High-end Process Requirements For Pre-insulated Sleeves

All pre insulated sleeve products must undergo 15 extreme tests before leaving the factory, including high temperature and humidity (85°C x 85% RH x 1000h), thermal shock (-40°C → 125°C cycle 500 times), and alcohol wiping (500 times without swelling). The defective rate of pre insulated junction sleeve products must be controlled within 0.02%. These testing standards fully verify the long-term stability and safety reliability of insulated joint sleeve products in high temperature, humidity, and high mechanical stress environments.