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BSI PAS 121:2007

BSI PAS 121:2007

$34.26

Specification for active fire curtain barrier assemblies and active fire barrier assemblies with smoke rating

Published By Publication Date Number of Pages
BSI 2007 42
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PDF Pages PDF Title
3 Contents
0 Introduction 1
1 Scope 2
2 Normative references 3
3 Terms and definitions 4
4 Product requirements 6
5 Performance requirements and classifications 18
6 Installation information 23
7 Maintenance information 23
8 Marking and labelling 24
Annexes
Annex A (informative) Building management 25
Annex B (normative) General testing requirements 25
Annex C (normative) Test method for reliability and response time of the product and the durability of materials 27
Annex D (normative) Test method for the determination of the fire resistance performance of fire curtain barrier assemblies 28
Annex E (informative) An engineered approach to using insulating zones 32
Annex F (informative) Thermal limits – Human factors 33
Bibliography 34
List of figures
Figure 1 – Protection of side retention guide 7
Figure 2 – Overlapping and conjoining of active fire curtain barrier assemblies – Typical example 20
Figure D.1 – Orientation of test specimen 29
List of tables
Table 1 – Overview of typical barrier test specification 8
Table 2 – Initiation of deployment 10
Table 3 – Applications, method of deployment and initiation 11
Table 4 – Operation of barrier when in operational position 13
Table 5 – Warning systems 14
Table 6 – Number of cycles for testing reliability and durability 18
Table A.1 – Maintenance testing of active fire curtain barrier assemblies 25
5 Foreword
7 0 Introduction
0.1 General
0.2 Function of gravity fail-safe fire curtain barrier assemblies
0.3 Application of active fire curtain barrier assemblies
8 0.4 Deployment of active fire curtain barrier assemblies
a) barriers deploy fully upon receipt of a signal from the fire alarm system;
b) barriers remain retracted when the fire alarm system is activated and only deploy upon receipt of a signal from a local smoke…
c) barriers remain retracted when the fire alarm system is activated for a predetermined time to allow for evacuation before deploying fully;
d) barriers move to given height above fixed floor level when the fire alarm system is activated and act as a smoke barrier for a predetermined time before closing fully for fire containment;
e) barriers only deploy upon local detection of smoke or fire, independent of the fire alarm system such as a fusible link;
f) barriers are required to remain retracted as part of a buildings smoke extraction design;
g) barriers will deploy on loss of primary and auxiliary power supply.
1 Scope
a) in creating protected routes for the purpose of means of escape as an alternative to fire doors, non-load bearing walls, non-load bearing ceilings or fire shutters;
b) in creating fire separation horizontally, vertically or angled for compartmentation;
c) as a method of upgrading non-fire resisting elements, e.g. in front of non-fire resisting glazing and doorsets, where required for compartmentation or protecting means of escape;
d) in providing a smoke barrier in conjunction with non-smoke rated doors/shutters and other products protecting openings to reduce leakage of smoke.
9 2 Normative references
10 3 Terms and definitions
3.1 active fire curtain barrier assembly
3.2 active fire curtain barrier assembly with smoke rating
3.3 barrier movement
3.4 compartmentation
3.5 deployment
3.6 fire operational position
3.7 fire separation
3.8 fitness for purpose
11 3.9 gravity fail-safe
3.10 integrity
3.11 insulation
3.12 insulating zone
3.13 life safety application
3.14 multi-positional deployment
3.15 radiation (total heat flux)
3.16 side retention
3.17 smoke and heat control system
3.18 smoke barrier
12 4 Product requirements
4.1 Installation
4.1.1 General
4.1.2 Side retention
13 Figure 1 Protection of side retention guide
14 4.2 Operation
4.2.1 General
Table 1 Overview of typical barrier test specification
15 4.2.2 Initiation of deployment
a) fire curtain barrier assembly operated by building fire alarm system;
b) fire curtain barrier assembly operated by a stand alone initiation on their own independent detectors separate from the alarm system;
c) fire curtain barrier assembly with more than one function (e.g. smoke control and fire resistance) where a fire engineered ap…
d) fire curtain barrier assembly requiring a double signal to operate such as the alarm system and a local heat detector (e.g. e…
4.2.3 Multi-positional deployment
16 Table 2 Initiation of deployment
17 Table 3 Applications, method of deployment and initiation
18 4.2.4 Emergency retract facility
a) Means of escape:
b) Emergency services access:
2) Where the barriers are overlapped, the overlap may be used for access/egress by the emergency services as an alternative to raising the fire/smoke barrier. Relevant signage shall be considered.
19 Table 4 Operation of barrier when in operational position
20 4.2.5 Warning systems
Table 5 Warning systems
21 4.3 Power supplies
4.3.1 General
a) battery set insufficiently charged;
b) faulty battery set (e.g. short circuit);
c) battery set not connected to load (e.g. open circuit).
22 4.3.2 Electrical
a) BS 7346-6;
b) BS 8434-2 for cables with a core size of up to 2.5 mm2.
a) loss of primary power source, within 30 min of the occurrence;
b) loss of secondary power source, within 15 min of the occurrence;
c) loss of battery charger, within 30 min of the occurrence;
d) reduction of the battery voltage to less than 90% of its rated voltage within 30 min of the occurrence.
4.3.3 Secondary power supplies
23 a) the rechargeable type;
b) suitable to be maintained in a fully charged state; and
c) clearly labelled.
a) the battery is charged automatically;
b) if the battery has been discharged to its final minimum voltage, it can be recharged to at least 80% of its rated capacity within 24 h;
c) the charging characteristics are within the battery power source manufacturers’ specification.
a) be accessible without the use of a key but protected to prevent operation by unauthorized persons (e.g. located in an enclosu…
b) have permanent markings to indicate its purpose and the operating positions of the controls.
4.4 Resistance to heat
24 5 Performance requirements and classifications
5.1 General
5.2 Reliability and durability
Table 6 Number of cycles for testing reliability and durability
5.3 Response time and velocity
a) Active fire curtain barrier assemblies shall commence deployment immediately upon initiation or any initiation failure and move to their fire operational position, in all operating modes, at a velocity range between 0.06 m/s and 0.30 m/s.
b) Active fire curtain barrier assemblies which may be located in critical areas of a building, e.g. escape routes, entrances/exits to escalators or stairways, shall have a velocity range of 0.06 m/s to 0.15 m/s.
25 5.4 Smoke leakage (containment efficiency)
5.4.1 General
5.4.2 Permeability of full active fire curtain barrier assembly to smoke
5.4.2.1 General
5.4.2.2 Total smoke leakage of active fire curtain barrier assemblies with smoke rating
5.4.3 Multiple barrier applications
26 Figure 2 Overlapping and conjoining of active fire curtain barrier assemblies – Typical example
5.5 Integrity
a) The assessment of integrity shall be made on the basis of the following three aspects:
2) ignition of a cotton pad;
3) sustained flaming on the unexposed face.
b) Test specimens shall not release flaming droplets or particles within the first 600 s.
27 a) Where an element is classified for insulation (I), the integrity value (E) shall be determined by whichever of the three aspects [see 5.5.2 a)] fails first.
b) Where an element is not classified for insulation (I), the integrity value (E) shall be defined as the time to failure of only the cracks/openings or sustained flaming criteria, whichever fails first.
5.6 Insulation
5.7 Insulating zone
28 5.8 Radiation (total heat flux)
5.9 Pressure and impact
29 6 Installation information
a) fixing component information;
b) power requirements and connections;
c) installation instructions including perimeter requirements of insulating zone to allow for fire pressure and to prevent contact with other items where applicable;
d) commissioning procedure;
e) warnings to avoid obstructions to operation;
f) operating instructions, with maximum operating and loading tolerance for the product, e.g. maximum barrier weight, bottom bar weights, minimum/maximum motor speeds, overlapping and conjoining, and fixing methods.
7 Maintenance information
a) inspection and maintenance procedures;
b) recommended procedures for operational checks;
c) recommended check for obstructions to operation, e.g. by cosmetic finishes, lighting, shelving, sales displays or racking;
d) recommended insulating zone area;
e) recommended check for the effects of corrosion, etc.;
f) recommended check for mechanical fastenings;
g) recommended check for power supplies and controls;
h) recommended check for penetrations, holes, etc.;
i) recommended check for anything which materially affects the performance of the product.
30 8 Marking and labelling
a) the number and date of this specification, i.e. PAS 121:2007 ;
b) the product, i.e. active fire/smoke barrier;
c) installation and maintenance requirements;
d) the response time (see 5.3);
e) the openings, gaps and leakage (see 5.4);
f) integrity (see 5.5);
g) insulation (see 5.6) or insulating zone (see 5.7);
h) radiation (see 5.8).
31 Annex A (informative) Building management
Table A.1 Maintenance testing of active fire curtain barrier assemblies
Annex B (normative) General testing requirements
B.1 General
a) reliability and durability of product (see Annex C);
b) default operation to fire operational position (see Annex C);
c) response time and performance (see Annex C);
d) material permeability to smoke (see 5.4.2);
e) temperature/time classification (see Annex D);
f) integrity (see Annex D);
g) radiation (see Annex D);
h) insulating zone test procedure for product (see Annex D).
32 B.2 Test specimen
a) One specimen shall have a maximum width of 3 m and a minimum test barrier movement of 60% of the claimed maximum barrier move…
b) The other specimen shall be tested for reliability and durability only and shall have a minimum width of 10 m (or the largest…
B.3 Test report
a) name or trademark, and address of the manufacturer and/or supplier;
b) name of the product (type and model);
c) date(s) of the test(s);
d) name(s) and address(es) of the testing organization;
e) full and detailed description of the test specimen, which shall include any comments regarding the family, the material integrity, weight and tensioning, if appropriate;
f) reference to the test method(s);
g) observations during the test(s);
h) approved insulating zone;
i) fixing and installation methods;
j) test results and classifications achieved.
33 Annex C (normative) Test method for reliability and response time of the product and the durability of materials
C.1 Principle
C.2 Test equipment
C.3 Test specimen
C.4 Test method
34 C.5 Expression of results
a) the active fire curtain barrier fails to complete a minimum number of continuous cycles in accordance with Table 6;
b) after completion of a minimum number of continuous cycles in accordance with Table 6, a 6 mm diameter rod or a 25 mm ¥ 2 mm strip can be passed through any perforation, tear or crack in the material without undue force.
C.6 Test report
Annex D (normative) Test method for the determination of the fire resistance performance of fire curtain barrier assemblies
D.1 Principle
D.2 Test specimen
D.2.1 Dimensions
35 D.2.2 Hems and joints
a) Fire curtain barrier assemblies with horizontal joints shall be tested with a horizontal joint within 1 m of the top of the barrier.
b) Fire curtain barrier assemblies with a vertical joint shall be tested with at least one joint located 0.75 m to 1.25 m from a vertical side of the barrier.
c) Fire curtain barrier assemblies with side hems shall be tested with at least one side hem.
D.2.3 Orientation
Figure D.1 Orientation of test specimen
36 D.3 Fire test
D.3.1 General
D.3.2 Insulating zone
37 a) the temperature change of the thermocouple throughout the test;
b) the distance between the thermocouple and the specimen surface a minimum of every 30 min.
D.4 Performance criteria
D.4.1 Integrity
D.4.2 Insulation
D.4.3 Radiation
D.4.4 Insulating zone
D.5 Expression of results
D.6 Test report
a) insulation zone measurements;
b) radiation output data;
c) parts, components and flaming droplets falling from the test specimen;
d) changes in the specimen relating to the fixing methods;
e) holes or cracks occurring in the test specimen.
38 Annex E (informative) An engineered approach to using insulating zones
39 Annex F (informative) Thermal limits – Human factors
40 Bibliography
[1] COMMUNITIES AND LOCAL GOVERNMENT. The Building Regulations 2000: Approved Document B – Fire safety (Volume 1 and Volume 2). Newcastle upon Tyne: NBS, 2006. (http://www. planningportal.gov.uk/uploads/br/BR_PDF_ADB_2000.pdf)
[2] COMMUNITIES AND LOCAL GOVERNMENT. The Building Regulations 2004: Approved Document M – Access to and use of buildings. Newcastle upon Tyne: NBS, 2006. (http://www. planningportal.gov.uk/uploads/br/BR_PDF_ADM_2004.pdf)
[3] IMO Resolution MSC61 (67): Annex 1, Part 2. 1999 Publisher: International Maritime Organization. (http://www.mss-int.com/msc61.html#PART%202%20-% 20SMOKE%20AND%20TOXICITY%20TE)
[4] J C MECKLENBURG. Chemical engineering (process plant layout). London: Godwin in association with the Institution of Chemical Engineers, 1985.

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BSI PAS 121:2007
$34.26