FEATURES
Leakproofness: inflate the box to 100kPa after the box is closed, and then observe it for 15 minutes while the box is immersed in the normal temperature water container. There’sshould be no bubble escaping
Insulation resistance: the insulation resistance between the hardware and the ground is equal to or larger than 2×10 4MΩ.
Resistance to pressure: it should not be broken down and there’s should not be flashover in 15kV( DC)/1 minute between the hardware and the ground.
Radius of coiling curvature of the fiber optic: ≥30mm(less than 40mm) and there’s no additional attenuation in the fiber optic fusion splice protector.
Strench:endure the axial tensile stress of equal to or larger than 1000N.
Life span: 25 years.