INSTALLATION
6
Copyright © 2011 Mastervolt / January 2011 / DC Connection kit for solar electric applications / EN
4 INSTALLATION
4.1 GENERAL
During installation and commissioning of the DC
Connection kit, the Safety Guidelines & Measures are
applicable at all times (see chapter 2 of this manual), as
well as:
•
DIN VDE 0100 (Low-voltage electrical installations);
•
IEC60364-7-712 (Electrical installations of buildings –
Requirements for special installations or locations -
Solar Photovoltaic power supply Systems);
•
VDI 6012 (Local energy systems in buildings –
Photovoltaics);
•
BGV A1 (General regulations);
•
BGV A2 (Electrical installations and equipment).
4.2 UNPACKING
In addition to the DC Connection kit the delivery includes:
•
this installation manual.
After unpacking, check the contents for possible damage.
Do not use the product if is damaged. If in doubt, contact
your supplier.
4.3 INSTALLATION
ENVIRONMENT
The DC Connection kit must be installed in the vicinity of
the solar inverter, in a closed cabinet, protected against
rain, moist, dust and condensation.
4.4
PV MODULES AND STRINGS
The solar or DC side of the system consists of several
photovoltaic (solar) modules, further mentioned as “PV
modules”. The PV-modules are connected in series to
form a so called “string”. These strings consist of a positive
(+) and a negatiev (–) connection which can be connected
directly to the DC Connection kit.
The string voltage should be equal to the open circuit
voltage (Voc) per PV module (refer to the specifications of
the PV-module), multiplied by the number of PV-modules
in each string. Depending on the solar irradiation, this
value should be equal to 70-95% of the calculated string
voltage.
4.5
USE OF THE SPRING-CAGE TERMINALS
The DC Connection kit is equipped with spring-cage
terminal to connect the DC-wiring. Use a maximum wire
diameter of 10mm² to fix to the DC spring-cage
connections. Strip the cable insulation 10mm.
Use an insulated 4mm flat blade screwdriver to open the
spring-cage clamp. See figure 2.
Figure 2: Use of the spring-cage terminals
3
Pull back screwdriver
2
Place cable into opening
1
Push screwdriver firmly into the
indicated slot
