23
4
Electrical connections
Read all of the instructions, cautions, and warnings for the Solectria
PVI inverter and associated PV array documentation.
Installation and commissioning must be performed by a licensed
electrician in accordance with local, state, and National Electrical
Code ANSI/NFPA 70 requirements. Use 90°C (194 °F) copper solid
or stranded wire for all DC and AC wiring to the PVI inverter to opti-
mimize system efficiency. Size conductors per NEC requirements.
PV solar arrays produce hazardous voltages and currents when
exposed to light which can create an electrical shock hazard. Using
dark opaque sheets cover the PV solar array before wiring or con-
necting cable terminations.
Before connecting the Solectria PVI inverter to the AC distribution
grid, approval must be received by appropriate local utility as requi-
red by national and state interconnection regulations, and must be
connected only by qualified personnel.
Do not attempt to open or repair the inverter as the inverter is factory
sealed to maintain its NEMA 4 / IP65 rating and will void the inverter
warranty.
The PV AC output circuits are isolated from the enclosure.
The PV
system Ground Electrode Conductor (GEC) when required by Nati-
onal Electric Code (NEC), ANSI/NFPA 70 Sections 690.41, 690.42,
and 690.43 is the responsibility of the installer.
WARNING!
AVERTISSEMENT!
WARNING!
AVERTISSEMENT!
DANGER!
DANGER!
WARNING!
AVERTISSEMENT!
CAUTION!
PRUDENCE!
CAUTION!
PRUDENCE!
4.1
General safety