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SF6-12/437 Gas Insulated Bushing 12kV – High Performance Fuse Insulating Cylinder Switchgear RMU 75kV Lightning Protection

Description:

SF6-12/437 Gas Insulated Bushing: High-performance 12kV fuse insulating cylinder for switchgear and RMU, 75kV lightning protection, 42kV withstand, 1.0×10⁻⁹ Pa·m³/s ultra-low leakage.

Applications:

High Performance SF6-12/437 Gas Insulated Bushing: Premium SF6-12/437 model gas insulated bushing featuring high-performance design specifically engineered for 12kV dry sulfur hexafluoride inflatable switchgear and ring main units in critical power distribution systems, delivering exceptional electrical insulation with 42kV power frequency withstand and 75kV lightning impulse protection, ensuring ultra-low leakage rate of 1.0×10⁻⁹ Pa·m³/s for sealed SF6 gas compartments in demanding industrial, utility, and infrastructure applications requiring maximum reliability.

Superior Fuse Insulating Cylinder Engineering: SF6-12/437 incorporates advanced epoxy resin casting with precision surface-treated center conductor ensuring superior mechanical strength, enhanced gas-tight sealing performance, and extended service life, engineered for reliable operation in harsh environments and critical 12kV inflatable switchgear systems, fully compatible with busbar assemblies, plug connectors, and sealing rings to provide robust integration solution for heavy-duty SF6 gas insulated equipment and mission-critical ring main unit installations.

Mission-Critical Switchgear Integration: SF6-12/437 model supports high-reliability ring main units and SF6 switchgear installations with UL94 V1 flame retardant rating, 105±5°C glass transition temperature, and superior dielectric properties including ≤0.2% hydroscopicity, 1.0×10¹⁴Ω insulation resistance, and ≥18kV/mm disruptive strength for reliable operation in demanding industrial power distribution, utility substations, critical infrastructure, and heavy-duty electrical equipment applications requiring maximum uptime and performance.

Specifications

SF6-12-437 Gas Insulated Bushing 12kV - High Performance Fuse Insulating Cylinder Switchgear RMU 75kV Lightning Protection

Selection Drawing No.
SF6-12/437 5RA12.013.042

Features

Category Parameter Value Unit
Technical Parameter PF 42 kV/1min
Technical Parameter PD 1.1Ur≤3 pC
Technical Parameter Flame Retardant Rating V1 (Special Requirements) UL94
Technical Parameter Tg 105±5
Technical Parameter Lightning Impulse 75 kV
Technical Parameter Leakage Rate 1.0×10⁻⁹ Pa·m³/s
Technical Parameter Color Red
Raw Material Parameter Hydroscopicity ≤0.2 %
Raw Material Parameter Dielectric Loss 0.01
Raw Material Parameter Insulation Resistance 1.0×10¹⁴ Ω
Raw Material Parameter Disruptive Strength ≥18 kV/mm
Raw Material Parameter Arc Resistance 182 s
Raw Material Parameter Impact Strength ≥7 kJ/m²
Raw Material Parameter Bending Strength ≥110 N/mm²

Manual

SF6-12-394-437-Miniature-Gas-Insulated-Bushing-12kV-Compact-Fuse-Insulating-Cylinder-Ring-Main-Unit-Switchgear-75kV-Impulse.pdf
PDF File 3.16 MB

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Bepto is a leading Chinese company in electrical insulation, focused on developing advanced solutions for future power systems. We support transmission and distribution safety and growth, with long-term partners including State Grid, ABB, Schneider, Siemens, and GE. Our services reach clients in over 22 countries.

Application

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