Alarm call points Manually operated alarm call points should provided all parts a
building where people may present, and should located that no
one need walk for more than 30m from any position within the prem-
ises order give alarm.
Cable tray Cable tray sheet-steel channel with multiple holes. current capacitive
circuit.
Bonding conductor protective conductor providing equipotential bonding.
Approved test instruments The test instruments and test leads used the electrician for testing an
electrical installation must meet all the requirements the relevant regu-
lations.
375
.Glossary terms
Acceleration Acceleration the rate change velocity with time.
Capacitive reactance Capacitive reactance (XC) the opposition a.
Alloy alloy mixture two more metals. causes the current the circuit lead ahead the voltage.
Bonding The linking together the exposed extraneous metal parts electri-
cal installation. The test instrument must also
carry calibration certificate, otherwise the recorded results may void. All testing must, therefore, carried out using ‘approved’ test
instrument the test results are valid.
Acceleration
Velocity
Time
(m/s 2
Accident accident may defined uncontrolled event causing injury or
damage individual property. The appointed person will also look after the first aid equipment,
including re-stocking the first aid box. The most common
finish hot-dipped galvanized but PVC-coated tray also available.
Basic protection Basic protection provided the insulation live parts accordance
with Section 416 the IEE Regulations.
Appointed person appointed person someone who nominated take charge when
someone injured becomes ill, including calling ambulance if
required. is
used extensively large industrial and commercial installations for sup-
porting and SWA cables which are laid the cable tray and secured
with cable ties through the tray holes.c
