This module 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-toback
measurements to fit between two loop boxes. The finished conduit is fitted into
an overhead lighting circuit.
This module 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.
This module demonstrates in detail the preparation and installation of three types of
cable into a control box. FP200 cable, steel wire armoured cable and a mineral
insulated cable. The use of stripping tools is shown.
This module 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 switch, 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 busbar chamber.
This module shows in detail the inspection and testing of an electrical installation. It
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. Also
shown are isolating, locking keys, and the posting of warning notices. The video also
shows various tests carried out. These include, continuity of protective conductors,
test methods 1 and 2, continuity of ring final circuit conductors, polarity, insulation
resistance, earth fault loop impedance, operation of R.C.D.s and current injection.
Motors: This module demonstrates in detail the stripping down of a motor to replace
a faulty component, in this case a bearing. It shows the opening of a motor, removal
of the rotor and a visual inspection of the stator windings. It also shows the motor
being reassembled and the insulation resistance between the stator windings and
the body of the motor being tested.
Starters: The dismantling, disconnection and removal for servicing of a starter unit
is shown. The contact points are inspected and reassembled and the coil is removed
and checked for correct voltage rating. Also shown is the reassembly and connection
of the unit and testing of the remote stop and start buttons is carried out to ensure
correct function.
Code No 478
Time: 20 Mins