03
电气装置
Electrical Installation
11
3.2 接地
Grounding
Ground hole Ground mark
组件边框上接地孔示意
Ground hole on the mdoule frame
接地线配合螺栓安装
Grounding by cable
接线鼻配合螺栓安装
Grounding by lugs
接地线配合螺栓安装：接地螺栓必须使用不锈钢材质，用在指定的接地孔上。首先插入M3.5不锈钢螺栓穿过弹簧垫圈，平垫
圈，杯形垫圈（直径2.1mm的铜导线），星形垫圈，然后通过边框的接地孔，平垫圈，弹簧垫圈，最后使用M3.5的螺母拧
紧， 请注意：导线的温度上限为85℃。
Grounding by cable:The grounding bolts must be made of stainless steel and be used in the specified grounding
holes. First, make the M3. 5 stainless steel bolt pass through the spring washer, flat washer, cup washer (copper
conductor with a diameter of 2.1 mm) and star washer, and then insert through the grounding hole, flat washer and
spring washer on the frame. Finally, tighten with a M3.5 nut. Caution: The upper limited temperature of the
conductor is 85℃.
接线鼻配合螺栓安装：接地导体必须通过一个适当的接地电极连接到地面。推荐使用接线鼻连接接地电缆。若没有通过螺栓和
螺母连接，仅机械地连接到已接地的组件上，支架也必须接地。首先将接地电缆头剥线合适的长度，剥线过程中注意不要损伤
金属线芯并将剥过线的接地电缆线头插入接线鼻的插口内，再将紧固螺钉拧紧。按照图11所示使用不锈钢螺栓和连接件将接线
鼻连接到铝边框上。M3螺栓推荐拧紧的力矩是2.3N
.
m。
The grounding conductor must be connected to ground via an appropriate grounding electrode. It is recommended
to use lugs to connect the grounding cables. I f it is only mechanically connected to a grounded module without
bolts and nuts, the mounting system should be grounded as well.First, peel the grounding cable to a proper length
without damage to the metal core. Then insert the peeled cable into the lug, tighten the screw. As shown in Figure
11, connect the lug to the aluminum frame with stainless steel bolts and connection components. The
recommended tightening torque for M3 bolts is 2.3N
.
m.
由于组件边框是采用阳极氧化的铝边框，因此在盐雾环境和其他金属接触时会产生电解腐蚀，因此如果条件具备，在组件边框
和支撑结构间应采用PVC垫片以防止电解腐蚀。所有用于接地线连接的螺栓、螺母、垫片应采用不锈钢材质，以保证接地有效
性。PV module frame is made of anodized aluminum. Corrosion can occur if PV module is subject to a salt-mist
environ- ment and is in contact with another type of metal(electrolytic corrosion). If condition permits, PVC washers
may be placed between PV module frame and support structure to prevent this type of corrosion. All bolts, nuts,
washers for grounding should be made of stainless steel, unless otherwise specified.
