Electrical Connections; General Safety - Delta AU Series Operation And Installation Manual

4

Electrical connections

4.1

General safety

WARNING!
AVERTISSEMENT!
WARNING!
AVERTISSEMENT!
DANGER!
DANGER!
WARNING!
AVERTISSEMENT!
CAUTION!
PRUDENCE!
22
Read all of these instructions, cautions, and warnings for the Delta
M series inverter and associated PV array documentation.
Installation and commissioning must be performed by a licensed
electrician in accordance with local, state, and AS/NZS 5033
requirements. Use AWG14 for PV wiring and AWG10 for AC
wiring or greater 90°C (194 °F), copper solid or stranded wire for
all DC and AC wiring to the M series inverter to optimize system
efficiency.
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 Delta M series inverter to the AC distribu-
tion grid, approval must be received by appropriate local utility as
required 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 IP65 rating and will void the inverter warranty.
The PV AC output circuits are isolated from the enclosure.
system PE Conductor when required by AS/NZS 3000.
The PV