INSTALLATION
6
4 INSTALLATION
WARNING
Be sure that all AC power sources are
switched off or disconnected during
installation.
WARNING
External fuses and earth leakage switches
must be integrated in the wiring of all inputs
and outputs of the
Masterswitch 0
.
4.1 GENERAL
During installation and commissioning of the
Masterswitch
0
the Safety Guidelines and Measurements are applicable
at all times. See chapter 2 of this manual.
After unpacking, check the
Masterswitch 0
for possible
damage. Do not use the
Masterswitch 0
if the cabinet is
damaged.
Check from the type number plate whether the AC voltage
of the power sources is equal to the input voltage of the
Masterswitch 0
.
Use the provide cable-glands to pass the cables through
the cabinet.
4.2
CABLE DIAMETER
For a safe installation the correct wire cross section must
be applied. Don’t use a cross section that is smaller than
indicated. See table below to select the appropriate cross
section for the AC wiring:
AC-Current
Minimum cross section:
in mm²
AWG
0-16 Amp
2.5 mm²
AWG 13
16-32 Amp
4 mm²
AWG 11
32-48 Amp
6 mm²
AWG 9
48-80 Amp
10 mm²
AWG 7
WARNING
Use cable with the right cable diameter!
Under-sized cables and/or loose connections can cause
dangerous overheating of the cables and/or terminals.
Therefore use the proper size and tighten all connections
well, in order to limit transition resistance as far as
possible. See chapter 5 for recommended torques.
4.3 GROUND
CONNECTIONS
For safety reasons it is very important that all ground
connections of the power sources and power consumers
are connected to the central ground connection of the
ship. Improper ground connections might lead to life
treating situations. A reliable ground connection is made
by connecting the sources and the consumers to the
ground terminal
of the
Masterswitch 0
. This ground
terminal must be connected to the central ground
connection of the ship, which is connected to the hull of
the ship.
When the ship lies in sea water (salt) while using shore
power, corrosion can occur. This corrosion is caused by
potential differences between shore ground and ships
ground. Using an isolation transformer will solve this
problem. Mastervolt can provide a suitable transformer
