Opening The Maintenance Compartment Door - Huawei SUN2000-90KTL Series Quick Manual

4.2 Installing the PE Cable (on the Enclosure)
•
It is recommended that the PE cable
be connected to a nearby PE point.
Connect the PE points of all
SUN2000s in the same PV array to
ensure equipotential connections to PE
cables.
•
To enhance the corrosion resistance of
a ground terminal, you are advised to
apply silica gel or paint on it after
connecting the PE cable.
4.3

Opening the Maintenance Compartment Door

•
Do not open the host panel of the SUN2000.
•
Before opening the SUN2000 maintenance compartment door, turn off the downstream AC
output switch and two DC switches at the bottom.
•
Do not open the maintenance compartment door in rainy or snowy days. If you must, take
protective measures to prevent rain or snow from entering the maintenance compartment.
•
Do not leave unused screws in the maintenance compartment.
1. Loosen the screws on the maintenance
compartment door.
3. Remove the cover and hang it on the hook of the enclosure door.
Reserved PE point
2. Open the maintenance compartment door
and adjust the support bar.
5