BS EN 1366-1:2014+A1:2020
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Fire resistance tests for service installations – Ventilation ducts
| Published By | Publication Date | Number of Pages |
| BSI | 2020 | 54 |
This Part of EN 1366 specifies a method for determining the fire resistance of vertical and horizontal ventilation ducts including those access panels, which are integral part of the tested ducts. The test examines the behaviour of ducts exposed to fire from the outside (duct A) and fire inside the duct (duct B). This Standard is used in conjunction with EN1363-1. Annex A provides general guidance and gives background information. This European Standard is not applicable to: a) ducts whose fire resistance depends on the fire resistance performance of a ceiling or wall(where ducts are located in cavities enclosed by fire-resistant shafts or ceilings); b) ducts containing fire dampers at points where they pass through fire separations; c) one, two or three sided ducts; d) fixing of suspension devices (e.g. anchors) to floors or walls.
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 2 | undefined |
| 8 | 1 Scope 2 Normative references |
| 9 | 3 Terms and definitions 4 Test equipment 4.1 General |
| 10 | 4.2 Furnace 4.3 Fan for duct A 4.4 Fan for duct B 4.5 Volume flow measuring station 4.6 Condensing unit 4.7 Damper 4.8 Air velocity measuring station |
| 11 | 4.9 Equipment for measuring gas pressure 4.10 Thermal expansion/contraction measuring device 4.11 Force measuring device 5 Test conditions 6 Test specimen 6.1 Size 6.1.1 General 6.1.2 Length |
| 12 | 6.1.3 Cross-section 6.2 Number of tests 6.3 Design 6.3.1 General 6.3.2 Minimum distance between the ducts and between ducts and furnace walls |
| 13 | 6.3.3 Configuration of duct A (horizontal only) 6.3.4 Openings in duct B 6.3.5 Access panel 6.3.6 Joints in horizontal ducts 6.3.7 Joints in vertical ducts |
| 14 | 6.3.8 Support for vertical ducts 6.3.9 Compensators 6.3.10 Steel ducts 6.3.11 Hangers 7 Installation of test specimen 7.1 General |
| 15 | 7.2 Standard supporting construction 7.3 Non-standard supporting constructions |
| 16 | 7.4 Fire stopping 7.5 Unsupported vertical ducts 7.6 Restraint of ducts 7.6.1 Inside the furnace 7.6.2 Outside the furnace 8 Conditioning 8.1 General 8.2 Water-based sealing materials 9 Application of instrumentation 9.1 Thermocouples 9.1.1 Furnace thermocouples (plate thermometers) |
| 17 | 9.1.2 Unexposed surface thermocouples 9.1.2.1 General 9.1.2.2 Maximum temperature rise 9.1.2.3 !Kitchen extract ducts or ducts with internal combustible linings 9.1.2.4 Compensating devices 9.1.2.5 Suspension device 9.1.2.6 Access panel 9.2 Pressure |
| 18 | 10 Test procedure 10.1 General 10.2 Control of conditions to permit assessment of integrity 10.2.1 Duct A 10.2.2 Duct B 10.3 Test measurements and observations 10.3.1 Integrity 10.3.1.1 For ducts A and B including where the ducts pass through the wall or floor: |
| 19 | 10.3.1.2 For duct A only: 10.3.2 Insulation 10.3.3 Thermal expansion/contraction and restraint forces 10.3.3.1 For horizontal duct A only 10.3.3.2 For horizontal duct B only 10.3.4 Additional observations |
| 20 | 10.4 Termination of the test 11 Performance criteria 11.1 Integrity 11.2 Insulation 11.2.1 General 11.2.2 !Additional criteria for kitchen extract ducts or ducts with internal combustible linings 11.3 Smoke leakage 12 Test report |
| 21 | 13 Field of direct application of test results 13.1 General 13.2 Vertical and horizontal ducts 13.3 Sizes of ducts |
| 22 | 13.4 Pressure difference 13.5 Height of vertical ducts 13.5.1 Ducts supported at each storey 13.5.2 Ducts supporting its own self load 13.5.3 Limitations on buckling |
| 23 | 13.6 Suspension devices for horizontal ducts |
| 24 | 13.7 Supporting construction 13.8 Steel ducts 13.9 Ducts with boards 13.10 Fire stopping 13.11 Access panel |
| 25 | 13.12 Compensators 13.13 Ducts with combustible lining |
| 49 | Annex A (informative)General guidance A.1 General A.2 Notes on apparatus A.2.1 Volume flow measuring station A.2.2 Extraction fan A.3 Notes on test specimens A.3.1 Design |
| 50 | A.3.2 Thermal expansion and contraction A.3.2.1 Effect on supporting constructions A.3.2.2 Effect on joints, attachments, etc. A.3.2.3 Restraint A.4 Notes on test conditions A.4.1 Temperature-time development A.4.2 Anticipated pressure ranges |
| 51 | A.5 Notes on procedure A.5.1 Air velocity in duct B A.5.2 Evaluation of duct in overpressure conditions A.5.3 Insulation and integrity A.6 !Notes on performance criteria for kitchen extract ducts or ducts with internal combustible linings |
