A640 Electrical Services Explained (3days) - London

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Trainer - John Woodward

A technical review of electrical systems in buildings from mains supply to socket outlet for specialists in other areas.

Day One - SUPPLIES, SWITCHGEAR & SAFETY

09.30-11.00 - Introduction (09.30-09.45) 
Power Supplies 
Electricity supplies at high & low voltage, maximum demand, substations, transformers, metering.

11.00 - 11.15 - Coffee

11.15 - 12.45 - Session 2
Generators & Uninterruptible Supplies.
Some loads in buildings are essential, reliability considerations, use of generators & uninterruptible power supply systems (UPS).

12.45 - 13.45 - Lunch

13.45 - 15.00 - Session 3
Distribution Switchgear & Protection
How main and sub-main circuits are determined, arranged and protected.

15.00 - 15.15 - Tea

15.15 - 16.30 - Session 4
Fuses & Circuit Breakers
Selection & use for equipment protection, overview of short circuits, earth faults & discrimination between devices.

16.30-17.00 - Review, Questions & Exercise.

Day Two - SYSTEMS, CIRCUITS & CABLES

09.30-11.00 - Session 1
Lighting Systems & Control
Different lighting & lamp types and electrical supply, switching arrangements.

11.00 - 11.15 - Coffee

11.15 - 12.45 - Session 2
Power Circuits
Ring mains and radial circuits, their uses & application. 
Motors, starters & overloads.

12.45 - 13.45 - Lunch

13.45 - 15.00 - Session 3
Wiring Systems & Containment
Matching wiring systems to the building. Merits & selection of current wiring practices. Cabling for fire & emergency lighting systems.

15.00 - 15.15 - Tea

15.15 - 16.30 - Session 4
Conductors and Cables
What influences the sizing of conductors to ensure safety and reliability. 
Simple cable sizing.

16.30-17.00 
Review, Questions & Exercise.

Day Three - INSPECTION, TESTING AND CERTIFICATES

09.30-11.00 - Session 1
Regulations
Overview of the Electricity at Work Regulations and the IEE Wiring Regulations - BS 7671.

11.00 - 11.15 - Coffee

11.15 - 12.45 - Session 2
Inspection and Testing (I&T) 
All electrical work must be inspected and tested before handover to comply with the Regulations.

12.45 - 13.45 - Lunch

13.45 - 15.00 - Session 3
Certification, Reporting
Every installation has to be certified. Information provided & certificates used are explained. Subsequent periodic I&T and Portable Appliance (PAT) Testing.

15.00 - 15.15 - Tea

15.15 - 16.30 - Session 4
Course Summary
A case study of the design and installation of a small electrical installation.

16.39-17.00 
Questions

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