Installing The Base And The Pressure Relief Duct For The Pressure Absorber System (Iac Up To 21 Ka) - Siemens 8DJH Installation And Operating Instructions Manual

7.12 Installing the base and the pressure relief duct for the pressure
500-8384.9 • Version 11 • Installation and Operating Instructions • 8DJH
1. Mount 2 fixing brackets for the pressure relief duct of the switchgear on the rear wall using
6 self-tapping bolts M6 each.
2. Bolt the pressure relief duct together at the 2 fixing brackets using 6 self-tapping bolts M6
each.
12x
Fig. 37: Mounting the fixing brackets
Rear wall of frame
1
Fixing bracket
2
Pressure relief duct
3
absorber system (IAC up to 21 kA)
Switchgear installation with pressure relief duct pre-assembled at the factory or supplied
separately for switchgear with IAC A FL or FLR up to 21 kA/1s.
IAC A FL up to 21 kA/1s
Panels in wall-standing arrangement
(except metering panels)
Height 1800 mm
Switchgear with pre-assembled base and pressure relief duct:
1. Set the switchgear onto the foundation or the foundation rails, align it and bolt it tight.
2. Install the pressure absorber top unit [▶ Page 64, "Installing the top pressure absorber unit
(IAC up to 21 kA)"].
Fig. 38: Mounting the pressure relief duct
IAC A FLR up to 21 kA/1s
Panels in free-standing arrangement
Height 2300 mm
Installation | 7
12x
Metering panels in wall-standing and
free-standing arrangement
Height 2300 mm
59/174