To protect your panels, consider surge protection like Citel DS72-RS-120 or Delta LA-302, and proper grounding. Following guidelines and using quality equipment can bolster safety.
[pdf] Mutual influence may be driven by different models and operating mechanisms of grounding systems in multi-in- one substations. Even equipment damage and personal injury will occur in the event of a short-circuit.
[pdf] Lightning protection function: In the combiner box, lightning protection devices such as lightning arresters or surge protectors are usually installed.
[pdf] For the solar panel grounding, general use 40 * 4mm flat steel or φ10 or φ12 round steel, and finally buried depth of 1.5m underground, the grounding resistance of the PV module is not less than 4Ω.
[pdf] En este artículo te explicaremos qué necesitas para hacer una placa solar casera, cómo se fabrica una celda solar y cómo funcionan los paneles solares.
[pdf] What Does a 9kw Solar System Cost? For a fully installed 9kw solar system, the cost can fall between £10,400 and £13,000..
What Does a 9kw Solar System Cost? For a fully installed 9kw solar system, the cost can fall between £10,400 and £13,000..
With a properly sized 9 kW solar system, you can expect to save around £1276 per year by using your own solar energy. An 9 kW solar system (without a battery) typically costs around £11000 in the UK.
[pdf] 
