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please do not plug or unplug the connector. When it
is necessary to open the connector, ensure that the
photovoltaic module is in a non-working state, and
must use professional unlocking tools and safety
protection measures. It is forbidden to pull or
damage the locking structure.
The junction box of the photovoltaic module
contains bypass diodes connected in parallel to the
battery string of the photovoltaic module. The
bypass diode in the junction box can avoid the
degradation of photovoltaic module performance
caused by shading or covering. Please refer to the
junction box diode specifications provided in the
relevant product specifications.
When a local hot spot phenomenon occurs due to
partial shading or covering of the photovoltaic
module, the diode in the junction box will start to
work, so that the photovoltaic module current will
no longer flow through the hot spot cell, thereby
limiting the heating and performance loss of the
photovoltaic module. When you suspect or find that
the diode is malfunctioning, please contact Chint,
please do not try to open the junction box cover by
yourself.
6.3
Grounded
Chint 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 thunder and electrical
shock. The grounding device should fully 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
