Top Clamping Modules TPM Rack Installation Supplement

Installing Mid and End Clamps
Clamps are attached to the Rails using 5/16" RAD Bolts
Nuts.
Mid Clamps
Mid Clamp tabs must rest
between the Modules.
Parts:
5/16" Flange Nut
Mid Clamp
5/16" RAD Bolt
(length depends on
module thickness)
Torque: 14-16 ft.-lbs.
End Clamps
Make certain that End
Clamps are installed as
shown and not upside
down.
Parts:
5/16" Flange Nut
End Clamp
5/16" x RAD Bolt
(length depends on
module thickness)
Torque: 14-16 ft.-lbs.
and Flange
This supplement shows how to attach PV Modules on a
Mount (TPM) rack using the top clamp method. It demonstrates the
proper use of Mid Clamps and End Clamps along with the associated
hardware.
Correctly Installing Mid and End Clamps
Mid and End clamps must be installed as shown. Failure to do so could
lead to personal injury, structural failure and/or damaged components.
Top-of-Pole-
Top Clamping Modules on TPM Rack
Installation Supplement
1
2
3
© 2017 Preformed Line Products Version 1, Rev B, PCN 010617-1, SP3304-3 Top Clamping Modules on a TPM Rack - Installation 1 of 1
End
Clamp
Installed
upside down
WRONGCORRECT
End
Clamp
Correctly
Installed
WRONG
Installed with
Modules butted
against Mid
Clamp Tabs
Module Frames
Tabs
Mid Clamp
is not
square to
Modules
Visible gaps
between Mid
Clamp Tabs and
Modules
CORRECT
1
2
3
Rail
2
1
3
Rail
1
4
2
3
Factory
Installed
PEM Nut
Rail
Push Modules
against Tabs
of Mid Clamp
2
1
3
Tabs
Rail
Push Modules
against Tabs
of Mid Clamp
1
4
2
3
Tabs