Usage and properties: 1) The wiring connection device used in connecting optical cables and optical communication installations 2) Suitable for the protective connection between cables and pigtails 3) Used for both single core and ribbon optical fiber cables Environment: 1) Environmental temperature: -25°C ~ +55°C 2) Relative humidity: 3) Atmospheric pressure: 70 - 106KPa Main technical indexes: 1) Insulation resistance: ≥2 x 104mΩ/500V DC 2) Voltage strength: non-puncture, no arc-over under 3kV DC/1min