Salicru EQUINOX2 3001-S, Руководство пользователя, Страница: 54 / 82

54
SALICRU
S/SX Models Isolating
switch
Fuses
Overvoltage
circuit breaker
If no light-
ning rod is
installed
If lightning
rods are
installed
or there
is a high
probability
of lightning
EQX2 2001-S
Integrated
into the
equipment
Fuses
1000Vdc
15A
40kA
600Vdc
type II
5kA 1000Vdc
type I+II
EQX2 3001-S
Fuses
1000Vdc
15A, 1
por string
EQX2 3002-S
EQX2 3002-SX
EQX2 4002-S
EQX2 4002-SX
EQX2 5002-S
EQX2 5002-SX
EQX2 6002-S
EQX2 6002-SX
EQX2 8002-SX
EQX2 10002-SX
Tab. 7. DC circuit breakers.
2. DC connector assembly procedure.
a.
Select the suitable photovoltaic cable:
Type of cable Cross-section area
General
photovoltaic
cable
Range (mm
2
) Recommended value (mm
2
)
2.5 - 4.0 4.0
Tab. 8. Selecting the photovoltaic cable.
b. Strip 7 mm. of the insulation sleeve of the DC cable,
as shown in Fig. 17:
7 mm
Cable cross-section 2.5-4 mm 2
Fig. 17. Wire end stripping.
c. Remove the connector from the accessory bag, as shown
in Fig. 18:
Fig. 18. Disassembling the connector.
d. Insert the DC cable through the DC connector nut on the
metal terminal and press the terminal with professional
crimping pliers (pull the cable to check if the terminal is
well connected to the cable), as shown in Fig. 19:
To ensure an optimal connection,
use an approved tool to crimp
the terminals.
Fig. 19. Crimping the cable.
e. Insert the positive and negative cables into the corre-
sponding positive and negative connectors, pull the DC
cable to make sure that the terminal is well connected
to the connector.
f. Use an open-end wrench to screw the nut all the way in
and make sure that the terminal is sealed well, as shown
in Fig. 20:
Use the special wrenches for
MC4 connectors to ensure
that the correct tightening
torque is applied, without
damaging the connectors.
Fig. 20. Using an open-end wrench.
Warning
Before assembling the DC connector, make sure that the
cable has the correct polarity.
Use a multimeter to measure the DC input string
voltage, check the polarity of the DC input cable, and make sure
that the voltage of each string is under the maximum voltage
specified in the "Tab. 16. Technical features.".
Fig. 21. Checking the polarity and voltage using a DC multimeter.