文件编号
Document No.
：
SP/WI-JS-010
- 29 -
的电压升高，太阳能光伏组件最大串联数量可以使用以下公式计算：
Table 5-4 maximum series connection number calculation
Table 5-4
串联最大数量计算
Formula
公式
Maximum system voltage V ≥ N
*
V
oc
*
[1+β
*
(T
min
-
25)]
最大系统电压
V ≥ N
*
V
oc
*
[1+β
*
(T
min
-
25)]
V
Maximum system voltage
最大系统电压
N
The number of maximum Solar PV modules in series
能串联在一起的组件的最大数量
V
oc
The open circuit voltage of each module (see product label or datasheet)
STC
条件下组件的开路电压（可以查看组件的标签或者规格书）
β
Temperature coefficient of open circuit voltage of the module (refer to datasheet)
组件的开路电压的温度系数（请参考组件的规格书）
T
min
The lowest ambient temperature at installation site
组件安装地的最低环境温度
If the modules are allowed to be installed in parallel electrically, each module (or series string of modules so
connected) shall be provided with the maximum series fuse as specified. For applications requiring high currents,
several photovoltaic modules can be connected in parallel; the total current is equal to the sum of individual
currents, each module (or series string of modules so connected) shall be provided with the maximum series fuse
as specified. The recommended number of module in parallel is only one. The modules’ electrical performance in
a system is the same. When connected in series, all modules must have the same amperage. When connected in
parallel, the modules must all have the same voltage. Connect the quantity of modules that match the voltage
specifications of the devices used in the system. The modules must not be connected together to create a voltage
that is higher than the permitted system voltage.
如果允许组件并联安装，则每个组件
(
或串联的组件串
)
应按规定配置最大串联保险丝。对于需要大电流的应用，
多个光伏组件可以并联；总电流等于各电流之和，每个组件
(
或串联的组件串
)
应按规定配置最大串联保险丝。推荐
的组件并联数只有一个。组件在系统中的电气性能是相同的。串联时，所有组件必须具有相同的安培数。当并联时，
所有组件必须具有相同的电压。连接组件的数量与系统中使用的设备的电压规格相匹配。组件不能连接在一起以产
生高于允许的系统电压的电压。
Product can be irreparably damaged if an array string is connected in reverse polarity to another. Always
verify the voltage and polarity of each individual string before making a parallel connection. If you measure a
reversed polarity or a difference of more than 10V between strings then check the string configuration before
making the connection.
如果一组阵列以相反极性连接到另一个，则会对产品造成无法修复的损坏。在进行并联之前，请务必确认各列
的电压和极性。 如果测量发现各列之间的极性相反或电压差值大于
10V
，则在进行连接之前检查其结构配置。
Before wiring the module, ensure that the contact points are corrosion resistant, clean and dry; If a string of
modules is reversed, irreparable damage can be caused.
在组件布线之前，请确保接触点是耐腐蚀、清洁和干燥的；如果一个组件串正负极反接，可能会造成无法弥补
的损害。
Each YuHuan Sunpro Solar PV module has two PV cables which can withstand 85
℃
temperature and they
are sunlight resistant(UV). The cross-sectional area of the cable is 4mm² or 12AWG, and the external diameter is
5mm
～
7mm. The minimum bending radius of the cables must be 43mm. Any cable damage caused by bending
too much or cable management system is not covered under YuHuan Sunpro Power Solar’s warranty. Plug &
Play connectors are included at the end of each cable. All other cables used to connect the direct current system
shall have similar (or higher) specifications, and should have the suitable insulation ability which can suffer the
