Assembling the panels
110-0084.9 / 15 NXAIR / ≤ 40 kA 91
Bolted joints in the pressure relief duct (PRC) area
Sharp-edged sheets
The metal parts of the pressure relief duct may have sharp edges. Sharp-edged
sheets inside the switchgear can cause injuries by getting cut and damage cables.
Put on personal protective equipment (e.g. cut-resistant gloves and arm
sleeves).
When working inside the switchgear, it must be observed that cables do not
touch any sharp-edged sheets. Cover sharp-edged spots, if required.
Foreign objects
Possible malfunctioning and switchgear damage caused by foreign objects.
Remove all foreign objects from the PRC, e.g.:
• Tools
• Unused installation material
• Packing material
• Cleaning material
Bolt two panels together in the lower area of the PRC and on the left and right side of the PRC,
using 14 bolts M8x20, contact washers and nuts.
Fig. 110: Bolted joints inside the PRC
Bolt two panels together in the upper area of the PRC, using 8 bolts M8x20, contact washers
and nuts.