Skillbank: Electrical Installation (6 Parts)

Synopsis

A series of six videos demonstrating electrical installation skills.

Series

Skillbank, Series

Language

English

Country

Great Britain

Subjects

Engineering; FE

Keywords

motors; electrical engineering; starters

Distribution Formats

Type

VHS

Format

PAL

Price

£45.00 each

Availability

Sale

Duration/Size

20, 19. 24, 15, 23, 21 minutes

Year

1997

Sections

Title

Conduits

Synopsis

Demonstrates in detail the fabrication of two pieces of conduit: a saddle or bubble set combined with a double set; two right angle bends involving back-to-back measurements to fit between two loop-in boxes. The finished conduit is fitted into an overhead lighting circuit. The video points out the importance of using the correct tools which are in good working order, and measuring techniques. Key health and safety precautions are emphasised thorughout.

Duration

20 mins

Title

Cable Trunking and Trays

Synopsis

Demonstrates in detail the fabrication of a length of cable trunking and a length of cable tray, each with a slow bend of 90 degrees made from two 45 degree bends. The video points out the importance of using the correct tools, which are in good working order, and measuring techniques.

Duration

19 mins

Title

Installing Cables

Synopsis

Demonstrates in details the preparation and installation of three types of cable into a control box: FP200 cable; steel wire armoured cable; M.I. (mineral insulated cable). The use of stripping tools is shown. The video points out the importance of using the correct tools, which are in good working order. Key health and safety precautions are emphasised throughout.

Duration

24 mins

Title

Terminating Cables

Synopsis

Demonstrates in detail the termination of a range of cables using different types of compression tool: twin and earth cable connected to a fused isolator switch; pre-insulated terminals secured to cable ends by a hand operated compression tool; three-phase steel wire armoured cable using a hydraulic compression tool and a vice-held manual compression tool; a range of cables fitted into a bushbar chamber. The video points out the importance of using the correct tools, which are in good working order. Key health and safety precautions are emphasised throughout.

Duration

15 mins

Title

Inspection and Testing

Synopsis

Shows in detail the inspection and testing of an electrical installation. The video emphasises the importance of proving the instruments on a known supply prior to use. The testing of the instruments, voltage indicators and test lamps is shown. Before starting the inspection the main isolator switch is switched off, the locking key removed and a warning notice posted. The terminal box is opened and the circuit proved ‘dead’ by a test lamp which is itself proved. The video shows the following tests being carried out: continuity of protective conductors, test methods 1 and 2; continuity of ring final circuit conductors; polarity; insulation resistance; earth fault loop impedance; operaton of RCDs; current injection. The video points out the importance of using the correct test instruments. Key health and safety precautions are emphasised throughout.

Duration

23 mins

Title

Servicing a Motor and Starter

Synopsis

Motors - Demonstrates in detail the stripping down of a motor to replace a faulty component, in this case a bearing. It shows the opening of the motor, removal of the rotor and a visual inspection of the stator windings. After the new bearing has been fitted the motor is reassembled and the insulation resistance beween the stator windings and the body of the motor is tested.

Starters - The dismantling, disconnection and removal for servicing of a starter unit are shown. The contact points are inspected and reassembled and the coil is removed and checked for the correct voltage rating. After the starter has been reassembled and reconnected both the unit and the remote stop and start buttons are operated to test for correct function.

The video points out the importance of using the correct tools, which are in good working order. Key health and safety precautions are emphasised throughout.

Duration

21 mins

Distributor

Name

Educational Broadcasting Services Trust

Address

No longer trading

Notes

Educational and training materials with an emphasis on maths, science and skills development, produced in collaboration with consortia of university and college academics and media departments under the auspices of the Educational Services Broadcasting Trust. Series include Maths for Engineers, Shotlist, and the Skillbank vocational skills training programmes. For sale on DVD or via download. Now ebst online is part of FENC. (www.fenc.org.uk). Now possibly part of Blended Learning Consortium.