COURSE OVERVIEW:

Hot cable jointing represents a specialized field within power distribution that utilizes thermal application methods to ensure the hermetic sealing and electrical integrity of cable connections. This course provides a technical deep dive into the thermodynamics and material behavior of heat-shrinkable components and resin-based systems. Participants will explore the precise temperature controls and flame application techniques required to achieve a void-free interface between cable layers, which is critical for preventing partial discharge.

The scope of this training addresses the practical mastery of gas torches, thermal sensors, and specialized adhesives used in high-voltage environments. It covers the technical nuances of cross-linked polymer behavior during the shrinking process and the chemical transition of hot-pour resins. The curriculum provides a detailed focus on the preparation of XLPE and PILC cables, ensuring that participants can manage the unique challenges of transitioning between different insulation types using hot-work methodologies.

Coverage includes the implementation of rigorous quality control measures, such as wall-thickness verification and longitudinal seal testing. Attendees will learn to manage the safety risks inherent in hot-work, including fire prevention, gas handling, and the management of toxic fumes in confined spaces. By combining material science with intensive hands-on thermal application exercises, the course equips professionals with the expertise required to deliver resilient cable joints capable of withstanding extreme electrical and environmental stresses.

COURSE OBJECTIVES:

After completion of this course, the participants will be able to:

• Explain the chemical and physical properties of heat-shrinkable polymers.
• Master the use of gas torches and heat guns for uniform thermal application.
• Identify the correct temperature ranges for different jointing materials.
• Execute hot-pour resin joints for low and medium-voltage applications.
• Perform professional stripping and cleaning of XLPE and PILC cables.
• Apply hot-melt adhesives to ensure moisture-proof longitudinal seals.
• Manage the cooling rates of joints to prevent internal mechanical stress.
• Install heat-shrinkable stress control tubes on high-voltage cables.
• Execute transition joints between paper-insulated and polymeric cables.
• Utilize thermal transition inserts to maintain insulation thickness.
• Conduct visual and tactile inspections of hot joints for defects.
• Adhere to strict hot-work permit systems and fire safety protocols.

TARGET AUDIENCE:

This course is intended for Senior Cable Jointers, Electrical Technicians, and Distribution Maintenance Teams specializing in thermal jointing systems.

TRAINING COURSE METHODOLOGY:

A highly interactive combination of lectures, discussion sessions, and case studies will be employed to maximize the transfer of information, knowledge, and experience. The course will be intensive, practical, and highly interactive. The sessions will start by raising the most relevant questions and motivating everybody to find the right answers. The attendants will also be encouraged to raise more of their questions and to share in developing the right answers using their analysis and experience. There will also be some indoor experiential activities to enhance the learning experience. Course material will be provided in PowerPoint, with necessary animations, learning videos, and general discussions.

The course participants shall be evaluated before, during, and at the end of the course.

COURSE CERTIFICATE:

National Consultant Centre for Training LLC (NCC) will issue an Attendance Certificate to all participants completing a minimum of 80% of the total attendance time requirement.