WAZIPOINT Engineering Science & Technology: Why Cable Lugs are used?

Thursday, December 28, 2023

Why Cable Lugs are used?

Cable Lug

Making the installation, repair, and maintenance of electrical devices and cable simple cable lugs are used. Cable Lugs link wires together or connect two or more cables. Cable Lugs also connect fuse sockets, load switches, and electrical equipment.

What is Cable Lug?

The full form of the lug is Lesbian Until Graduation (LUG).

According to the Etymology Dictionary, "lug" is "a broad-meaning word used for things that move slowly or with difficulty".

A cable lug is a connecting device used to connect the cable terminal to other cables or equipment. The other name for cable lug is Cable connector or cable anchor

Generally, Cable Lug is made up of aluminum, Copper, and Brass. Copper or aluminum or their respective alloys are suitable for cable lug manufacturing. 

How many types of lugs are available there in the market?

As per various installation processes and structural forms where cable lugs are generally used, the cable lugs are mainly divided into two types as per connection method: 

  1. bolt type, and 
  2. compression type.

As per used materials, cable lugs are of two types:
  1. Aluminum Lug
  2. Copper Lug.
A combination of two materials another type of lug may be called a bimetallic lug.

Different types of cable lugs and sizes of electrical lugs

  • Ring type cable lug sizes: 1, 2.5, 4, 6, 10, 16, 25, 35, 50, 70, 90, 120 (The diameter of the hole depends on bolt size such as 8 or 10).
  • Cable lug sizes of U type: 1, 2.5, 4, 6, 10, 16, 25, 35, 50, 70, 90, 120.
  • Bootlace type cable lug sizes: 1, 2.5, 4, 6, 10, 16, 25, 35, 50, 70, 90, 120.
  • Copper lug cable sizes range from: 1.5 sq mm to 1000 sq mm.

Common Used Cable Lugs

Copper lugs
Copper lugs are commonly used for energy drawing or grounding in massive gauge applications. The cable can be mended or crimped to each copper lug. Subject to the precise kind of lug used, one factor of the copper lug takes the cable by using welding, soldering, or crimping. The different factor of the copper lug is connected to a very stop or connection factor through a bolt, screw, or spring clip.

Copper cable lugs supply a simple setup and long-lasting authenticity. Pioneer copper lugs are made from high-grade copper cloth and tinned to guard against corrosion. It is viewed as a terrific alternative for any exterior software or in a marine environment.

Copper lugs are way higher in various ways, however, copper lugs are a little more exorbitant in contrast to aluminum lugs. Flat-type lugs are generally used in the electrical industry

Aluminum lugs

Aluminum lugs are made from strong aluminum rods that use of excessive conductivity (99.6 percent pure) aluminum. The aluminum lugs are manufactured from strong and association fabric and are apt for exterior utilization because the palm ends are sealed.

The aluminum cable lugs are geared up with jointing compounds in the barrels and are sealed with a cap at the endpoint. Pioneer has a listing of fundamental sizes, however, can produce aluminum lug sorts as per the needs.

Aluminum lugs are barrel entry chamfered at the give-up to permit easy insertion into a barrel and are tinned with a center layer of copper coating for corrosion protection.

What is the difference between long and short electrical cable lugs?

As per the cable lug barrel length, the cable lug may be divided into long cable lugs and short cable lugs. 

There are single-hole and two-hole lugs. Generally, it considers short barrel single-hole lugs as being general purpose standard duty. These long or short barrels and single-hole or double-hole lugs are used considering the mechanical strength or lite-duty or heavy-duty. When you get into the long barrel two-hole lugs, you get into heavy-duty high-amperage applications. Also, two-hole lugs are more commonly used in higher-voltage applications.

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