SCHOTT Solar Photovoltaic Modules Installation And User Manual page 10

3) Grounding Lug with Machine Screw at Mounting Hole
~20
in-lbs
copper wire
#4-6 at 35 in-lbs
#8 at 25 in-lbs
#10-14 at 20 in-lbs
4) Grounding Clip at Grounding Hole
~20
in-lbs
8-32 screw
and hex nut
10
SS 8-32 Nut
(e.g. Fastenal 70706)
SS #8 Flat Washer
(e.g. Fastenal 71008)
module frame
Lug
SS #8 Flat Washer
(e.g. Fastenal 71008)
SS 8-32 x 1 Machine Screw
(e.g. Fastenal 0170682)
~20
in-lbs
10-32 thread
cutting screw
Select a grounding lug listed for direct
burial and outdoor use (tin-plated, solid
copper lay-in lug with a stainless-steel
set screw) capable of accepting a
4-14 AWG copper conductor, e.g.
ILSCO GBL4-DBT, Burndy CL50-1TN.
Use an emery cloth, sandpaper, or a
steel brush to remove the anodizing
coating on the frame. The area
removed should be the same size as the
lug mating face. Apply an anti-oxidation
coating, e.g. Burndy Penetrox, Ideal
Noalox.
To the mounting hole, secure the lug
with stainless steel hardware consisting
of a machine screw (min#8), two flat
washers, and a nut, as shown in the
figure. Tighten the nut to approximately
20 in-lbs.
Tighten the lug set screw to the copper
wire at the torque specified by lug
manufacturer.
Select a grounding clip listed and
designed to ground photovoltaic
modules, e.g. TYCO SolKlip.
To the grounding hole, secure the clip
per manufacturer's instructions and
tighten the screw to 20 in-lbs.
Insert copper wire into the wire slot per
manufacturer's instructions.