www.znshinesolar.com
Document No.
：
QES/ZX-RD-III032A
- 23
have similar (or higher) specifications, and should have the suitable insulation ability which can suffer the possible
maximum system V
oc
(
as defined in TUV 2PfG1169 or EN50618 (H1Z2Z2-K)
)
. ZNSHINE SOLAR requires all
cables and electrical connections to comply with the electrical regulations of the countries where the PV system is
installed.
The electrical characteristics are within ±3 percent of the indicated values of Isc, Voc and Pmpp under test
conditions (irradiance of 1000W/m
2
, AM1.5 spectrum, and a cell temperature of 25
℃
)
Under normal conditions, a PV module is likely to experience conditions that produce higher current and/or
voltage than reported at standard test conditions. Accordingly, the values of I
sc
and V
oc
. marked on this PV
module should be multiplied by a factor of 1.25 at least when determining component voltage ratings, conductor
current ratings, and size of controls (e.g. inverter) connected to the PV output.
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*I
sc
*N
p
I
sc
: short-circuit current of PV module (unit: A)
N
p
: the number of modules in parallel or module strings
If the module is connected to the control box, you must choose the control box with LJQ-1
、
LJQ-3
、
PV-
HT03 type Connectors. To ensure proper system operation the correct cable connection polarity (Figures 1 & 2)
should be observed when connecting the modules to each other or to a load, such as inverter, a battery etc. If
modules were not connected correctly, the bypass diodes could be destroyed. PV modules can be wired in series
to increase voltage. A series connection is made when the wire from the positive terminal of one module is
connected to the negative terminal of the next module. A parallel connection is made when the wire from the
positive terminal of one module is connected to the positive terminal on the next module. Do not connect Fuse in
Combiner Box with two or more strings in parallel connection
.
The number of modules in series and in parallel shall be designed reasonably according to the system
configuration.
To clear or trim excess cables and ZNSHINE SOLAR recommends that all cables be placed in proper
pipework and away from standing water.
