No. Cable Category Conductor
Cross-Sectional
Area Range
Outer
Diameter
Source
AC output
power cable
(single-core)
You are advised to use a
single-core outdoor cable
and M12 OT/DT
terminals.
● Copper cable:
– S: 70–240
mm
2
● Aluminum
alloy cable or
copper-clad
aluminum
cable:
– S: 95–240
mm
2
14–32 mm Prepared
by the
customer
● The value of S
p
is valid only if the conductors of the PE cable and AC power cable use the
same material. If the materials are dierent, ensure that the conductor of the PE cable with a
proper cross-sectional area produces a conductance equivalent to that of the cable specied in
the table.
● The specications of the PE cable are subject to this table or calculated according to IEC
60364-5-54.
● The cable diameter must comply with local cable standards.
● The factors that
aect cable selection include the rated current, cable type, routing mode,
ambient temperature, and maximum expected line loss.
5.3 Connecting the PE Cable
Context
● Proper grounding is helpful for resisting the impact of surge voltage and
improving the electromagnetic interference (EMI) performance. Before
connecting the AC power cable, DC power cables, and communications cable,
connect the PE cable to the PE point.
● It is recommended that the PE cable of the solar inverter be connected to a
nearby ground point. Connect the PE points of all solar inverters in the same
array to ensure equipotential connections to PE cables.
Procedure
Step 1 Connect the PE cable to the PE point.
SUN2000-(100KTL, 110KTL, 125KTL) Series
User Manual 5 Electrical Connections
Issue 07 (2020-09-15) Copyright © Huawei Technologies Co., Ltd. 49
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