Grounding; Electrical Wiring - Solar Frontier PowerSet 6.0-170-3p Bedienungsanleitung

Connecting and disconnecting the plug/socket combination
Connect the plug and socket to each other. A click shows that the connection has been successful. A suita-
ble tool is necessary to open and disconnect the plug/socket combination.. This could be the disconnec-
ting tool as delivered or another suitable tool. See Figure 19.
Never disconnect the plug/socket combination when the system is in operation in order to avoid
electric arcs which can lead to serious injury or death.
5.3.3

Grounding

Grounding cautions
•
Be aware of the necessary grounding requirements prior to installation. Your local
authorities can help you further.
•
Install arrestors, surge absorbers or any other appropriate lightning protection tools
as needed.
•
Module frames, mountings, connection boxes and metal conduits should be
connected to an earth ground as lightning protection, in accordance with local,
regional and national standards and regulations.
•
Holes (d 4 mm, 0.16 in) are provided in the aluminium frame of the SF module to
accommodate grounding. The grounding cable must be attached to the module
frame with a screw and washer. There must be an electrical contact. Use a copper
grounding cable with a cross section of at least 2 mm² (AWG14) and a temperature
range of at least -40 to 85 °C.
•
Alternatively, it is possible to use grounding lugs with integrated grounding pin,
lock washers and grounding clips or brackets for PV modules as per NEC Section
250. These components must be used in compliance with the grounding device
manufacturer's guidelines. Consult the grounding device manufacturer to identify
the appropriate grounding and bonding device for your mounting structure or
design.
For alternative grounding methods please consult Solar Frontier.
Connect the grounding cable to the point marked with the electrical earth symbol
Please refer to further instructions provided by the screw or bolt manufacturer.
5.3.4

Electrical wiring

•
The SF modules have a connecting cable with one plug for each pole. Use these to connect the module.
•
Do not open the junction box.
•
Fasten the module cable to the frame or to the mounting system in order to avoid any stress to the connector.
•
Cables drooping from the terminal box are hazardous and must be avoided.
• Cables should be secured so they are not exposed to direct sunlight (such as behind the module).
•
The sum of Voc of modules in series must not exceed the maximum system voltage rating of the module under any condition, even at low temperature.
•
Reverse current applied to the modules should not exceed 7 A under any condition.
•
Minimum cable diameter: 2.5 mm² (0.004 in²) .
Series connection
Carry out installation and wiring work in compliance with all relevant health, safety and environment laws and regulations.
Diagram showing standard module cabling with obstruction
If obstructions make it impossible to connect modules directly side-by-side, the plugs, sockets and DC cable provided can be used to bridge gaps. A simple example is
shown in Figure 23:
:
Figure 20
Grounding (IEC)
.
Junction box
Roof window
Extension Cable
7
Rolling Thread Screw
Lock Washer
Crimping Terminal
PV module frame
Parallel connection
Figure 19
Grounding Cable
Figure 21
Figure 22
Figure 23