112. An employer shall ensure that—

(a) a fall arrest system incorporates means of absorbing energy and limiting the force applied to the user's body, and

(b) a fall arrest system is not used in a manner that—

(i) involves the risk of a line being cut,

(ii) where its safe use requires a clear zone (allowing for any pendulum effect) does not afford such zone, or

(iii) otherwise inhibits its performance or renders its use unsafe.