7
、
Wiring
●
The modules use the PV-JX1203 type junction box. This box, on the back side of the module, is
weatherproof and is designed to be used with standard wiring or conduit connections. Wiring methods
should be in accordance with the NEC (National Electrical Code). Bypass diodes and cable clamps are
included with each module when shipped from the factory.
●
Correct wiring scheme
When designing the system, avoid forming loops to minimize risk in the event of an indirect lighting
strike. Check that wiring is correct before starting the generator. If the measured open circuit voltage
( Voc) and short-circuit current (Isc) differ from the specifications, then there is a wiring fault.
●
Correct connection of contact plug connectors
The plug connector has its own polarity. Make sure that the connection is safe and tight. The plug
connector should not receive outer stress. Otherwise, it is only used to connect the circuit!
●
Use of suitable material
Use cable extensions and plugs that are designed for outdoor application. Ensure that they are in perfect
electrical and mechanical condition. Use only cables having one conductor. Select the appropriate cable
diameter to minimize voltage drop (to calculate the minimum cable diameter and the fuse, and to
calculate controls, multiply the Isc and Voc by a factor of 1.56).
If the module is connected to the control box, you must choose the control box with LJQ-1
、
LJQ-3 type
Connectors.
8
、
Maintenance and cleaning
●
Do not change the PV components optionally (diode, junction box, plug connectors )
●
Given a sufficient tilt (at least 15°), it is not generally necessary to clean the modules (rainfall will have a
self-cleaning effect). In case of heavy soiling (which will result in output reductions), we recommend cleaning the
modules using plenty of water (from a hose) without cleaning agents and using a gentle cleaning implement (a
sponge). Dirt must never be scraped or rubbed away when dry, as this will cause micro-scratch. We recommend
that the system be inspected at regular intervals.
9
、
Checklists:
●
All fastenings are tight and secure and free of corrosion.
●
All cable connections are secure, tight, clean and free of corrosion.
●
Cables are not damaged in any way.
●
Check the earthing resistive of metals.
