User guide

3-4 Installation – Arc Resistant (ArcShield)
1512A-UM102B-EN-P –Jun e 2013
Figure 3.3 – Label on Arc Resistant Door
I M P O R T A N TI M P O R T A N T
The last step in closing the medium voltage door,
ensure all door locking bolts on the right side of the
MV door are in place and tightened until the door is
flush with the flange. Do not over tighten the bolts.
If the door is not securely fastened, it will not be
possible to move the isolation switch handle to the
ON position.
Do not attempt to rotate the arc latching handle until
the locking bolts are tightened (refer to Figure 3.3)
The arc latching mechanism can be damaged by
Door Opening Procedure
(cont.)