CWL Outdoor-Indoor Aluminium Conductor Wall Bushing

outdoor indoor aluminium conductor wall bushing
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The CWL Outdoor-Indoor Aluminium Conductor Wall Bushing is a porcelain-insulated through-wall bushing designed for medium-voltage power systems.

Available in voltage ratings from 6kV to 35kV and current ratings up to 3150A, it provides dependable insulation and mechanical support for aluminum conductors in substations, switchgear, and industrial electrical installations

其他信息

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Product Details:

The CWL Series Outdoor-Indoor Aluminium Conductor Wall Bushing is designed for power stations, substations, switchgear, and high-voltage electrical equipment. It allows aluminum conductors or busbars to safely pass through walls, grounded partitions, and equipment enclosures while providing reliable electrical insulation and mechanical support. CWL bushings are widely used in medium-voltage distribution systems from 6kV to 35kV.

Model Designation

CWL – Outdoor-Indoor Aluminium Conductor Wall Bushing

  • CWL: Outdoor-Indoor Aluminum Conductor Wall Bushing
  • Voltage Class: 6kV, 10kV, 20kV, 24kV, 35kV
  • Current Rating: 200A–3150A
  • Installation: One end outdoor, one end indoor through-wall installation

Example

CWL-35/630

  • Rated Voltage: 35kV
  • Rated Current: 630A
  • Outdoor-Indoor Aluminum Conductor Wall Bushing

Technical Specifications

Parameter Value
Rated Voltage 6kV – 35kV
Rated Current 200A – 3150A
Frequency 50/60Hz
Conductor Material Aluminum
Insulator Material Electrical Porcelain
Installation Type Outdoor-Indoor Through Wall
Power Frequency Withstand Voltage Up to 100kV
Lightning Impulse Withstand Voltage Up to 231kV
Ambient Temperature -40°C to +40°C
Standard GB/T 12944.1, GB/T 12944.2
Pollution Class Standard and Anti-Pollution Types Available

Features

  • High-quality glazed porcelain insulation
  • Lightweight aluminum conductor design
  • Excellent dielectric performance
  • Strong mechanical strength
  • Suitable for indoor-outdoor wall penetration applications
  • Corrosion-resistant fittings
  • Long service life and low maintenance
  • Available in standard and anti-pollution versions
  • Reliable operation under harsh environmental conditions

Applications

  • Power transmission substations
  • Distribution substations
  • Power generation plants
  • Medium-voltage switchgear
  • Industrial electrical systems
  • Transformer stations
  • Busbar wall penetration systems
  • Electrical equipment enclosures

Available Ratings

Rated Voltage Typical Current Ratings
6kV 200A–3150A
10kV 200A–3150A
20kV 200A–3150A
24kV 200A–3150A
35kV 200A–3150A

Advantages of Aluminium Conductor Design

  • Lower weight compared to copper conductor bushings
  • Reduced installation cost
  • Excellent conductivity-to-weight ratio
  • Better compatibility with aluminum busbar systems
  • Reduced risk of copper-aluminum galvanic corrosion when connected to aluminum conductors

 

Technical Specification

 

outdoor indoor aluminium conductor wall bushing

 

Model Diagram Number Rated Voltage kV Rated Current A Total Length L L1 L2 Terminal Connectors Conductor Installation Flange Weight Kg
L3 a1 a2 d1 Hole Number b1 b2 b3 Busbar Quantity d a d2 Hole Number
CWL-10/200 1 10 200 520 360 158 75 15 30 11 2 4 30 / 1 114 175 14 2 5.7
CWL-10/400 1 10 400 520 360 158 75 15 30 11 2 5 40 / 1 114 175 14 2 5.8
CWL-10/600 1 10 600 560 360 158 95 20 40 13 2 8 40 / 1 114 175 14 2 6
CWL-10/1000 2a 10 1000 520 360 158 75 15 30 14 4 12 60 / 1 145 150 14 4 7.7
CWL-10/1500 2b 10 1500 520 360 158 75 15 30 14 4 12 60 10 2 145 150 14 4 8.8
CWL-10/2000 3a 10 2000 600 365 158 115 25 50 18 4 10 100 10 2 200 200 14 4 14.5
CWL-10/3000 3b 10 3000 600 365 158 115 25 50 18 4 12 100 10 3 200 200 14 4 17
CWL-20/2000 4a 20 2000 835 590 255 115 25 50 18 4 10 100 10 2 250 220 15 4 29.6
CWL-20/3000 4b 20 3000 835 590 255 115 25 50 18 4 12 100 10 3 250 220 15 4 33
CWL-35/200 5 35 200 980 815 372 75 15 30 11 2 4 30 / 1 220 200 15 4 31
CWL-35/400 5 35 400 980 815 372 75 15 30 11 2 5 40 / 1 220 200 15 4 31.2
CWL-35/600 5 35 600 1020 815 372 95 20 40 13 2 8 40 / 1 220 200 15 4 31.6
CWL-35/1000 6a 35 1000 980 815 372 75 15 30 14 4 12 60 / 1 245 220 15 4 33
CWL-35/1500 6b 35 1500 980 815 372 75 15 30 14 4 12 60 10 2 245 220 15 4 34.6

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