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out maintenance work on the modules.
•
Do not touch the terminals while the module is exposed to light.
•
Install with suitable protection to redirect a discharge of 30 or more direct current
volts to if delivered any person on the installation team.
•
Please prevent adherent of oil such as paraffin liquid, animal oil and vegetable oil form
molding parts. It may be cracked or broken and loose the performance of Junction
Box and connectors.
4.2 System Grounding (Negative)
PM200M00/PM245P00/PM250M01
PM200M00/PM245P00/PM250M01
PM200M00/PM245P00/PM250M01
PM200M00/PM245P00/PM250M01/PM300P00
/PM300P00
/PM300P00
/PM300P00
BenQ Solar PV modules have a clearly marked grounding hole on each side of the frame for
inserting the ground contact. The grounding screw and bolt are separately used from the
mounting parts of the module.
Please make sure the grounding screw removes the anodizing from the surface of the
grounding holes, or scratch off the anodizing before the grounding connection is made since
the frame is fully insulated by anodizing.
An anti-oxidation compound should be applied to the bare aluminum surface for protection.
Using a layer of insulation is an especially critical step if the material of support structure is
different with the material of frame (aluminum).
If the support structure be a non conductor, a ground cable must be connected by means of a
suitable fastening system. The fastening system will be joined to a cable with a minimum
2.5mm
2
cross section, together with all the grounding conductors from each module. Please
make sure that each module is grounded properly. The recommended assembly of grounding
screw is shown below in Figure 5.
Figure
Figure
Figure
Figure 5
55
5 Recommended grounding connection
Per NEC 250.136, electrical equipment secured to and in electrical contact with a metal rack
or structure provided for its support and grounded by one of the means indicated in 250.134
shall be considered effectively grounded.
