These are the most frequently used words in this book.
appliance
basic
between
cable
carried
case
casing
checks
class
combined
company
competent
conducting
conductor
connected
connection
contact
continuity
contractors
cord
current
duty
earth
electrical
employees
ensure
equipment
etc
examples
fail
fault
figure
fixed
form
formal
fuse
generally
holder
ii
iii
include
insp
inspected
inspection
instrument
insulation
items
lead
legislation
less
live
may
metal
method
mm2
months
must
need
none
ok
parts
person
phase
pin
plug
portable
record
regulations
resistance
responsible
results
safety
set
should
size
socket
suitable
supply
system
table
terminals
test
tested
tester
testing
two
types
unit
use
used
user
usually
value
visual
voltage
weekly
work
working
years
yes