THE COLT EXTENDED CORRIDOR SYSTEM: EXTENDING TRAVEL DISTANCES IN MEANS-OF-ESCAPE CORRIDORS

Angel Meadows, Manchester

Colt's Extended Corridor System also aids fire-fighters by allowing the corridor to be cleared of smoke rapidly, even during the later stages of a fire, when a conventional system might well be overwhelmed.

Colt's alternative mechanical ventilation solution allows safe escape conditions to be maintained in the corridor, even when the travel distance is extended by a factor of 2 or 3 in one direction. In one recent instance, the travel distance was extended from 7.5m to 18m, thereby removing the need for an additional staircase, freeing up typically as much as 38m² of additional saleable or lettable space.

Read an article on this project, reproduced with permission from "Fire Safety Engineering" (October 2007).

The Extended Corridor System out-performs the conventional solution for both evacuation and fire-fighting, when the volumes of smoke could be much greater.

The Extended Corridor System is generally unaffected by external wind pressures, so is inherently more reliable.

The Extended Corridor System achieves exceptional smoke extraction performance by utilising a corridor extraction system (corridor ventilation system) at one end of the corridor and a dedicated air inlet system at the other.

For more more details, please see the leaflet and the specification. Videos compare the CFD results for two approaches, and are available to watch here: Conventional AOV System and Colt Extended Corridor Solution.

We also offer CPD seminars on a variety of subjects, including smoke ventilation using shafts.

Videos