Photovoltaic mounting manufacturers say that the electrical installation of photovoltaic modules should be in accordance with the corresponding legal regulations, which include electrical-related legal regulations and the requirements of the power connection.
Please contact your local power department for specific contract terms. Please do not install PV modules on the roof of a building without reliable protective measures, including fall protection, ladders and stairs and personal protective equipment. Do not install or use distributed photovoltaic systems under very unfavorable conditions, such as strong winds and wind gusts, wet and frosty roof surfaces, etc.
In the case of irradiation of photovoltaic power generation system will generate direct current, the current along with the strengthening of light and strengthen, photovoltaic mounting manufacturers stressed that if touching the electronic circuit of the module will also have the risk of electric shock or burns, 30 volts or higher DC voltage may even be fatal.
Therefore, during the whole process of installation and repair, the power supply of the PV power system should be cut off, and they can also be moved to completely light-free conditions, or the surface of the modules should be blocked with opaque materials. If the system is operated under the sun, please use insulated tools and do not wear metal ornaments again.
In order to avoid the danger of electric arc and electric shock, please do not interrupt the electrical connection to ground when there is a load working. Must always keep the connection socket dry and clean, effectively ensure that these are always in good working efficiency. Do not put other metal objects into the socket or ground the electrical connection in any other way. Do not touch or use PV modules with broken glass, peeling bezels, or broken back panels unless the module is disconnected from the electrical ground and you are wearing personal protective equipment. Do not touch wet modules.
