Cables are used for transfer of electrical power between two or more devices. These cables are formed by binding two or more wires together. Depending upon the need of customers the selection of cable differs. Cable protection and maintenance play a vital role as these cables carry electrical power to the systems.
This course helps students to know about the construction of cables, installation and maintenance.
After completion of this course, students will be aware of the process involved in construction, selection, installation and protection of cables in detail.
WHO SHOULD COMPLETE THIS COURSE?
- Electronics engineers
- Power system analysts
- Instrumentation engineers
- Electricians/Operators
- Electrical engineers
COURSE OUTLINE
CONSTRUCTION OF CABLES
- What is a cable?
- Cable components
- Conductor material choice
- Conductor shield
- Insulation & other requirements
- Cable screen, inner sheath, armour and outer sheath
- Common insulation materials
- PVC advantages & disadvantages
SELECTION OF CABLES
- Selection criteria
- Selection of voltage grade – 1 and 2
- Conductor material
- Aluminium conductor
- Types of insulation
- Core options in 3 phase systems
- Amor, sheath material sizing factors load current
- Use and application of correction factors
- Voltage drop & its significance
- Withstanding short circuit current
- Energy dissipation in cable
- Calculation for withstand
- K factor as per BS 7671
- Effects of prolonged short circuit current
- Cable size selection
- Oil and gas applications
CABLE INSTALLATION
- Installation aspects
- Types of laying
- Storage, Handling and transportation
- Unreeling and laying
- IEEE recommendation
- Installation – directly buried cables -1 and 2
- Installation – cables in conduits and trays
- Benefits – cables on tray
- Rack and support
- Other points for cables on tray
- Bonding jumper spanning a tray splice
FIRE PROTECTION FOR CABLE INSTALLATION
- Fire prevention & protection for cable installations
- Address fire threat
- Fire prevention
- Passive fire protection – 1 and 2
- Typical fire seal
- Fire-proof coating in cable runs
- Active fire protection & detection
- Fire alarm system - components and functions
- Fire extinguishing system
CABLE TERMINATION AND JOINTS
- Terminations
- Termination - functions and methods
- Basics of equipment termination
- Indoor termination
- Coordination with switchgear manufacturer
- Indoor switchgear panel
- Switchgear termination
- Termination to machines
- Outdoor termination components
- Outdoor terminations – features
- Correction orientation
- Cable joints and joint functions
- Types of joints
- New technologies
