• 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.