nts do PC meter box designs need to meet?

内容：

The design of PC meter boxes must meet a series of strict requirements to ensure their performance, safety, and durability. Here are some key design requirements:

Material selection: The cover of the electric meter box should be made of imported weather resistant transparent polycarbonate (PC) engineering material, and the bottom of the box can be made of flame-retardant ABS or PC/ABS alloy engineering plastic. These materials should have good insulation performance, high transparency, UV resistance, aging resistance, acid rain resistance, high temperature resistance, low temperature resistance, and high impact strength.

Structural requirements: The meter box should be a fully enclosed structure, equipped with sealing rubber strips and waterproof grooves to prevent rainwater, wind, sand, and dust from entering. At the same time, the meter box should be designed as three independent rooms (incoming room, metering room, outgoing room), and there should be necessary interlocking logic relationships between each room to meet the division of responsibilities between different professions.

Safety performance: The insulation resistance of the meter box should not be less than 20M Ω, and the electrical strength should be able to withstand a voltage of 50HZ/1500V for 1 minute without arcing or lightning breakdown. In addition, the meter box should have good flame retardant performance and pass the national mandatory product certification (3C certification).

Convenience: The cover of the electric meter box should be designed to be easy to open and close, and equipped with a dedicated lock and disposable anti-theft lead seal to facilitate metering management and operation. At the same time, cable trays should be installed inside the meter box to make the wiring beautiful, neat, and secure.

Environmental adaptability: The meter box should be able to operate normally within a wide range of environmental temperatures and have good weather resistance to adapt to different climatic conditions in different regions.

In summary, the design of PC meter boxes needs to comprehensively consider multiple aspects such as materials, structure, safety performance, convenience, and environmental adaptability to ensure that they meet various usage requirements.