Abstract
The electric protection cover for the energy meter in the charging pile is an important part to protect the power line terminal and signal line terminal from being damaged by pollution. However, due to the complex and diverse environment in which the charging pile is located, it is easy to cause damage such as damage to electrical protection cover in high temperatures, high humidity, and other harsh environments, resulting in pollution and corrosion of electrical terminals, affecting normal electricity metering. To solve this problem, this paper studies the important factors that affect the life distribution of the electric protective cover used for energy meters in charging piles in the process of use. The accelerated stress model and method are constructed by the comprehensive application of the accelerated test theory, and the accelerated life test is completed. Through experiments, the failure time distribution of typical electrical protection covers for energy meters in a natural service environment is found, the model is hypothesized, tested, and estimated, and the key parameters of life distribution are determined. This paper also provides a good technical idea for the research of aging failure data analysis of electric plastic materials.
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