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Standard of Cable Gland
At present, the main evaluation standards for water proof cable gland from HONT, the cable gland manufacturer, is based on IP waterproof grade standards. The standard is evaluate waterproof joint performance. So the good cable gland manufacturer in China will use high standard for production.
Water proof cable gland is divided into seven levels in the protection of solid. And it is divided into nine levels in the protection of water resisting.
Basically, the digits of the standard is IPXX. The first one X is from 0 to 6. And the highest level is 6. The second digit is from 0 to 8. The highest level is eight. Therefore, the highest level of waterproof joint is IP68.
The standard of solid protection is from 0 to 6 level.
Level 0 means there is not any protection for the solid.
Level 1 means it can prevent the solid. But the size of the solid should be bigger than 50 mm into the inner side of the cable gland.
Level 2 is to prevent 12.5 mm and above solid into the cable gland.
Level 3 is to prevent 2.5 mm and above solid into the cable gland.
Level 4 means it can stop 1.0 mm and above solid into the inside of the cable gland.
Level 5 means it could stop dust size solid into the cable gland.
Level 6 is reaching to sealing state. Namely it is the full dimensional protection.Read More