Installation
2–8
975-0253-01-01
DC Grounding
The GT Inverter is designed to work with ungrounded PV systems (neither the
PV+ nor the PV– are connected to earth). The array frames and other PV
equipment must have equipment grounding connections as required by applicable
codes.
Lightning Protection
Reduce the risk of lightning damage by using a single-point grounding system. In
this system, all ground lines terminate at the same point. This point normally is the
main utility ground installed by the utility company to provide a ground for the
house wiring. This ground usually consists of a copper rod driven 1.5 to 2.5
meters into the earth.
Routing the Wires
Typical
configurations
Determine all wire routes to and from the GT Inverter. Typical routing
configurations include:
•
AC wiring from the GT Inverter to the main utility service panel
•
DC input wiring from the PV array to the GT Inverter
Preparing for the Installation
WARNING: Shock hazard
Check for existing electrical or plumbing prior to drilling holes in the walls.
WARNING: Shock hazard
Whenever a PV array is exposed to sunlight, a shock hazard exists at the output wires or
exposed terminals. To reduce the risk of shock during installation, cover the array with an
opaque (dark) material before making any connections and open any and all external dis-
connect switches between the array and the inverter. The PV modules, wiring, and other
equipment must be installed in accordance with the manufacturer's instructions and all
applicable installation codes.
Important:
Ensure your local utility is consulted for any requirements for connecting
to or returning power to the grid. Obtain all permits necessary to complete the installation.
Consult your local and national electrical codes for more information.
Important:
In this manual “wiring” and “wires” are used in reference to both AC and
DC wiring/cabling and wires/cables.
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Содержание GT 2.5-DE, GT 3.8-DE, GT 2.8-S
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