Solar cables are essential for connecting solar panels to the various components of a photovoltaic installation (micro-inverter, protection box, inverter, converter or regulator). They ensure the transmission of the electrical energy generated by the solar panels to the rest of the system. The quality of solar cables is crucial to guarantee the performance and durability of your solar installation.
Specificity of solar cables
Drivers
Solar cables have copper or aluminum conductors, tinned to resist corrosion. These conductors ensure optimum electrical conductivity, essential for high energy efficiency and optimum safety.
Sheath
The sheath of solar cables is designed to withstand bad weather. Made of materials such as cross-linked polyethylene (XLPE) or thermoplastic polyurethane (TPU), it protects against UV rays, humidity and temperature variations. The sheath provides double insulation of the conductor (there are two sheaths, one on top of the other). The sheath can be black or red. Choosing the color of your cable (black or red) makes it easier to identify the cables when installing your photovoltaic panels.
Cable section
The cross-section of solar cables varies depending on the power of the installation and the distance between the panels and other components. An adequate cable cross-section minimizes energy losses and guarantees optimal electrical safety. For residential use, most of the time, a cross-section of 4 mm² is perfectly suitable.
Use of solar cables
Connecting solar panels
Solar cables connect solar panels together, forming chains optimized for energy production. Good cable management is essential to maximize the efficiency of photovoltaic panels. Solar panels are equipped with connectors mainly of the Staübli brand and of the MC4 or MC4 Evo model, it is crucial to use a compatible electrical connector of the same brand in order to guarantee the safety of your photovoltaic installation. The connection between the panels is crucial for the proper functioning of your photovoltaic plant and its safety.
Connecting to the microinverter
Microinverters, placed near each solar panel, convert direct current (DC) to alternating current (AC). Solar cables provide a reliable connection between the panels and the microinverters, ensuring efficient energy conversion.
Connection to the protection box
The protection box groups together safety devices such as circuit breakers and surge protectors. The solar cables transport the converted energy to this box, thus ensuring the protection and secure distribution of the electricity produced.
Solar connectivity
Specificities
Solar connectivity
Solar connectors, such as connectorsMC4, MC4 evo from Staübli orRST20from Wieland, are essential to ensure stable and secure connections. They are designed to withstand outdoor conditions and ensure perfect sealing. In addition, it is essential to use connectors that are compatible with each other.
Network connectivity
For large-scale installations, network connectivity facilitates communication between the different components of the solar system, ensuring optimal management of the energy produced.
Choosing the right solar cable
Selection criteria
The choice of solar cable is based on several criteria, including weather resistance, flexibility, durability and compatibility with connectors. It is crucial to select a high-quality cable to ensure the performance and safety of the installation.
Cable length and section
The length and cross-section of the cable must be adapted to the specific needs of the installation to minimize power losses and maximize system efficiency. Cables of adequate cross-section are essential for optimal energy transmission.
Compatible connectors
Connectors that are compatible with the chosen cables ensure easy and secure installation. It is crucial to check the compatibility of the connectors with the various components of the system to ensure a reliable connection.
Installation and maintenance of solar cables
Connecting solar cables
The connection of solar cables must be carried out in accordance with the current standards (C15-712) to ensure the safety and efficiency of the installation. Correct installation minimizes the risks of short circuits and fire.
Using the connector tools
The use of specific tools, such as crimping pliers and connector testers, facilitates installation and guarantees reliable and durable connections. These tools are essential for a professional installation of solar cables. This is why Oscaro-Power offers youextensionswith connectors factory-crimped by these industrial partners.
Tips for connecting cables
Connecting cables in an orderly and secure manner is essential to avoid excessive stress and mechanical damage. Using cable trays, cable channels and cable management accessories helps maintain a clean, organized and secure installation.
The earth
It is essential to connect the panel frames and the rails of the fixing system to the ground via a 6mm² green-(yellow) conductor. There is a wide variety of accessories for this. Oscaro-Power has selected the best for a unique experience.
Cable maintenance and life span
Check the wiring regularly
Regular wiring checks help detect and correct potential problems before they affect the efficiency of the installation. Preventive maintenance extends the life of solar cables. Particular attention should be paid to the contact areas between solar cables and other objects (tiles, rails, etc.)
Weather protection
Both black and red solar cables are weather and sun resistant, installing them as far as possible under the panels improves their lifespan. Proper cable management will ensure better weather tolerance. By following these tips and choosing quality cables and connectors, you can ensure an efficient and sustainable solar installation, maximizing your renewable energy production. Discover our solar panel kits, equipped with robust solar cables and reliable connectors, to guarantee an optimal installation and clean energy for your home or business. Take advantage of our products at competitive prices and benefit from fast delivery to start your solar project today.
