Installation and Safety Manual of CIGS-3000A1&E1 Solar Photovoltaic Module
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disclosed in whole or in part without the prior written consent of ETERBRIGHT SOLAR CORPORATION.
A3-224
The system requires confirmation that the wiring is correct.
9.2 Grounding
Where common grounding hardware (nuts, bolts, star washers, spilt-ring lock washers,
flat washers and the like) is used to attach a listed grounding/bonding device, the
attachment must be made in conformance with the grounding device manufacturer’s
instructions.
The ground wire must not be smaller than No.12 AWG (4 mm²), and insulation
resistance must beat least 90°C
, or
according to local regulations, e.g. the NEC
(National Electric Code) in the United States.
If the building is already equipped with an exterior lightning protection system, the PV
installation must be integrated into the protection system against direct effects of
lightning.
There are six 4mm [Φ4mm] grounding holes with earth symbols
○
⏚
each
on the long
frame of module; the module frame MUST BE properly grounded.
Use an M4 stainless steel bolt and pass through a diameter M4 stainless steel cup-
washer, use the 12AWG(4mm²) copper wire wound on the bolt, then pass it through
theM4stainless steel flat washer, and place the bolt through the grounding hole of the
frame, M4 stainlessstarwasher,M4stainless steel flat washer, and finally with a M4 nut
use about3 ~ 4Nm (22.1 ~ 22.6 lb-in)of torque to lock onto the frame.
Common hardware items such as nuts, bolts, star washers, lock washers and the like
have not been evaluated for electrical conductivity or for use as grounding devices and
