Huawei SUN2000L Series - Connecting the Ground Cable

SUN2000L-(4.125KTL, 4.95KTL)-JP
User Manual
5 Electrical Connections
Issue 03 (2018-04-11)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
36
5.2 Connecting the Ground Cable
Context
It is recommended that the ground cable be connected to a nearby ground point. Connect the
ground points of all SUN2000Ls in the same PV array to ensure equipotential connections to
ground cables. Low-voltage SUN2000Ls are grounded in type C mode.
Procedure
Step 1 Crimp the OT terminal.

Pay attention not to damage the core wire when stripping a cable.

The cavity formed after the conductor crimp strip of the OT terminal is crimped must wrap
the core wires completely. The core wires must contact the OT terminal closely.

Wrap the wire crimping area with heat shrink tubing or PVC insulation tape. The
following figure uses heat shrink tubing as an example.

When using the heat gun, protect devices from being scorched.
Figure 5-3 Crimping an OT terminal
(A) Core wire
(B) Insulation layer
(C) Heat shrink tubing
(D) Hydraulic pliers
(E) Heat gun
Step 2 Connect the ground cable.