The solar 120% rule is a key safety standard when it comes to solar PV systems. In short, the NEC 120% standard allows for solar PV systems to be installed in electrical boxes that are up to 120percent of the safety label of the installed electrical equipment. This is meant to ensure that the system is installed safely and that it does not overload any of the electrical components in the system. Here are a few key points to keep in mind when it comes to the solar 120% rule:
The NEC 120% standard is a safety standard specifically for solar PV systems.
The rule permits solar PV systems to be placed in electrical boxes that are up to 120% of the installed safety label for electrical equipment.
The standard is designed to ensure that solar PV systems are installed safely and that they do not overload any of the electrical components in the system.
Proper installation is key to ensuring that your solar PV system is safe and efficient.
Be sure to work with a qualified and licensed professional to help you plan and install your solar PV system.
Remember, installing a solar PV system is a major investment in your home. By following the solar 120% rule and working with a professional, you can ensure that your system is installed safely and that it will be a reliable source of clean, renewable energy for years to come.