Standard About One-piece Insulating Joint/One-piece Insulation Joint

An insulated joint is a device used for electrical connections, whose main function is to connect wires, cables, or conductors and provide electrical insulation at the connection point to prevent short circuits or leakage of current. These joints are usually made of insulating materials to ensure the safety and reliability of the electrical system.

Characteristics and functions:

1.Insulation material: Insulation joints are usually made of insulation materials, such as plastic, rubber, or other materials with good insulation properties. This helps to prevent short circuits or leakage of current at the joint.
2.Electrical isolation: The main function is to provide electrical isolation, which can prevent current from conducting at the joint even under high voltage conditions. This is crucial for ensuring the stability and safety of the electrical system.
3.Waterproof and dustproof: Insulated joints typically have waterproof and dustproof designs to protect electrical connections from external environmental influences. This is particularly important for electrical equipment in outdoor or humid environments.
4.Corrosion resistance: Some insulation joints also have corrosion resistance, which can resist the erosion of chemicals and other environmental factors on the joints, thereby extending their service life.
5.Easy to install: Most insulation joints are designed to be easy to install and disassemble for maintenance and replacement. This makes it more convenient to adjust or repair the electrical system when needed.
6.Multiple types: According to the purpose and electrical system requirements, there are various types of insulation joints, including plug-in, threaded, crimped, etc., to meet the requirements of different scenarios and electrical connections.

Testing

•  Strength test

1. Insulated joints and flanges that have been assembled and passed non-destructive testing should undergo strength tests one by one at an ambient temperature of not less than 5 ℃. The test requirements should comply with the provisions of GB 150.4.
2. The strength test pressure should be 1.5 times the design pressure and at least 0.1MPa greater than the design pressure. The test medium is clean water, and the duration of the water pressure test (after stabilization) should not be less than 30 minutes. In the water pressure test, if there is no leakage at the flange connection, no damage to the insulation components, and no visible residual deformation of the flange and insulation components of each fastener, it is considered qualified.

Overall, insulated joints play a crucial role in electrical engineering, not only ensuring the normal operation of electrical systems, but also improving the safety and reliability of electrical equipment. When selecting and using insulated joints, wise choices should be made based on specific electrical requirements and environmental conditions.