What is an LT Bus Duct / Sandwich Bus Duct?

An LT Bus Duct (Low Tension Bus Duct) or Sandwich Bus Duct is an electrical power distribution system that carries and distributes low-voltage electrical current (typically up to 1,000V) through enclosed bus bars in a modular duct.

Why is an LT Bus Duct used?

It is used to distribute power safely and efficiently across buildings, industrial plants, data centers, and commercial facilities. A sandwich bus duct provides compact, reliable power transfer with less wiring and fewer connection points.

Where is an LT Bus Duct installed?

LT Bus Ducts are installed indoors or outdoors in factories, manufacturing units, commercial complexes, power plants, and places where large amounts of low-voltage power need to be distributed to multiple locations.

How does an LT Bus Duct work?

The bus duct consists of copper or aluminum bus bars assembled inside a protective enclosure. These bus bars carry electrical current, and the modular design allows easy extension, connection, and distribution of power to various loads.

What are the benefits of a Sandwich Bus Duct?

A Sandwich Bus Duct offers high current capacity, reduced installation time, easy maintenance, improved safety, lower voltage drop, and compact design compared to conventional cable systems.

Can an LT Bus Duct be customized?

Yes, LT Bus Ducts can be customized based on current rating, conductor material, insulation type, number of phases, and project requirements.

Is a Bus Duct safer than traditional cabling?

Yes. Bus Duct systems provide strong mechanical protection, fewer connection points, reduced fire risk, and better reliability, making them safer than long cable runs in many applications.

L.T. Bus Duct/Sandwich Bus Duct in Gujarat

Q: What materials are used in a Sandwich Bus Duct?

LT Bus Ducts typically use high-conductivity copper or aluminum bus bars, supported by insulating materials and enclosed within a steel or aluminum housing.

L.T. Bus Duct/Sandwich Bus Duct

Low-Tension Bus Duct (L.T. Bus Duct) or Sandwich Bus Duct is a system used for electrical power distribution in low-voltage applications. It serves as a reliable and efficient means to transfer electrical power from one location to another, often within the same facility. The term “sandwich” refers to the layered construction of the bus duct.

Components and Features

Conductors

The primary components are conductors that carry electrical current. These conductors are typically made of aluminum or copper, depending on the application and specific requirements.

Insulation

Sandwich Bus Ducts feature layers of insulating materials, such as epoxy resin-impregnated paper or other dielectric materials, separating the conductors to prevent short circuits.

Enclosure

The bus duct is enclosed in a protective housing, usually made of metal or other robust materials, to ensure safety and protection against environmental factors.

Supports and Connections

Bus ducts are designed with appropriate supports and connections to facilitate easy installation and maintenance.

Application

Industrial Facilities

L.T. Bus Ducts are widely used in industrial environments where there is a need for efficient and flexible power distribution. They are commonly employed in factories, refineries, and other manufacturing facilities.

Commercial Buildings

Large commercial buildings, such as shopping malls and office complexes, may use Sandwich Bus Ducts for distributing power to various sections of the building.

Power Plants

Bus ducts are integral components in power plants, providing a reliable means to transfer power between different sections of the facility.

Rating

Voltage Rating

L.T. Bus Ducts are designed for low-voltage applications, typically with voltage ratings of 415V or 800V.

Current Rating

The current-carrying capacity of the bus duct depends on the design and materials used. Ratings can range from hundreds of amperes to several thousand amperes, depending on the application.

Be a part of Synchro’s journey.
Join us and grow your expertise.

Advantages

Flexibility

L.T. Bus Ducts offer flexibility in designing and configuring power distribution systems. They can be easily adapted to changes in the layout or load requirements.

Efficiency

Bus ducts provide a low-impedance path for current flow, minimizing energy losses and ensuring efficient power transmission.

Space-Saving

Compared to traditional cable systems, bus ducts are often more compact, saving valuable space in electrical installations.

Ease of Installation

The modular design and ease of connection make installation and maintenance relatively straightforward.

Flexibility

L.T. Bus Ducts offer flexibility in designing and configuring power distribution systems. They can be easily adapted to changes in the layout or load requirements.

Efficiency

Bus ducts provide a low-impedance path for current flow, minimizing energy losses and ensuring efficient power transmission.

Space-Saving

Compared to traditional cable systems, bus ducts are often more compact, saving valuable space in electrical installations.

Ease of Installation

The modular design and ease of connection make installation and maintenance relatively straightforward.

Faqs

What is an L.T. Bus Duct or Sandwich Bus Duct?

An L.T. Bus Duct, also known as a Sandwich Bus Duct, is a power distribution system that uses insulated copper or aluminum busbars enclosed in a metal housing to safely carry and distribute large electrical currents.

What is the purpose of an L.T. Bus Duct?

The main purpose of an L.T. Bus Duct is to transfer electrical power from transformers or generators to distribution panels and other electrical equipment efficiently.

Why is a Sandwich Bus Duct used instead of cables?

Sandwich Bus Duct systems provide higher current carrying capacity, compact installation, better heat dissipation, and easier maintenance compared to traditional cable systems.

Where are L.T. Bus Duct systems commonly used?

They are commonly used in industrial plants, commercial buildings, power plants, data centers, and large facilities where high-capacity power distribution is required.

What materials are used in a Sandwich Bus Duct?

Sandwich Bus Ducts typically use copper or aluminum conductors along with insulation materials and a strong metal enclosure for protection.

What are the advantages of using an L.T. Bus Duct system?

These systems provide efficient power distribution, reduced power loss, improved safety, compact design, and easier installation.

What current ratings are available for L.T. Bus Duct systems?

L.T. Bus Duct systems are available in various current ratings depending on system requirements, typically ranging from a few hundred amperes to several thousand amperes.

Can L.T. Bus Duct systems be customized for specific projects?

Yes, they can be designed according to voltage levels, current capacity, installation layout, and project-specific electrical requirements.

Contact

Phone:

+91 9601965426

Email:

info@synchroelectricals.com

Address:

Plot No. 35 to 40, Ravaki Rev. Sur. No. 670, Pushti Parishar Industrial Area, Near Maa Khodal Ind-1, Ravki, Taluka Lodhika, Rajkot, Gujarat, India – 360004

L.T. Bus Duct/Sandwich Bus Duct

Components and Features

Application

Rating

Advantages

Faqs

Contact

Phone:

Email:

Address:

Quick Links

Get In Touch

© 2026 Synchro Electricals Pvt. Ltd. All Rights Reserved

Privacy Policy

Welcome to Synchro Electricals

Welcome to Synchro Electricals

L.T. Bus Duct/Sandwich Bus Duct

Components and Features

Application

Rating

Advantages

Faqs

Contact

Phone:

Email:

Address:

Quick Links

Get In Touch

© 2026 Synchro Electricals Pvt. Ltd. All Rights Reserved

Privacy Policy

Welcome to Synchro Electricals

Welcome to Synchro Electricals

Apply For Job