First of all, the most insurance plans, in the wind, rain, snow, fog and other extreme weather, should immediately stop the outdoor work. When multiple deadlines, it's sunny, but overtime work. In addition, still need to pay attention to the following four questions: one, the construction site
in the first place, most security plan is in extreme weather such as wind, rain, snow and fog cases, to immediately stop the outdoor work. It's sunny, the people who pressed for time to work overtime. In addition, we should pay attention to the following four main problems: first, every construction site installation should choose qualified construction professionals to install pv projects. 2, before the installation, construction personnel dress code and get an electric shock prevention measures 1. Wear insulated shoes, a low-voltage insulating gloves, use insulated tools. 2. When near the construction site installation of photovoltaic system, use protective box will be installed position empty empty bracket with wire isolation; 3, the heavy rain, snow, windy day stop working. 4, rain and snow day component connection work is strictly prohibited. Note: photovoltaic modules in the light of direct current will increase with the increase of the light, so touch the components of the electronic circuit will have a risk of electric shock or burns, 30 v or higher dc voltage may even be deadly. Third, when installing photovoltaic modules, need to pay attention to the following 6 points 1, cut off the power of the photovoltaic modules, they can be moved to completely flat environment, or cover the surface of the component with opaque material. If you want to operation of these components in the sun, you must use insulated tools, and don't wear metal accessories. 2, in a case with load can't disconnect the electrical connections, in case of electric arc and the risk of electric shock. To ensure correct cables and connection method, because of the wrong connection methods can also lead to arc discharge and electric shock. 3, keep dry and clean plug, make sure they are in good working condition. Please do not insert the plug or other metal objects in any other way for electrical connection. 4. Unless the photovoltaic modules and the electrical connection is broken and wear personal protective equipment, do not touch or operation, frame loss and breaking glass back damaged photovoltaic modules. 5. Do not touch the wet photovoltaic modules. When clean photovoltaic modules ( The pv modules is wet) That need to be done according to the cleanness of photovoltaic modules manual operation. Don't wear personal protective equipment or rubber gloves, do not touch the wet plug. 6. Component framework and other non conductive metal fixture must be connected to the grounding device, in order to prevent electric shock. Best grounding all pv module frame, to ensure that the grounding and voltage between the conductive device under any circumstances to 0 v. Four, photovoltaic project electrical installation need to be aware of 5 to 1. When electrical equipment start and stop, the terminals and cable will produce voltage. Again, therefore, must be installed by a qualified professional and technical personnel. 2. Choose appropriate, accurate and standard cable products. All connections to the inverter, mother box and cable distribution box must be suitable for system voltage, current and environmental conditions ( Temperature, ultraviolet) 。 3. Attention to the line has been installed. All should be paid attention to in the process of connection, cable traction and the connection is correct. 4, must ensure that the good grounding connection, lest produce voltage.