• By the end of this training course, participants should be able to:

  • Excellent understand of Electrical distribution system
  • Difference between using OHTL & UGC
  • Cover all type of power distribution system OHTL
  • Cover OHTL overhead transmission lines ( over ground cables ) component and accessories
  • OHTL overhead transmission lines ( over ground cables ) installation
  • OHTL overhead transmission lines ( over ground cables ) protection devices
  • Maintenance of OHTL overhead transmission lines ( over ground cables )
  • Develop an in-depth understanding of the construction and design principles of above-ground cables, including insulation materials, conductor types, and shielding techniques.
  • Fault Location in OHTL
  • Symbols and marks on OHTL
  • Electrical characteristics of lines
  • Routing and structure spotting
  • Conductor, hardware, and material information
  • Structure loadin

• Electrical Engineers
• Electrical Supervisors
• Maintenance Technicians
• Electricians
• Project Engineers
• Operation &maintenance engineers,

• 35% Lectures, Concepts, Role Play
• PowerPoint
• Projector and white board

• 30% Workshps & Work Presentations, Techniques

• 20 % In-Class
• Group Exercises
• Individual & Group Exercises
• Case Studies
• work project

• 15% Videos, Software & General Discussions
• Pre and Post Tes

Module One:

• PRE-TEST
• Introduction to electrical network configuration
• Distribution systems Operation Characteristics
• Power cables importance in power system
• Overhead line importance in power system
• Underground VS Overhead cables
• Comparisons between under voltage cables and OHTL
• Single line diagram
• Balance of power
• Overhead codes, regulation and standards
• H.T.L construction
• H.T.L Conductor
• Electrical Characteristics
• Sag Tension
• Conductor Selection
• Conductor Motion
• Types of Overhead Ground Wires
• Size of lugs
• Conductor sizes

• H.T.L insulator
• H.T.L Accessorise
• Operating voltage , Insulators and Conductors
• Aluminum conductor steel-reinforced transmission lines( ACSR)
• The difference between ACSR, AAC and AAAC Conductors

Module Two:

• Bundle conductors
• Ground wires
• Compact transmission lines
• Types of poles (Metal , fibre , Concrete , Wood )
• Configuration and shape of OHTL
• Types of installation
• Insulators of overhead transmission lines (Disc type, Long rod type. Pin type and Post type)
• Testing of O.H.T.L. insulators according to IEC and B.S.
• Types of Soil
• Types of foundation
• Foundation in water soil
• Foundation in hard Soil
• Mixing concrete
• Concrete strength
• Low voltage, medium voltage and high voltage O.H.T.L
• Further applications
• Usage of area under overhead power lines
• Earthing ( Grounding ) of pools
• Lightening Protection of OHTL

Module Three:

 Electrical problems in OHTL (Ferranti effect )

• Maintenance of OHTL
• Repeated problem of OHTL
• Vibration and corrosion
• Environmental effect
• OHTL protection
• Types of faults for electrical networks
• Replacement of towers element
• Conductors’ maintenance
• Conductors’ joints
• Replacement of damage part of conductor
• Insulator maintenance
• Insulator hot wash
• Replacement Tension insulator

• Replacement Tension insulator
• Replacement suspension insulator
• Overhead Transmission Line Safety
• basic procedures for safety during maintenance
• personal protective equipment
• Temporary grounding connection
• Tower grounding and measurement of earth resistance
• Use of area under overhead power lines
• Maximum Current Carrying Capacity of OHTL
• Power Carrying Capacity
• Insulated conductors (Thermoplastic materials, Thermoset materials)
• General Discussion
• Post test

CDGA attendance certificate will be issued to all attendees completing a minimum of 80% of the total course duration.