Escape Chute Multi Escape Chute

High Rise Escape Chute Systems.

Risk Safety Systems (RSS) Escape Chute Systems for the High Rise Buildings & Structures.

This multiple escape chute system is installed inside a protected vertical shaft enclosure that is constructed in accordance to local fire code and designed to provide protection in the case of fire.

This interior chute is constructed of 3 layers, the outer layer provides a speed restraining effect, and the inner layer supports the whole weight of chute.

The chute is installed in segments at each floor level and within the fire-protected shaft, one segment of chute per floor, from the highest floor to the ground floor on the same vertical line.

One chute serves many floors and occupants can gain access to the chute at each floor.

The longest chute in use is 165 meters at the Nation Tower, Bangkok, Thailand.

Technical Information for Multi-Entry Escape Chute System.

New Building Applications.

The multi-entry escape chute is normally built-in at the design stage and during construction, the chute is strategically located where occupants can easily and safely gain access during an emergency event.

• At the smoke free area and the central core of the building,

• At any strategic area(s) inside or outside the building.

Existing Building’s.

Selecting a possible installation site that can be converted into a precinct (small cubicle room), from the highest floor to the ground floor to safe exit on the same vertical line with no hindrances of piping, wiring, air-con ducts, etc at each level of ceiling floor:

• Reserved passage or corridors,

• Spare lifts structure,

• Cubicle toilet,

• Pantry or store room,

• Space at the central core of fire staircase,

• Extension of a rectangular structure out of the building similar

to a lift shaft.

Precinct (Small cubicle room)

The chute system requires a precinct (small cubicle room) with approximate area of 2-sq. m. at each floor of the building.

The position of the precinct from the top storey through the ground level on same vertical line has a similarity to a rectangular vertical lift shaft constructed inside/outside the building to serve every floor.

The construction of the precinct would be similar to the construction of a fire staircase but without stairs in accordance to the country’s fire and building code.

The precinct is constructed with the shortest side of the wall that is of at least 1000mm and the longest side of the which is at least 2000mm.

The rectangular precinct can have some parts of its perimeter curved. The wall of the precinct must be constructed with fire resistance materials of at least RF120 (120 minutes resistant to fire). Materials will be of MO category. A wall having a ceramic brick of 9cm thickness protected with chalk both sides are considered as acceptable.

Escape Chutes

The escape chute system for multi-entry applications is divided into segments or sections in accordance to the number of storey's within the building, minus the top storey. The highest storey will not have a chute segment. Each chute segment is held within the pre-cut floor hole using the chute top stainless steel ring. The lower end of each chute segment penetrates 30/40 cm into the next segment of chute of the following floor. The chute segment of the ground floor finishes 80/90 cm from the ground level in order to allow the person descending to free himself from the chute, with/without the help of an assistant.

Example of chute calculation:

Assuming a building with 10 storey's inclusive of ground floor (first storey), each storey is of 3 meters high, would need the following length of chute:

• 10 storey minus the highest storey = 9 chute sections.

• 9 chute sections = 8 separate chutes

• Each chute section =3 + 0.35m = 3.35m

• Therefore 8 chute sections =8 x 3.35m =26.80m

• The ground floor chute section = 3 – 0.85m = 2.15m

• Total length for 9 chute sections = 28.95m

9 holes would be required, from the floor of the highest storey to the floor of the second storey. The multi-entry escape chute installation consists of 3 layers of chute fabric: - the outer layer is heat resistant too 650 degrees and a melting point of 800 degrees, middle layer acts as the break and will slow the speed of descent, the final inner layer is the comfort and anti friction layer.

Fire Resistance Door

The entrance at each precinct is protected by fire resistance door of at least RF30 (RF 60 is usually installed). The minimum width of the door is 80cm and the height is 2m.

The door is always closed under normal condition. The doors for the upper floors are open inward and must never pass above the metal ring of the chute frame.

The door for the ground floor is open outward to ease final escape. Anti-panic bars can be installed on the doors for ease of evacuation.

Other Essential Elements:

• Emergency Exit Lights – each floor

• Emergency Lighting – each floor

• Emergency Light - each floor

• Service Lights – each floor

• A set of Rings (iron ring frame, aluminum ring, adjusting rubber profiles) – each floor

• Overpressure air supply system – one unit

• Inter-com system – each floor

• Smoke Hoods – each floor

Integrated System:

When the building is equipped with the emergency power supply (EPS) system, the various supplementary devices such as over pressurized fan, the inter-com system at each level and emergency lights could also be integrated into the multi-entry escape chute system to facilitate the better control during evacuation process. The building automation system will auto-start the various devices for ease of the evacuation process.

RSS can design a Escape Chute System to suite your particular needs, please call one of our fully trained representatives on:

Toll Free 1 866 447 8777 or email: sales@risksafetysystems.com

► Escape Chute Systems

► Emergency Escape Ladder

► Emergency Parachute

► Donut Descent Device

► Smoke Hoods

► SOLAS Rated Life Rafts

► Life Saving Equipment