Busway System: Modern Power Distribution Solution

NGÀY ĐĂNG 03/11/2025

Võ Hồng Tiên

Previously, traditional electrical cables were the common choice, but with limitations in space, energy loss, and maintenance costs, more and more electrical experts are switching to the Busway (Busduct) solution – a closed electrical busbar system that offers comprehensive optimization.

So what makes Busway superior to conventional electrical cables? Why do modern buildings prioritize using this system? Let's explore the outstanding advantages, structure, and practical applications of Busway in the article below!

Introduction to the Building Busway System

What is a Busway System?

Busway (or Busduct) is a closed electrical busbar system designed to replace traditional electrical cables in power distribution for high-rise buildings, shopping centers, factories, and industrial zones. This system consists of busbars encased in an insulated metal housing, providing safer, more efficient, and more flexible power transmission compared to traditional electrical cables.

So why are more and more high-rise buildings, shopping centers, and factories switching to Busway instead of traditional electrical cables? What makes electrical experts choose Busway as an essential solution for the future? Is Busway truly superior, or is it just a temporary trend?

Why is the Busway System Gradually Replacing Traditional Electrical Cables?

With the demand for higher efficiency, safety, and space savings, the Busway (or Busduct) system is increasingly being widely used. So what makes Busway the optimal replacement solution?

Busway Optimizes Space and Facilitates Easy Expansion

• Traditional electrical cables require a large cable tray system, taking up significant space and making upgrades difficult.

• Busway has a compact design and modular installation, saving space and allowing easy expansion or modification without the need to shut down the entire system.

High Power Transmission Efficiency, Reduced Energy Loss

• Traditional electrical cables have higher impedance, increasing energy loss during transmission.

• Busway uses solid copper or aluminum busbars, reducing electrical resistance and enhancing heat dissipation, thereby significantly minimizing energy loss.

High Safety, Reduced Risk of Fire and Explosion

• Traditional cables are prone to issues at joints or cable ends over time, particularly overheating and short circuits due to loose connections.

• Busway has a heat-resistant, fireproof protective casing with securely designed connection points, reducing the risk of electrical short circuits and fires.

Easy Maintenance, Quick Installation

• Electrical cables require technicians to lay, bundle, and install each detail, consuming a lot of time and effort.

• Busway has a pre-assembled modular design, requiring only segment connections, reducing installation time by up to 50%.

Structure of the Busway System

Electrical Busbars (Busbar)

The busbar is the most crucial component of the Busway system, typically made of copper or aluminum, responsible for transmitting electrical currents in industrial and building power systems. Compared to traditional electrical cables, the busbar has a flat or rectangular box structure, improving conductivity and reducing operating temperature.

Busbar Material Types

• Copper Busbar

• Aluminum Busbar

• Copper-Aluminum Alloy Busbar

Protective Housing (Housing)

Housing is the outer metal casing of the Busway system, protecting the electrical busbar from environmental factors and ensuring electrical safety.

Busway Housing Materials

• Galvanized Steel

• Aluminum Alloy

• Stainless Steel

Insulation Layer (Insulation)

Insulation is a critical component of the Busway system, preventing electrical discharge, leakage, and overheating, ensuring safe and efficient operation.

Common Insulation Materials:

• Epoxy Resin

• Mica Tape

• Polyethylene or XLPE

• Insulating Paint

Applications and Role of the Busway System in Practice

High-Rise Buildings & Shopping Centers

• Provides stable power supply for lighting systems, air conditioning, elevators, and security equipment.

• Optimizes space without the complexity of cable installation like traditional wiring.

• Easy maintenance and expansion.

• High safety & fire resistance.

Factories & Industrial Zones

• Supplies high-power electricity (up to 5000A) for production lines and industrial machinery.

• Reduces energy loss.

• Easy maintenance and upgrades.

Why is the Busway System the Optimal Solution for Buildings?

• Higher safety, reducing fire hazards.

• Space optimization with a compact design.

• Flexible, easy expansion and system upgrades.

• Quick installation and easy maintenance.

• High efficiency, minimizing energy loss.

• A sustainable, environmentally friendly solution.

Why Choose KPS as Your Busway and Electrical System Provider?

As the official distributor of Legrand in Vietnam, KPS proudly offers high-quality Busway solutions that meet the highest global safety and performance standards.

Contact KPS today for detailed consultation and exclusive pricing!