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Planning
Overview of GT100 Installation
Planning
Definition
Components
Location
Clearance
Conduits and
Conductors
2–2
WARNING: Shock Hazard
Installations of this equipment should only be performed by qualified technicians.
Installers must meet all local and state code requirements for licensing and
training for the installation of Electrical Power Systems with AC and DC voltage
to 600 volts.
Planning for a system requires complete understanding of all the components that
are involved to successfully install the GT100 to meet the required national, state,
and local codes.
A power system (such as the GT100) is a collection of devices designed to supply
AC power to the utility grid from a DC solar energy (PV) source.
All types of grid-tied inverter installations, residential or industrial, share common
components. This chapter describes each component and suggests the minimum
requirements for a safe installation.
The GT100 Grid-Tied Photovoltaic Inverter meets certification for both indoor
and outdoor installation. Anchor the GT100 to a level, concrete floor or pad.
Adequate ventilation and service access must be taken into consideration when
installing the GT100. See "Environmental Requirements" for specific clearance
requirements and ambient temperature requirements.
All external conduits and conductors are to be supplied by the installer. See Figure
2-3, "Conduit Entries Above Ground, Multiple Views" on page 2–7 for
recommendations on enclosure penetration locations and cable routing.
All interconnect wiring and power conductors interfacing to the GT100 must be in
accordance with the National Electric Code ANSI/NFPA 70, and any applicable
local codes.
Large gauge wire must conform to the minimum bend radius specified in the
NEC, Article 373-6B, Ninth Edition.
Take care to keep the wire bundles away from any sharp edges which may
damage wire insulation over time.
Use copper conductors only with an insulation rating of 90 °C. The optional Fused
Combiner (GTFC), if installed, requires the use of copper conductors only with a
maximum insulation rating of 75 °C.
If the installation of the GT100 is to be outdoors, all interconnect conduit and
fittings must be NEMA 3R rated as required by the NEC.
This manual for use by qualified installers only
153379
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