FREE Download Electrical Installation Work by Brian Scaddan
Title: Electrical Installation Work
The Author: Brian Scaddan
File format: PDF
Book volume: 435 pages
File size: 8MB
Content in details:
Basic information and calculations
- Units, Indices, Simple algebra, Manipulation or transposition of formula
- The theorem of Pythagoras, Basic trigonometry, Areas and volumes
Electricity
- Molecules and atoms, Potential difference, Electron and conventional current flow
- Conductors and insulators, Electrical quantities, Ohm’s law, Electricity and the human body, Types and sources of supply
- Voltage bands, Measuring current and voltage, Components of a circuit
- Self-assessment questions
Resistance, current and voltage, power and energy
- Resistance, Voltage, Power, Electrical energy, Water heating, Efficiency
- Self-assessment questions
Electromagnetism
- Magnetism, Electromagnetism, Application of magnetic effects
- Waveform of an alternating quantity, Root-mean-square (r.m.s.), Average value
- Three-phase a.c. generator, Inductance, Induced e.m.f. due to change in flux
- Self-inductance, Mutual inductance, Time constant, Graphical derivation of current growth curve
- Energy stored in a magnetic field, Inductance in a.c. circuits
- Resistance and inductance in series (R–L circuits) , Impedance
- Resistance and inductance in parallel, Power in a.c. circuits, Transformers
- Self-assessment questions
Capacitors and capacitance
- Capacitors, Capacitance, Dimensions of capacitors, Capacitors in series & parallel
- Capacitors in d.c. & a.c. circuits, Capacitive reactance
- Resistance and capacitance in series & parallel, Working voltage
- Applications of capacitors, Self-assessment questions
Resistance, inductance and capacitance in installation work
- Power factor improvement with self-assessment questions
Three-phase circuits
- Star-delta connections, The neutral conductor, Current and voltage distribution
- Measurement of power in three-phase systems, Self-assessment questions
Motors and generators
- Direct-current motors, Alternating-current motors, Starters, Installing a motor
- Fault location and repairs to a.c. machines, Power factor of a.c. motors
- Motor ratings, Self-assessment questions
Cells and batteries
- General background, The primary cell, The secondary cell, Cell and battery circuits
- Self-assessment questions
Illumination and ELV lighting
- Light sources, Calculation of lighting requirements, Self-assessment questions
Electricity, the environment and the community
- Environmental effects of the generation of electricity
- Purpose and function of the National Grid
- Generation, transmission and distribution systems
- The aesthetic effects of the siting of generation and transmission plant
Health and safety
- The Health and Safety at Work Act 1974, Electricity at Work Regulations 1989
- Personal Protective Equipment Regulations (PPE)
- Construction (Design and Management) Regulations (CDM)
- Control of Substances Hazardous to Health Regulations (COSHH)
- The Building Regulations, General safety, The mechanics of lifting and handling
- Work, load and effort, Access equipment, The joining of materials, Fire safety
- Electrical safety, First aid
The electrical contracting industry
- Sample specification, Cost of materials and systems
Installation materials and tools
- Cables, Jointing and terminations, Plastics, Conduit, Trunking, Traywork
- Fixing and tools, Comparison of systems, Self-assessment questions
Installation circuits and systems
- Lighting circuits & layouts, Power circuits, Space heating systems, Thermostats
- Installation systems, Industrial & Multi-storey installations, Off-peak supplies
- Alarm and emergency systems, Call systems, Emergency lighting systems
- Central heating systems, Extra-low-voltage lighting, Choice of system
Earthing and bonding
- Earth electrode resistance, Earthing systems, Earth fault loop impedence
- Residual current devices, Supplementary bonding, Self-assessment questions
Protection
- Protection & Control, Points to note (IEE Reglations)
Circuit and design
- Design procedure, Design current, Nominal setting of protection, Correction factors
- Current-carrying capacity, Choice of cable size, Voltage drop, Shock risk
- Thermal constraints, Example of circuit design, Design problem
Testing
- Measurement of electrical quantities, current & voltage
- General instruments, Test instruments, Approved test lamps and indicators
- Accidental RCD operation, Calibration, zeroing and care of instruments
- Testing continuity of protective & ring final circuit conductors, Insulation resistance
- Testing polarity, earth fault loop impedance, earth electrode resistance
- External loop impedance Ze, Prospective fault current, Functional testing
- Periodic inspection, Certification, Inspection and testing, Fault finding
Basic electronics technology
- Electronics components, Semi-conductors, Rectification, Electronics diagrams
- Self-assessment questions
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