35kV Flexible Busbar Specifications

35kV flexible busbars are fully insulated, high-voltage conductors designed for GIS systems, transformers, and switchgear, with current ratings from 1250A to 2500A and conductor cross-sections from 50mm² to 630mm².

Key Specifications

Voltage Rating: Up to 35kV, suitable for high-voltage electrical apparatus in power plants and transformer stations. Current Ratings: Common models support 1250A, 2000A, and 2500A.

Conductor Cross-

Section: Ranges from 50mm² to 630mm², allowing flexibility for different load requirements. Insulation: Fully insulated with high-resistance, self-extinguishing materials such as PVC, silicone, or co-extruded vinyl compounds. Insulation is flame-retardant, halogen-free, and capable of withstanding continuous temperatures up to 105°C.

Mechanical Structure: Many 35kV busbars adopt a bolt crimping structure for secure connections, and are fully sealed and screened to resist environmental factors like moisture, dust, and dew. Bending and Installation: Flexible design allows bending, folding, or twisting with a small bending radius, facilitating compact installations and easier manipulation within panels. Standards Compliance: Conforms to GB/T12706.

4-2002 and IEC 60502-4, with power frequency withstand voltage up to 117kV for 5 minutes and partial discharge levels below 10pC at 45kV. Environmental Resistance: Resistant to contamination, coagulation dew, and adverse weather conditions, requiring minimal maintenance.

Available Models and Featuresn

Vent ERIFLE

X Flexibar: Offers cross-sections from 7mm² to 1200mm² and current ratings from 125A to 2800A, with low-smoke, flame-retardant insulation suitable for low-voltage to medium-voltage applications.

SOCOME

C Insulated Flexible Copper Bars: Widths from 9mm to 100mm, copper layer thickness 0. 8–1mm, lengths up to 2m, with high flexibility and reduced installation time due to elimination of crimped terminals. 35kV F Busbar System: Specifically designed for GIS switchgear connections, fully insulated and screened, with energized protection caps for safety during testing and operation.

Applications

Connections between GIS switchgear, transformers, and cable branch boxes. Incoming and outgoing lines in power plants and transformer stations. Situations requiring compact, flexible, and maintenance-free high-voltage connections.

These 35kV flexible busbars provide a combination of high electrical performance, safety, and installation convenience, making them suitable for modern high-voltage electrical systems.