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(0.197'' diameter (5.0 mm)).
Star
washers
must
be
contact
through
the
anodization
module for this method.
In this case, the screw threads are not
providing the electrical ground contact.
Using lay-in lug with self tapping machine screw
If
using
this
method,
instructions
in
previous
using self-tapping machine screws.
Use a grounding tin plated solid copper
lay-in
lug
rated
for
outdoor use. Lug must be used ILSCO
GBL-4DBT, Burndy CL501TN.
The self-tapping machine screw size must
be No.10 (0.190'' diameter (4.83mm)).
This method requires a minimum number of
threads-per-inch to achieve an adequate
electrical
connection.
machine screws, the thread pitch must be
at least 32 threads per inch (TPI). A
single screw less than 32 TPI does not
provide sufficient thread contact. Note: Self-
tapping
machine
screws
thread cutting screws.
As shown in figure 3.4, attach grounding
lug to module frame using a stainless steel
self-tapping machine screw.
Insert a stainless steel star washer between
the module frame and the lug to penetrate
frame anodization.
Tighten stainless steel set screw at the
torque
specified
by
lug
secure copper wire.
The specified torque is following
Ilsco
Corp.
10-14AWG-Solid
4-6AWG-Strand
8AWG-Strand
->
14AWG-Strand -> 20 in-lbs
Burndy L L C CL501TN 14AWG-
Solid
->
14AWG-Strand
->
4AWG-Strand -> 45 in-lbs
Recommended
torque
value
self-tapping machine screw is 2.3 N.m
(20in-lb).
Using a lay-in lug with bolt and nut
If
using
this
method,
instructions
in
previous
using bolts and nuts with larger grounding
holes.
Use a grounding tin plated solid copper
lay-in
lug
rated
for
outdoor use. Lug must be used ILSCO
GBL-4DBT, Burndy CL501TN.
Attach grounding lug to module frame using
used
to
make
a
of
the
shown in figure 3.5.
Tighten stainless steel set screw at the
torque
secure copper wire.
Recommended
bolt and nut is 2.3 N.m (20in-lb).
please
follow
section
regarding
Using a Grounding Clip with self- tapping
machine screw
Use
direct
burial
and
grounding clip.
As
grounding clip onto the module frame.
Thread the screw into the hole until the
head is flush with the base and base is
flush with the frame, then tighten the screw
with
For
self-tapping
Recommended
self-tapping machine screw is between 2.3
and 2.8 Nm.
Insert the wire into the wire slot. Press
down on both ends of the wire.
are
also called
Manually, or using channel lock pliers, push
the slider over the base until it covers the
base. This will terminate the wire.
For
Instruction sheet issued by Tyco Electronics.
Using a Grounding Clip with bolt and nut
Use
grounding clip.
manufacturer
to
As
grounding clip onto the module frame.
Thread the hex nut onto the end of the
GBL-4DBT
screw,
->
20
in-lbs,
tighten
->
35
in-lbs,
Recommended
25
in-lbs,
10-
bolt and nut is between 1.7 and 2.2 Nm.
Insert the wire into the wire slot. Press
down on both ends of the wire.
35
in-lbs,
Manually, or using channel lock pliers, push
35
in-lbs,
the slider over the base until it covers the
base. This will terminate the wire.
in
tightening
For
Instruction sheet issued by Tyco Electronics.
Module Terminations
please
follow
A junction box as a terminal enclosure is
section
regarding
equipped for electrical connections.
VBHNxxxSA11 and VBHNxxxSA11B Modules are
equipped
enclosure. Use these MC
direct
burial
and
connections (see Figure 4.1).
Junction Box and Terminals
stainless
steel
bolt
and
lock-nut
specified
by
lug
manufacturer
torque
value
in
Tyco
Electronics
1954381-1
shown
in
figure
3.6,
1/4
to
1/2
torque
value
in
more
information,
please
Tyco
Electronics
1954381-2
shown
in
figure
3.7,
then
using
a
3/8-in.
the
torque
value
in
more
information,
please
TM
with
MC
plugs
as
TM
plugs for electrical
7
Modules are equipped with one junction box
as
containing terminals for both, positive and
negative polarity, and bypass diodes.
Each terminal is dedicated to one
to
with the polarity symbols engraved onto the
body of the junction box (see Figure 4.2).
tightening
Each
terminal
installed
lead
connector for series and string connections.
Always use these connectors and do not
detach them from cables.
as
Latching connectors are type IV and made
by Multi-Contact. Supplied connectors listed
place
the
by UL.
In order to comply with NEC 2008, a
locking sleeve needs to be used with all
connectors that are exposed.
The locking sleeve (PV-SSH4) is made
turn.
by Multi-Contact and can only be released
tightening
with
a
Multicontact (PV-MS). Locking sleeves are
not supplied with modules and must be
purchased separately.
Conduit
In
applications
conduit
are
refer
to
codes for outdoor installations..
Verify that all fittings are properly installed
to
protect
prevent moisture intrusion.
as
DIODES
place
the
Bypass Diodes
When modules in series strings are partially
shaded,
it
wrench,
across
cells
nut.
current from other cells in the same series
tightening
is forced to flow through the shaded area.
This
may
occur.
The use of a diode to bypass the shaded
area can minimize both heating and array
current reduction.
Modules are equipped with factory installed
refer
to
bypass diodes. The factory-installed diodes
provide
proper
systems within the specified system voltage,
so
that
you
additional bypass diodes.
Contact
Representative for proper diode type, if it is
necessary to add or change diodes due to
a
terminal
system specifications.
MAINTENANCE
Some
maintenance
maintain optimal output performance of the
solar modules.
polarity
is
provided
with
factory
cables
and
a
latching
special
tool
also
made
where
wire
raceways
used,
follow
the
applicable
wires
against
damage
may
cause
reverse
voltage
or
modules,
because
cause
undesirable
heating
circuit
protection
for
do
not
need
any
other
your
Panasonic
Authorized
is
recommended
by
or
and
the
to
the
to
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