广西FT Air Insulated Busway (Air Additional Insulation Type)

FT Air Insulated Busway (Air Additional Insulation Type)

Model Designation and Meaning 

Item	Description
①	Manufacturer code
②	Product model
③	Design category
④	Rated operating current
⑤	Phase and wire system code
⑥	Structural unit code
⑦	Special code

Operating Conditions

• Ambient temperature: Between -5°C and +40°C; average temperature over 24 hours shall not exceed +35°C

• Relative humidity: Not more than 90% at +20°C

• Altitude: Not exceeding 2000 meters

• Pollution level: Grade III

• Installation category: Class III and IV

• For special usage conditions, specific requirements must be stated in the contract; customized manufacturing will be provided accordingly.

Main Technical Parameters

• Rated insulation voltage: 660V

• Rated frequency: 50–60Hz

• Insulation resistance: ≥ 20 MΩ for each busway section (users should verify resistance before installation)

• Dielectric strength: Each busway section undergoes factory testing with 50Hz/3750V for 1 minute

• Short-circuit strength: Busway must withstand the thermal and dynamic stress from rated short-time withstand current and peak withstand current without any permanent visible deformation