TESDA Transmission Line Installation and Maintenance NC III Course

Transmission Line Installation and Maintenance is crucial for the functionality and reliability of electrical power systems. The course, Transmission Line Installation and Maintenance NC III offered by TESDA, equips individuals with essential skills for installing and maintaining transmission lines. It prepares participants for both the practical job aspects and for planning and executing maintenance effectively.

Also read: TESDA Automotive Wiring Harness NC II Course

The course offers a detailed curriculum on inspecting and assessing transmission line components, helping participants understand factors impacting performance. It combines theory and practical training, enabling individuals to tackle the maintenance challenges of the infrastructure powering our homes and industries. Ideal for those aiming for a career in this essential sector, it contributes to the sustainable and efficient energy transmission.

TESDA Transmission Line Installation and Maintenance NC III Course


Taking the “Transmission Line Installation and Maintenance NC III” course offers multiple benefits, including:

  1. Acquiring specialized operational skills in transmission line installation and maintenance.
  2. Gaining the ability to plan and implement maintenance works effectively.
  3. Learning to inspect and assess the condition of transmission line components accurately.
  4. Enhancing job readiness for roles in the energy sector and related fields.
  5. Building a strong foundation for advancing to higher qualifications and specialized roles in transmission line maintenance.

An individual who has attained this Qualification possesses the necessary skills and knowledge to excel in the following roles:

  • Senior Transmission lineman
  • Transmission Lineman

Units of Competency

Basic Competencies

  • Leading workplace communication
  • Leading small teams
  • Identifying / determining fundamental cause of problem
  • Using mathematical concepts and technique
  • Using relevant technologies
  • Developing and practicing negotiation skills

Common Competencies

  • Applying quality standards
  • Observing procedures, specifications and manuals of instructions
  • Promoting environmental protection
  • Operating a personal computer
  • Operating and maintaining transmission line tools and equipment

Core Competencies

  • Planning transmission line maintenance job
  • Implementing transmission line maintenance work
  • Inspecting / assessing transmission line components condition

Sample of Certificate of Completion


Assessment Methods

  • Written examination
  • Demonstration of practical skills
  • Direct observation
  • Interview

Also read: Best TESDA Courses for Work Abroad

Course Delivery

  • Modular
  • Demonstration
  • Lecture
  • Discussion
  • Dual training
  • Distance learning

Training Duration

  • Basic: 30 hours
  • Common: 60 hours
  • Core: 120 hours

Total: 210 hours


Students/trainees must have any of the following qualifications:

  • Able to communicate verbally and in writing
  • Good moral character
  • Minimum 5 years relevant experience in T/L installation and maintenance
  • Must have Transmission Line Installation and Maintenance NC II or equivalent
  • Physically and mentally fit


To enroll in this course, you will need the following documents:

  1. PSA Birth Certificate
  2. High School or College Diploma
  3. Certified True Copy of Official Transcript of Records or Form 137
  4. Certificate of Good Moral Character or GMRC
  5. 1 x 1 and/or 2 x 2 pictures

To obtain further details, please reach out to the enrollment site that aligns with your requirements. Kindly note that the criteria may vary.

Trainer Qualifications

  • Computer literacy required
  • Physical and mental fitness needed
  • Completion of Training Methodology III or equivalent necessary
  • Must possess Transmission Line Installation and Maintenance NC III or similar
  • At least 3 years of relevant experience required

These qualifications are vital for trainers in Transmission Line Installation and Maintenance NC III, ensuring they possess the necessary skills to effectively instruct students in this area.

Frequently Asked Questions

1. What are the job opportunities after completing this course?

  • Senior Transmission Lineman
  • Transmission Lineman

2. How many units of competency are included in this course?

A: There are a total of 9 units of competency, including basic, common, and core competencies.

3. Can I enroll in this course even if I do not have any experience in transmission line maintenance?

A: It is recommended to have at least 5 years of relevant experience in transmission line installation and maintenance before enrolling in this course.

4. Is there a certificate awarded after completing this course?

A: Yes, students who successfully complete the course and pass the assessment will receive a Certificate of Completion from TESDA. This certificate is recognized by both local and international industries, making it a valuable addition to your credentials.

5. Can this course be taken online?

A: The course includes some distance learning but mainly uses modules, demos, lectures, and discussions. This approach gives students hands-on experience and direct interaction with trainers for a more comprehensive learning experience.


The Transmission Line Installation and Maintenance NC III course offers extensive training in the setup and upkeep of transmission lines, blending theory with hands-on training. It equips students with essential skills for the energy industry or related sectors, promising career growth. Led by experienced instructors and featuring a comprehensive curriculum, this program sets participants up for success as transmission line specialists. Seize this opportunity for a fulfilling career in the energy sector! NC III graduates can advance to become Senior Transmission Lineman, Transmission Lineman, or professional line technicians.

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