Regarding
electrical equipment designed to optimise patient safety, which one
of the
following
statements is TRUE?
a)
Under single fault conditions, type I, CF equipment should have a
leakage current in
the
order of 5mA
b)
Type BF equipment is safe because the patient circuit is earthed
c)
To promote patient safety a theatre suite should have an
uninterruptible power
supply
(UPS)
d)
Class III equipment is defined
as that which operates at ‘safety
extra-low voltage’
of
less
than 12V
e)
A current-operated earth-leakage circuit breaker relies on an
unacceptable current
causing
disintegration of a fuse that then breaks the circuit
