东方日升新能源股份有限公司
PV module installation and
maintenance manual
RISEN ENERGY CO.,LTD.
主导部门：组件研发中心
Page：NO.35 ,Total 41
temperature and they are sunlight resistant(UV). The cross-sectional area of the
cable is 4mm² or 12AWG, and the external diameter is 4mm-7mm. 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 possible maximum system
Voc ( as defined in TUV 2PfG1169 or EN50618 (H1Z2Z2-K)). Risen requires all cables
and electrical connections to comply with the electrical regulations of the countries
where the PV system is installed.
When selecting a cable, the minimum current-carrying capacity of the cable can be
calculated by the following formula.
Minimum current-carrying capacity of the cable = 1.25 x Isc x Np
Isc: short-circuit current of PV module (unit: A)
Np: the number of modules in parallel or module strings
To clear or trim excess cables and Risen recommends that all cables be placed in
proper pipework and away from standing water.
Risen recommends using lightning protection devices which are complied with
local laws and electrical regulations
10.1 Bypass secondary
If solar photovoltaic module part by shadow block, which can lead to reverse
voltage related to solar cells, solar photovoltaic modules in other unaffected battery
string or other solar PV modules in the system and current will force through keep
out part of the power loss and heat affected cell. When the solar photovoltaic
module is connected in parallel with the bypass diode, the current in the system will
flow directly through the diode, so as to bypass the blocked part of the solar
photovoltaic module and minimize the heating degree and power consumption of
the solar photovoltaic module.
Each module has three diodes. Each module has three diodes. Diode model, such
as 20 sq045 / SBRB2045S /SMBRB3045S /GF2045MG /SBRB3050TS
