⟩ What is distribution?
Supply of lower voltage electric power from a centralized substation to the point of end use.
Supply of lower voltage electric power from a centralized substation to the point of end use.
A 50 mm x 50 mm steel trunking has a tabulated space factor of 1037. If the tabulated factor for PVC cable having a cross sectional area of 6 mm2 is 21.2, the maximum number of these cables that can be installed into the trunking is
The four electrical tests that should be carried out on a new ring final circuit before it is energized are
Certain discharge luminaries mounted above rotating machine can give the appearance that the machine is at a standstill. This effect is known as
The Electricity at Work Regulations state that electrical equipment must be maintained to prevent danger. Electrical equipment is defined as all small items of battery-powered equipment up to and including overhead power lines rated at
In order to prevent danger during maintenance operations, a voltage warning notice is required on all electrical accessories where
Once a low-pressure mercury vapour lamp has lit, the purpose of the choke/ballast unit is to
Balancing loads over three phases will reduce
In order to facilitate maintenance of a complex electrical system, the sequence of control for isolation can be best shown using a
Which of the following normally form part of a highway electrical system?
Which of the following is a statutory document applicable to operatives carrying out installation and maintenance of highway electrical equipment?