There are mainly stand-alone PV inverters and grid-connected PV inverters, while stand-alone PV inverters are mainly used in remote areas without household electricity and for individual household users, and grid-connected solar power inverters are mainly used for desert power stations and urban rooftop power generation systems.
For the inverter, it is required to pass various tests such as environmental test, safety test, electrical characteristics, mechanical protection, fire hazard protection, noise, electrical characteristics, electromagnetic compatibility, etc. And for the insulation materials applied therein, stringent relevant standards are required.
1. Insulation resistance and insulation strength
2. HWI hot wire combustibility
3. Flame resistance
4. Electromagnetic compatibility
5. Shock, fall
6. Environmental testing (low temperature storage test, high temperature storage test, constant humidity and heat test, vibration test), etc…
EMT’s DFR3716A halogen-free flame retardant polypropylene film material has the following characteristics.
1. Halogen-free green environmental protection, in line with RoHS, REACH environmental regulations.
2. Excellent flame retardancy, 0.25mm thickness to VTM-0 level.
3. Good insulation performance, insulation resistance: > 1GΩ, surface resistivity, volume resistivity
4. Excellent high-voltage characteristics, AC 3000V, 1min conditions, no breakdown of the insulation film breakage, leakage current <1mA.
5. Excellent temperature resistance, RTI temperature resistance index reaches 120℃ (electrical characteristics).
6. Excellent bending resistance and processing characteristics, suitable for processing applications with requirements such as punching and folding.
7. Excellent chemical resistance.
In addition, the polypropylene film material performs well in electrical performance and insulation under test conditions such as damp heat treatment, high and low temperature cycles, and salt spray environment.
The material can be used in inverters and has already replaced the Y series products of American company X. It is used in the products of several world-renowned inverter manufacturers.
For more product information please refer to the official website : https://www.dongfang-insulation.com/ or mail us: sales@dongfang-insulation.com
Post time: Feb-12-2023
