Sign Up

Captcha Click on image to update the captcha.

Have an account? Sign In Now

Sign In

Forgot Password?

Don't have account, Sign Up Here

Forgot Password

Lost your password? Please enter your email address. You will receive a link and will create a new password via email.

Have an account? Sign In Now

You must login to ask a question.

Forgot Password?

Need An Account, Sign Up Here

You must login to add post.

Forgot Password?

Need An Account, Sign Up Here

Please briefly explain why you feel this question should be reported.

Please briefly explain why you feel this answer should be reported.

Please briefly explain why you feel this user should be reported.

Sign InSign Up

Find Authority

Find Authority Logo Find Authority Logo

Find Authority Navigation

  • Home

Mobile menu

Close
Ask a Question
  • Home
  • Recent Questions
  • Topics
  • Home
Home/Questions/Q 2876
Next
In Process
Anonymous
  • 0
Anonymous
Asked: December 19, 20202020-12-19T10:57:24+00:00 2020-12-19T10:57:24+00:00In: Energy

What is the difference between an underground transmission line and overhead transmission system?

  • 0

The transmission of electrical power can be done either through the usage of overhead or underground transmission lines. However, both lines have pros and cons when it comes to their common use and place.

Which transmission line is better: underground transmission line or overhead transmission system?

cableselectricity
  • 1 1 Answer
  • 0
Share
  • Facebook

    Leave an answer
    Cancel reply

    You must login to add an answer.

    Forgot Password?

    Need An Account, Sign Up Here

    1 Answer

    • Oldest
    1. Yabtir Ahor Level 2
      2020-12-19T10:57:44+00:00Added an answer on December 19, 2020 at
      This answer was edited.

      The overhead transmission lines are the pylons supported bared conductors. Pole transmission lines are mounted at certain distances to hold these conductors in the air. Underground lines are the insulated cables that are buried beneath the earth. The underground cables, vaults and trenches are installed.

      Location of fault:

      The overhead lines are visible; it is easy to detect the location of the fault and to repair it. Yet that becomes more difficult in case of underground line, so it may require some time to find and repair it.

      Effect of lightning: 

      Overhead line is more prone to thunders and natural lighting, whereas the underground line is not affected by lighting as they are buried deep under the earth.

      Life span: 

      In contrast to underground lines, the overhead lines provide a longer operating period. The life span of underground lines is 30 to 35 years about half of the overhead lines, whereas overhead lines can work for 70 years.

      Environmental impacts:

      The overhead and underground lines differ quite fundamentally when it comes to their respective impact on the environment. The underground lines have significant environmental and health safety advantages owing to reduced noise and better control of vegetation. Moreover, they provide minimal loss of transmission, less disruption and incidents such as electrocutions for wildlife. On the other hand, humans, animal intervention, natural disasters such as heavy wind storms and floods as well as larger plants can pull down the overhead lines. These conditions have a less visual impact on underground lines.

      Costs: 

      The cost of underground transmission lines is 5 to 10 times higher than the overhead line. Insulated cables, underground surveying and diggings, splicing vaults to protect the line from dig-in adds to higher costs.

      Applications: 

      Overhead transmission lines are used for the distribution system in the long-distance transmission system and rural areas due to the low cost of these systems. The overhead lines are more practical in open areas. In contrast, the underground lines are used in short distances, particularly in heavily populated areas because of the high cost. Secondly, where there is a big concern of space to the overhead lines.

       

      • 0
      • Reply
      • Share
        Share
        • Share on Facebook
        • Share on Twitter
        • Share on LinkedIn
        • Share on WhatsApp

    Sidebar

    Advanced Search
    Ask A Question

    Related Questions

    • What is the difference between UPS and inverters?

    • What are the differences between power and voltage amplifier?

    • What is the main difference between humidifier and dehumidifier?

    • What are the types of electrical power distribution system?

    • What are the advantages and disadvantages of DC transmission system?

    Explore

    • Home
    • Recent Questions
    • Topics

    Footer

    Find Authority

    Find Authority

    Find Authority is a professional networking and crowdsourcing platform which helps enhance members credentials and create opportunities.

    About Us

    • About Us
    • Careers
    • Contact Us

    Legal Stuff

    • Terms and Conditions
    • Privacy Policy
    • Cookie Policy

    Supprt

    • Help Centre
    • Badges

    Follow

    © 2020 Find Authority. All Rights Reserved

    Insert/edit link

    Enter the destination URL

    Or link to existing content

      No search term specified. Showing recent items. Search or use up and down arrow keys to select an item.