Installation
144/293 Revision 11 • INSTALLATION AND OPERATING INSTRUCTIONS • NXPLUS C • 802-9081.9
15.13 Mounting the busbar covers
Fig. 102: Position of the component number (arrow)
Preconditions • Panels are mounted and bolted together.
• Panels are fastened to the foundation.
• Voltage transformers (option) are mounted at the busbar.
• Identify the busbar cover components to be mounted for the individual panel using the
corresponding component table:
INFORMATION
On panels with a panel width of 900 mm, additional air guides must be mounted after
mounting the busbar covers, see page 151, "Mounting the air guides".
INFORMATION
The components of the busbar cover are delivered with the switchgear accessories and are
marked with a component number. With the following component tables, the component
numbers of the components required for the corresponding panel can be identified.
INFORMATION
Before mounting the busbar covers, the following information must be at hand for each panel:
• Is the panel equipped with a pressure relief duct (yes or no)
• Is the panel equipped with voltage transformers at the busbar (yes or no)
• Panel width (450 mm, 600 mm or 900 mm)
• Height of low-voltage compartment (760 mm or 1160 mm)
• Degree of protection of the panel (IP3XD, IP31D, IP32D or IP34D, see single-line diagram)
• Busbar current (see single-line diagram)
• Feeder current (see single-line diagram)
• Type of installlation of the switchgear (wall-standing arrangement or free-standing
arrangement)
①
Height of low-voltage compartment
②
Panel width
③
Pressure relief duct
④
Voltage transformers at the busbar
⑤
Busbar cover
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