Experimental requirements for fiberglass electric meter box
The experimental requirements for fiberglass electric meter boxes are strict, mainly including the following aspects:
Firstly, the flame retardant performance of the fiberglass electric meter box needs to reach V-2 level, and the temperature resistance should not be lower than 130 ℃. This ensures that the meter box can effectively prevent the spread of fire and improve safety when exposed to high temperatures or fire sources.
Secondly, the insulation resistance of the fiberglass electric meter box should not be less than a certain value (such as 20 megaohms or 5 megaohms, the specific value may vary due to different standards). This requirement ensures that there will be no leakage of electricity in the meter box during use, ensuring electrical safety.
In terms of electrical strength, the fiberglass electric meter box should be able to withstand a voltage of 50HZ/1500V or 2000V for 1 minute without any abnormal phenomena such as arcing or breakdown. This verifies the stability and safety of the meter box in high voltage environments.
In addition, the fiberglass electric meter box also needs to have good acid and alkali resistance. Drop a certain concentration of acid-base solution onto the surface of the electric meter box, wipe it off after a certain period of time, and the electric meter box should be free of cracks and delamination. This requirement ensures the service life and stability of the meter box in harsh environments.
The impact resistance and compression resistance are also important experimental requirements for fiberglass electric meter boxes. The meter box should be able to withstand the pressure of heavy objects and the impact of falling from a certain height, and the box should be kept intact without any abnormal phenomena such as cracks or peeling. This ensures that the meter box can withstand certain external forces and impacts during installation and use, maintaining the integrity and stability of the structure.
Finally, the fiberglass electric meter box needs to undergo climate impact testing to verify its stability and durability under different temperature conditions. Under conditions of high temperature, low temperature, and long-term sunlight exposure, the meter box should not deform or crack, and maintain its original performance and service life.
In summary, the experimental requirements for fiberglass electric meter boxes cover multiple aspects such as flame retardancy, insulation resistance, electrical strength, acid and alkali resistance, impact and compression resistance, as well as climate impact, to ensure their safety, stability, and durability during use.