What is a high-pressure sealed connector? What are the standards for sealing?

High voltage sealed connector is a kind of connector used to connect wires or cables under high pressure environment, with sealing performance under extreme environment such as high pressure, high temperature and high humidity. High-voltage sealed connectors are widely used in electric power, oil, natural gas, chemical industry, aerospace and other fields, and have important application value. The sealing standard of high-voltage sealed connectors mainly includes the following aspects: 1. IP rating: IP rating refers to the sealing level of the connector, where "IP" stands for "Ingress Protection". The IP rating usually consists of two numbers, one number indicates the dust protection level, and the second number indicates the waterproof level. For example, IP67 means that the connector has a class 6 dust protection and class 7 water resistance. High-voltage sealed connectors are generally required to meet IP67 or higher. 2. NEMA rating: NEMA rating is a standard developed by the National Electrical Manufacturers Association (NEMA) to characterize the level of protection of electrical equipment. NEMA ratings are usually made up of a number and a letter, with the number denoting the level of protection, and the letter denoting other characteristics such as corrosion resistance, impact resistance, etc. NEMA rating is usually made up of two numbers, one denoting the level of protection and the second denoting the level of waterproofing. High-voltage sealed connectors generally need to achieve NEMA 4X or higher. 3. MIL-STD standard: MIL-STD is a series of standards developed by the U.S. Department of Defense for military electronic equipment. MIL-STD standards include a number of aspects, such as mechanical properties, electrical properties, environmental adaptability, etc. MIL-STD standards include a number of aspects, such as mechanical properties, electrical properties, environmental adaptability. High voltage sealed connectors need to comply with MIL-STD-810 and other related standards.

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