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Underground Line

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PMS

Dry-air Insulated Load Breaker Switch_Underground line

A device designed to provide stable power supply for sectionalizing and switching in urban underground distribution lines (Environment friendly, greenhouse gas-free product)

[
Description
]
  • Dry-air insulated underground Load Break Switch
  • Featuring an environmentally friendly insulation method, it offers easy maintenance and reliable operation
  • Primarily used to save space and ensure reliable power supply
[
Features
]
  • 01 Up to 6 way switchgear with earthing switch
  • 02 Counter of operation times
  • 03 Pressure gauge
  • 04 Vacuum interrupter for breaking the load current
  • 05 Overpressure relief device
[
Advantages
]
  1. 01

    Simple operating mechanism

  2. 02

    Switchgear vessel made of stainless steel

  3. 03

    Climate-independent

  4. 04

    Easy installation and operation

[
Specification
]
Item RA2L
Rated voltage 25.8
Rated continuous current 630
Rated power frequency withstand voltage 50/60
Rated lightning impulse withstand voltage 125/145
Rated frequency 50/60
Rated short-time withstand current 12.5/16
Rated peak withstand current 32.5/41.6
Rated duration of short circuit 1
Rated short-circuit making current 32.5/41.6
Mechanical endurance 5,000 (M2)
Rated Mainly active load breaking currents 630 (E3)
Rated cable-charging breaking currents 25
Rated line-charging breaking-currents 1.5
Operating time Close/Open ≤ 1.5
Applied standard IEC 62271-103