Table of Contents
Advertisement
INFORMATION!
INFORMATIONS!
CAUTION!
PRUDENCE!
4.8
Inverter connections
4.8.1
General information
WARNING!
AVERTISSEMENT!
WARNING!
AVERTISSEMENT!
WARNING!
AVERTISSEMENT!
DANGER!
DANGER!
CAUTION!
PRUDENCE!
INFORMATION!
INFORMATIONS!
WARNING!
AVERTISSEMENT!
Follow the temperature multiplication factors given in NEC 690.7
table and the PV module manufacturer specified V/Temp coeffici-
ent to ensure PV string voltage is less than < 600 Vdc. Maximum
inverter PV input voltage for all possible weather conditions in the
location of installation.
System wiring voltage losses should be no greater than 1 to 2
percent for optimal system efficiency and performance.
Installation and commissioning must be performed by a licensed
electrician in accordance with local, state, and National Electrical
Code ANSI/NFPA 70 requirements.
Inputs and output circuits of this unit are isolated from the enclo-
sure. System grounding must be done in accordance with the
National Electrical Code (NEC), ANSI/NFPA 70 and Compliance is
the responsibility of the installer.
Ensure no live voltages are present on PV input and AC output
circuits, and verify that the DC disconnect, AC disconnect, and de-
dicated AC branch circuit breaker are in the "OFF" position, before
inverter installation.
PV solar arrays produce hazardous voltages and currents when
exposed to light which can create an electrical shock hazard. Use
dark opaque sheets cover the PV solar array before wiring or con-
necting cable terminations
Before any electrical wiring can be connected to the inverter, the
inverter must be permanently mounted.
Use solid or stranded copper conductors only.
2
6 AWG (16 mm
) is maximum allowed wire size.
Inverter warranty is VOID if the DC input voltage exceeds the inver-
ter 600 Vdc maximum.
27
Hide quick links:
Advertisement
Table of Contents
