
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(1) With standard LV cabinet 530 mm. Increased height of LV cabinet is available, without impact on the ceiling height. |
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(2) Height of 30mm for AVVS is considered. |
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(3) Minimum 90 mm. |
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Ground Plan of a PIX Switchgear within a Switchgear Room
Figure 39
Design example: The switchgear
is located in the left-hand corner of the room
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1 |
Bore-hole for fastening of panel |
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2 |
Switchgear side wall |
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3 |
Openings for routing external low-voltage cables |
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4 |
Openings for routing high-voltage cables |
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5 |
Reserved (100 x 100 mm) for the connection of the earth bus of the switchgear to the building’s earth cable |
Ground Plan of the Panels
Figure 40
Dimensions (example: PIX 12 panels)