| Brand | Switchgear parts |
| Model NO. | 10-20 kV tunnel type quick connector (fiberglass waterproof shell) |
| Rated voltage | 12/20kV |
| Series | JTD |
1.Structural composition and material properties
Fiberglass shell: Made of glass fiber reinforced unsaturated polyester resin molded, it has lightweight and high strength (density only 1/3 of steel), corrosion resistance (service life of 20-30 years), and insulation performance (fire rating B1)
Waterproof sealing system: Equipped with dual protection of Hafu type sealing gasket and heat shrink tubing, the port is wrapped with waterproof sealing tape and can withstand a water pressure test of 0.6MPa
2. Typical application scenarios
Tunnel engineering: suitable for humid environments such as subways and highway tunnels, and can achieve standardized laying when used in conjunction with cable trench supports
Outdoor power distribution: As a protective shell for European plug-in heads, compatible with 200A elbow cable connectors (such as JB-10/630A models)
3. Technical parameters
Protection level: IP67 (completely dust-proof and short-term immersion protection)
Mechanical strength: capable of withstanding crushing loads of over 40 tons, with anti slip surface design
Environmental adaptability: working temperature -40 ℃~80 ℃, seismic intensity 8 degreesOperational requirements:
Operational requirements:
The rated voltage of the system is 8.7kV/15kV; 12kV/20kV
The long-term maximum operating voltage of the system Um: 17.5kV/24kV
Rated current: 250A-630A Applicable cross-section: 50-400mm ²
Impact withstand voltage level (BIL): 95kV/125kV
System frequency: 50Hz
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35kV composite/ceramic sleeve outdoor terminal
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10-20kV 2 # internal cone plug-in terminal
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10-20 kV tunnel plug-in quick connector (aluminum alloy waterproof shell)
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66-138 kV intermediate insulation joint (ordinary type)
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