Legrand DSBEA - Manual (Page 5)

Legrand Delta Strut Solar Systems
have passed electrical/bonding
testing per UL 2703. The following
paragraph states the scope of the
UL standards:
These requirements cover rack
mounting systems and clamping devices
for flat-plate photovoltaic modules and
panels that comply with the standard
for Flat-Plate Photovoltaic Modules
and Panels, UL 1703, intended for
installation on or integral with buildings,
or to be freestanding (i.e., not attached
to buildings), in accordance with the
National Electrical Code, ANSI/NFPA 70
and Model Building Codes.
Solar panels mounted Delta Strut
on Gravel Roof with Concrete Pier Ballast
Concrete pier ballasts are
weather resistant and keep
array in place during high
wind events.
DSMHDC is spring-loaded and
stays in position while panels
are positioned.
DSMHDC
Use two DSSA to splice any two
sections of Delta Strut tray.
DSSA
Use GNDSB split-bolt lug
grounding connector to
properly ground each solar
support row.
GNDSB
Installation Instructions:
1. Snap chalk lines for each DS
support row. Rows should be
located at even intervals with
a maximum distance of 60”.
Actual spans should be based
upon roof loading requirements.
2. Snap a second set of chalk
lines at a right angle to position
DSCBP10-160 (concrete pier
ballast). Actual spacing should
be in accordance with the
drawings provided with each DS
shipment.
3. Place DSCBP10-160 (concrete
pier ballast) using a dolly (or
transfer bar).
4. Install DS stringers to
DSCBP10-160 concrete pier
ballast. Position DS stringer
over poured-in metal mounting
bracket and secure with a
DSPCC (Connection Clamp) and
self-threading screw. [Figure A]
5. Splice sections of DS together
using a DSSA splice (install
splices on both inside corners
of DS for a single splice). Torque
nuts to 6-8 ft/lbs. [Figure B]
6. Position first PV panel at the
beginning of first run, check for
position and square, then attach
to DS using DSEHDC (End Bolt/
Clamp). Torque nuts to 6-8 ft/lbs.
7. Add next PV panel in run. Use
DSMHDC (Middle Bolt/Clamp -
Patent Pending) in areas where
two panels adjoin. Torque nuts
to 6-8 ft/lbs. [Figure C]
8. Pull feeder cabling into DS
stringer row. Connect PV cables
to feeder cables and secure
cabling to DS. Be aware that
cabling is live at this point.
9. Each solar row to be connected
to Earth as specified in NEC
using proper sized ground
conductor and UL Listed Split-
bolt lug connected to Delta
Strut. [Figure D]
FIGURE A
FIGURE B
FIGURE C
FIGURE D
A
C