Emergency Voice Communication (EVC) ia a system that is interlinked with the fire alarm to give evacuation or emergency messages throughout the premises for all occupants.
One way emergency voice evacuation system as well as an emergency command center shall be provided as follows;
- For large buildings with gross floor area greater than 2,800 sqm or having a total occupant load exceeding 1000 persons and large industrial and warehouse buildings with gross floor area greater than 5,000 sqm.
- For all buildings which are categorized as high rise or an assembly
- For Hotel or health care occupancies of less than 23m building height