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8 Star Energy Pty Ltd | Level 35, 477 Collins Street, Melbourne VIC 3000 | https://www.energizersolar.com
8 Star Energy ESS Ltd | The Black Church, St Mary’s Place, Dublin DO7 P4AX, Ireland
Star Energy, please do not try to open the
junction box cover by yourself.
7.3 Grounded
Energizer
Solar modules use an anodic oxidized
aluminum frame to resist corrosion. So the frame of
modules should be connected to the equipment
grounding conductor to prevent electrical shock. The
grounding device should fully make contact with the
inside of the aluminum alloy, and penetrate the
surface of the frame oxidation film.
The following is the specific grounding method, as
shown in Figure 13.
Figure 13 Use copper cables to ground
the aluminum frame
•
The grounding requirements must be
checked in accordance with the applicable
regulations and standards before work is
started.
•
Use the marked 5.5 mm grounding holes to
ground the anodized frame. Use one M5 nut,
two M5 cut washers, one M5 plain washer,
one M5 spring washer, and one M5 bolt and
the copper wire. All nuts, bolts, and washers
are type M5 and should be made of stainless
steel.
•
Put the bolt through the cup washer and
wrap the copper wire around the bolt. (Note
that the copper wire cannot be attached
directly to the aluminum.)
•
Put the bolt through the cut washer and then
through the hole in the aluminum frame.
•
Add the spring washer and nut on the other
side of the bolt and tighten to secure all parts.
The tightening torque should be 4~4.5 N•m.
•
Approve the use of
UL-467 certified bonding
and grounding devices,
including Burndy (formerly Wiley Electronics)
Washer Electrical Equipment Bonding
(WEEB) and similar devices, such as barbed
washers, that meet the requirements of
UL-467 as suitable for electrical bonding and
grounding PV modules to PV mounting
systems.
•
Other grounding methods may be allowable
when tested with the racking system per UL
2703 requirements.
•
Please don’t drill any additional grounding
hole on the frame of the modules.
•
The frame rails have pre-drilled holes
marked with a grounding sign. These holes
should be used for grounding purposes and
should not be used for mounting the
modules.
8 Maintenance
It is required to perform regular inspection and
maintenance of the modules, especially within
warranty scope. It is the user’s responsibility to the
report to the supplier regarding the damages found
in time.
8.1 Routine inspection
Regular inspections should be made to see if the
photovoltaic modules in the photovoltaic array are
damaged, such as glass breakage, cable breakage,
junction box damage, cell damage, backplane
