Last revised: May 17, 2013
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3.
3.
3.
3.
Use correctly rated materials
Use correctly rated materials
Use correctly rated materials
Use correctly rated materials
Use special solar cable and suitable connectors only. Ensure that they are in perfect
electrical and mechanical condition. Use only single wire cables. Select a suitable
conductor diameter to minimize voltage drop.
4.
4.
4.
4.
C
C
C
Cable protection
able protection
able protection
able protection
Secure the cables to the mounting system using UV-resistant cable ties. Protect exposed
cables from damage using suitable precautions. Avoid direct exposure to sunlight.
4.3 Limitation of Connection (ETL)
The UL 1703 certificate of these modules guarantees their insulation up to a DC voltage of
1000 V (UL 1703 Standard).
However, a cable with a suitable cross section must be used for conducting the sum of the
currents as generated by the modules. A series protection fuse of 15A is recommended for
each string when module strings are wired in parallel.
BenQ Solar recommends the PV conductor, which cross section is 4 mm2. External
connection boxes can be used to enable greater cable cross section area for long distance
transmission.
The modules are qualified for the application class A: Hazardous voltage (IEC 61730: higher
than 50V; EN 61730: higher than 120V), hazardous power applications (higher than 240W)
where general contact access is anticipated.
