Very few types of premises will require such a system. Each system must be designed to detect the escape or excessive concentration of the specific gases appropriate to the area of risk.The system shall be designed in consultation with the Fire Services Department.

Each system shall:

( a ) monitor the area of risk continuously;
( b ) be automatic in operation;
( c ) close down affected process if circumstances permit;
( d ) operate ventilation/exhaust system if appropriate;
( e ) be connected to the fire alarm system for the premises.

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