The fire resistance of 3M Fire Barrier Duct Wrap 615+ protection system

Transcription

1 INFRASTRUCTURE TECHNOLOGIES The fire resistance of 3M Fire Barrier Duct Wrap 615+ protection system Short Form Assessment Report Author: Assessment Number: Short Form Report FCO 3273 A Quote Number: CO4868 Date: 15 th December 2017 Version: Revision A The Client: 3M Australia Pty Ltd Commercial in confidence

2 Inquiries should be addressed to: Fire Testing and Assessments NATA Registered Laboratory 14 Julius Avenue North Ryde, NSW 2113 Telephone Author Infrastructure Technologies 14 Julius Avenue North Ryde, NSW 2113 Telephone The Client(s) 3M Australia Pty Ltd Building A, 1 Rivett Road North Ryde NSW Telephone Report Details: Report CSIRO Reference number: FCO 3273/ CO4868 Report Status and Revision History: VERSION STATUS DATE DISTRIBUTION ISSUE NUMBER Initial Issue Final 1/12/2017 Client/CSIRO Short Form Report FCO 3273 Revision A Final 15/12/2017 Client/CSIRO Short Form Report FCO 3273 A Report Authorization: AUTHOR REVIEWED BY AUTHORISED BY Keith Nicholls Brett Roddy Brett Roddy 15 th December th December th December 2017 Copyright and disclaimer 2017 CSIRO To the extent permitted by law, all rights are reserved and no part of this publication covered by copyright may be reproduced or copied in any form or by any means except with the written permission of CSIRO. Important disclaimer CSIRO advises that the information contained in this publication comprises general statements based on scientific research. The reader is advised and needs to be aware that such information may be incomplete or unable to be used in any specific situation. No reliance or actions must, therefore, be made on that information without seeking prior expert professional, scientific and technical advice. To the extent permitted by law, CSIRO (including its employees and consultants) excludes all liability to any person for any consequences, including but not limited to all losses, damages, costs, expenses and any other compensation, arising directly or indirectly from using this publication (in part or in whole) and any information or material contained in it. Short Form Report FCO of 12

3 Contents 1 Introduction Supporting Data Proposed Variations Referenced Standards Conclusion Direct Field of Application of Results Requirements Term of Validity Limitations Short Form Report FCO of 12

4 1 Introduction This short from report refers to an assessment of the fire resistance of the 3M Fire Barrier Duct Wrap 615+ protection system in accordance with AS for internal fire exposure. This report is prepared for the purpose of meeting the Evidence of Suitability Requirements of NCC Volume 1 Specification A2.3 for FRL. This report reviews and confirms the extent to which the reference tests listed in Section 2 meet the requirements of the test standards listed in Section 4 of the report. The proposed variations to the tested construction presented in Section 3 are subject to an analysis in Appendix B and the conclusions are presented in Section 5 of this report. 2 Supporting Data This assessment report refers to various test reports to support the analysis and conclusions of this report. They are listed below; Report Reference Test Standard Outline of Test Specimen FSV 1844 AS ASTM E119 Duct protected with 3M Fire Barrier Duct Wrap 615+ for internal fire exposure Exposure of a Steel Wall Containing Grease Duct Access Doors The test report FSV 1844 was undertaken by CSIRO North Ryde and sponsored by 3M Australia Pty Ltd. The test report was undertaken by Omega Point Laboratories, Shady Falls Road Elmendorf, Texas and sponsored by 3M Company. 3 Proposed Variations The proposed construction shall be as tested in FSV 1844 and subject to the following variations; Optional inclusion of 150mm wide third layer of wrap at collar for 120 minute applications. Confirm required length of the double wrap as shown in Figure 1 and 2. Duct construction shall vary up to 1200mm x 1000mm in size and be in accordance with AS Pressure Class Duct hanger rod size, hanger spacing, support, duct BMT, stiffeners and jointing shall be in accordance with AS as appropriate for Pressure Class 1000 and do not require fire protection. Include an access hatch detail as shown in Figure 8 and 9 based on reference to Test report The proposed construction is summarised in Table 1 and Figures 1 to 8. Short Form Report FCO of 12

5 Table 1 Construction Specification Item Number Description 1 75 x 75 x 2 mm steel retaining angle. 2 8 g x 100 mm plasterboard/wood 200 mm centres. 3 8 g x 200 mm centres. 4 5mm ø x 10mm length blind steel 200 mm centres. 5 Fire grade plasterboard four layers 150mm wide, 16mm thick to form a collar around the duct. All gaps sealed with 3M fire barrier sealant. 6 3M Fire Barrier Sealant, 15 mm deep. 7 3M Fire Barrier Sealant, 10 mm fillet. 8 Un foiled contents of 3M Fire Barrier 615+ Duct Wrap. 9 Plasterboard wall tested or assessed for required fire resistance of duct. 10 Steel duct constructed to AS 4254, pressure class 1000 pa or higher. 11 3M Fire Barrier 615+ Duct Wrap. The first layer continuously applied to the whole duct. The second layer applied for the zone within 2m duct length of the wall. 12 3M Fire Barrier 615+ Duct Wrap collar 150mm wide. Required for 120 minute applications only. 13 Opening cut in ductwork to suit the appropriate size of the access door. 14 Pre fabricated, access door. 15 Duct mate ultimate 3M 615+ extension bolt kit mm thick fire grade plasterboard hatch cover. 17 3M Intumescent Strip 20 mm minimum wide. Bonded to the perimeter of item Duct wrap steel cover plate. 19 3M 425 Foil Tape Figure 1 General arrangement of 3M Fire Barrier 615+ Duct Wrap for 90 minute applications Short Form Report FCO of 12

6 Figure 2 General arrangement of 3M Fire Barrier 615+ Duct Wrap for 120 minute applications Figure 3 Fire stopping treatment at wall Short Form Report FCO of 12

7 Figure 4 Size of gap at perimeter of duct 19 Figure 5 Requirements for taping of wrap joins for single layer systems 19 Figure 6 Requirements for taping of wrap joins for double layer systems Short Form Report FCO of 12

8 Figure 7 Installation of duct hatch system for one layer of wrap on duct Short Form Report FCO of 12

9 Figure 8 Installation of duct hatch system for two layers of wrap on duct Short Form Report FCO of 12

10 4 Referenced Standards Standards: AS Methods for fire tests on building materials, components and structures Part 4: Fire resistance tests of elements of building construction, Section 9 as appropriate for Duct protection for inside exposure. 5 Conclusion On the basis of the analysis presented in the referenced report, it is the opinion of this Testing Authority that the tested prototypes described in Section 2 when varied as described in Section 3 will achieve the performance below when submitted to a test in accordance with the test methods referenced in Section 4. Construction Specification FRL Inside Exposure Table 1 and Figure 1 and 3 to 8 90/90/90 Table 1 and Figures 2 to 8 120/120/120 6 Direct Field of Application of Results The results of this assessment apply to ducts exposed to fire from inside the duct only. 7 Requirements It is required that the supporting construction be load bearing or non load bearing and tested or assessed to achieve the required FRL in accordance with AS Any variations with respect to size, constructional details are other than those identified in this report, may invalidate the conclusions drawn in this report. 8 Term of Validity This report will lapse on 31 st December Should you wish us to re examine this report with a view to the possible extension of its term of validity, would you please apply to us three to four months before the date of expiry. This Division reserves the right at any time to amend or withdraw this assessment in the light of new knowledge. Short Form Report FCO of 12

11 9 Limitations The conclusions of the referenced assessment report may be used to directly assess the fire resistance performance under such conditions, but it should be recognised that a single test method will not provide a full assessment of the fire hazard under all fire conditions. Because of the nature of fire resistance testing, and the consequent difficulty in quantifying the uncertainty of measurement, it is not possible to provide a stated degree of accuracy. The inherent variability in test procedures, materials and methods of construction, and installation may lead to variations in performance between elements of similar construction. The referenced assessment report does not provide an endorsement by CSIRO of the actual products supplied to industry. The referenced assessment can therefore only relate only to the actual prototype test specimens, testing conditions and methodology described in the supporting data, and does not imply any performance abilities of construction of subsequent manufacture. The referenced assessment is based on information and experience available at the time of preparation. The published procedures for the conduct of tests and the assessment of test results are the subject of constant review and improvement and it is recommended that this report is reviewed on or, before, the stated expiry date. The information contained in the referenced assessment report shall not be used for the assessment of variations other than those stated in the conclusions above. The referenced assessment is valid provided no modifications are made to the systems detailed in this report. All details of construction should be consistent with the requirements stated in the relevant test reports and all referenced documents. Short Form Report FCO of 12

12 CONTACT US t e enquiries@csiro.au w YOUR CSIRO Australia is founding its future in science and innovation. Its national science agency, CSIRO, is a powerhouse of ideas, technologies and skills for building prosperity, growth, health and sustainability. It serves governments, industries, business and communities across the nation. FOR FURTHER INFORMATION Infrastructure Technologies Keith Nicholls Senior Consultant Fire Testing and Assessments t e keith.nicholls@csiro.au w testing/ Infrastructure Technologies Brett Roddy Manager, Fire Testing and Assessments t e brett.roddy@csiro.au w testing/ Short Form Report FCO of 12