1、BSI Standards PublicationBS EN 16712-3:2015Portable equipment forprojecting extinguishingagents supplied by fire fightingpumps Portable foamequipmentPart 3: Low and medium expansion hand-held foam branchpipes PN 16BS EN 16712-3:2015 BRITISH STANDARDNational forewordThis British Standard is the UK im
2、plementation of EN 16712-3:2015. The UK participation in its preparation was entrusted to TechnicalCommittee FSH/17, Fire brigade equipment.A list of organizations represented on this committee can be obtained on request to its secretary.This publication does not purport to include all the necessary
3、 provisions of a contract. Users are responsible for its correct application. The British Standards Institution 2015.Published by BSI Standards Limited 2015ISBN 978 0 580 85149 0 ICS 13.220.10 Compliance with a British Standard cannot confer immunity from legal obligations.This British Standard was
4、published under the authority of the Standards Policy and Strategy Committee on 30 September 2015.Amendments/corrigenda issued since publicationDate T e x t a f f e c t e dBS EN 16712-3:2015EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 16712-3 September 2015 ICS 13.220.10 English Version Port
5、able equipment for projecting extinguishing agents supplied by fire fighting pumps - Portable foam equipment - Part 3: Low and medium expansion hand-held foam branchpipes PN 16 Equipement portable de projection dagents dextinction aliment par des pompes usage incendie - Equipements mousse portables
6、- Partie 3 : Lances mousse main PN 16 bas et moyen foisonnement Tragbare Gerte zum Ausbringen von Lschmitteln, die mit Feuerlschpumpen gefrdert werden - Tragbare Schaumgerte - Teil 3: Schwer-und Mittelschaumrohre PN 16 This European Standard was approved by CEN on 1 August 2015. CEN members are boun
7、d to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CE
8、N-CENELEC Management Centre or to any CEN member. This European Standard exists in three official versions (English, French, German). A version in any other language made by translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management Centre h
9、as the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, L
10、uxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey andUnited Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Bru
11、ssels 2015 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 16712-3:2015 EBS EN 16712-3:2015EN 16712-3:2015 (E) 2 Contents Page European foreword . 4 Introduction 5 1 Scope 6 2 Terms and definitions . 6 3 Types 7 4 Designation 8 5 R
12、equirements and verification 8 5.1 Mechanical characteristics 8 5.1.1 Dimensions and mass 8 5.1.2 Operating and handling elements . 9 5.2 Materials . 9 5.3 Hydraulic characteristics 10 5.3.1 General . 10 5.3.2 Sensitivity to heat . 10 5.3.3 Sensitivity to frost 10 5.3.4 Effective throw 10 5.3.5 Leak
13、-tightness . 12 5.3.6 Hydrodynamic behaviour . 12 6 Information for use . 13 6.1 Instruction and maintenance handbook . 13 6.1.1 General . 13 6.1.2 Instruction handbook . 13 6.1.3 Maintenance handbook . 13 6.2 Marking 13 6.3 Colour coding . 13 Annex A (informative) Acceptance test on delivery . 15 A
14、nnex B (normative) Datasheet for hand-held foam branchpipes . 16 B.1 General . 16 B.2 General data . 16 B.3 Requirements 16 B.4 Optional extra data (no requirement) 16 B.5 Data certified by*: 16 Annex C (informative) Example of completed datasheet for hand-held foam branchpipes 17 C.1 General . 17 C
15、.2 General data . 17 C.3 Requirements 17 C.4 Optional extra data (no requirement) 17 BS EN 16712-3:2015EN 16712-3:2015 (E) 3 C.5 Data certified by*: . 17 Bibliography . 18 BS EN 16712-3:2015EN 16712-3:2015 (E) 4 European foreword This document (EN 16712-3:2015) has been prepared by Technical Committ
16、ee CEN/TC 192 “Fire and Rescue Service Equipment”, the secretariat of which is held by BSI. This European Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by March 2016, and conflicting national standards shall be
17、withdrawn at the latest by March 2016. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN and/or CENELEC shall not be held responsible for identifying any or all such patent rights. EN 16712 consists of the following parts, under
18、 the general title “Portable equipment for projecting extinguishing agents supplied by fire fighting pumps Portable foam equipment”: Part 1: Inductors PN 16; Part 2: Pick-up tubes; Part 3: Low and medium expansion hand-held foam branchpipes PN 16; Part 4: High expansion foam generators PN 16. Accord
19、ing to the CEN-CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany,
20、Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. BS EN 16712-3:2015EN 16712-3:2015 (E) 5 Introduction Hand-held foam branchpipes are used to e
21、xpand foam water solution by the addition of air and to project the foam onto a fire or fire risk. BS EN 16712-3:2015EN 16712-3:2015 (E) 6 1 Scope 1.1 This European Standard applies to hand-held foam branchpipes, and self-inducting foam branchpipes, for low and medium expansion foam used by fire and
22、 rescue services and defines their specification and test procedures. NOTE In this European Standard, the term “branchpipe” also refers to “hand-held foam branchpipes”. 1.2 This European Standard is not applicable to hand-held foam branchpipes which have been manufactured before its date of publicat
23、ion as European Standard. 2 Terms and definitions For the purposes of this document, the following terms and definitions apply. 2.1 handheld foam branchpipe hand-operated device in which the water foam solution is mixed with air to produce foam that is then expelled in the form of a jet Note 1 to en
24、try: The branchpipe may be equipped with a pressure gauge. 2.2 combination handheld foam branchpipe handheld foam branchpipe capable of producing either low expansion foam or medium expansion foam Note 1 to entry: The branchpipe may be equipped with a pressure gauge. 2.3 pressures Note 1 to entry: P
25、ressures are expressed in bar. Note 2 to entry: 1 bar = 0,1 MPa (105Pa). 2.3.1 working pressure p1pressure measured at the inlet of the branchpipe 2.3.2 nominal pressure pNmaximum working pressure measured at the inlet of the branchpipe 2.3.3 reference pressure pRpressure measured at the inlet of th
26、e branchpipe used for performance tests 2.3.4 test pressure ptstatic pressure used for leakage tests BS EN 16712-3:2015EN 16712-3:2015 (E) 7 2.4 expansion expansion ratio ratio of the volume of foam to the volume of the water foam solution from which it was made 2.4.1 low expansion foam foam which h
27、as an expansion ratio less than 20 SOURCE: EN 1568-3:2008, 3.3 2.4.2 medium expansion foam foam which has an expansion ratio greater than or equal to 20 but less than 200 SOURCE: EN 1568-3:2008, 3.4 2.5 self-inducting foam branchpipe foam branchpipe and an induction system integrated into one device
28、 3 Types 3.1 Branchpipes are classified according to Table 1 based on foam expansion, water foam solution flow at working pressure p1(in litres per minute). 3.2 Branchpipes are divided in two groups (low and medium expansion). The group they belong to shall be identified in the standard description
29、and shall be marked according to 6.2. Table 1 Branchpipe types Type Foam expansion Reference pressure Water foam solution flow Permitted deviation bar l/min % S 1 Low expansion 4 to 400 35 Verification The torques shall be measured in accordance with Table 3. This test shall be conducted with water
30、only. 5.2 Materials The materials used shall be selected so that all the requirements in Clause 5 are met, subject to the tests defined in this European Standard. The resistance to foam concentrate or additive shall be agreed between the supplier and the user. BS EN 16712-3:2015EN 16712-3:2015 (E) 1
31、0 5.3 Hydraulic characteristics 5.3.1 General Unless otherwise specified, tests shall be carried out at the reference pressure pR, in the following order: dimensions and mass according to 5.1.1, verification of operating and handling elements according to 5.1.2, heat test according to 5.3.2, frost t
32、est according to 5.3.3, verification of the effective throw according to 5.3.4, leak-tightness according to 5.3.5 and hydrodynamic behaviour according to 5.3.6. NOTE Guidance for acceptance tests on delivery is given in Annex A. The following pressures shall be used for the determination of the hydr
33、aulic characteristics. reference pressure: pR= (5 0,1) bar; nominal pressure: pN= 16 bar; test pressure: pt= 25,5 bar burst pressure: pB= 60 bar. 5.3.2 Sensitivity to heat Branchpipes shall resist the heat test defined below. Verification It shall be possible to use the foam branchpipe without restr
34、icting its function after it has been stored for 24 h at (55 2) C. This test shall be conducted with water only. Hand protection should be used when carrying out this test. 5.3.3 Sensitivity to frost Branchpipes shall resist the frost test defined below. Verification The foam branchpipe shall be dis
35、connected following operation for 1 min at the reference pressure pR. It shall then be drained for 1 min and stored at a temperature of (-15 2) C for 30 min. Following this, it shall still be possible to move the operating elements manually. Hand protection should be used when carrying out this test
36、. 5.3.4 Effective throw The branchpipe shall achieve a minimum effective throw deffas given in Table 4 and shown in Figure 1, when set at the reference pressure. Combination hand-held foam branchpipes shall meet both relevant requirements for low and medium expansion as specified in Table 4. BS EN 1
37、6712-3:2015EN 16712-3:2015 (E) 11 Table 4 Performance of the foam branchpipe Type Water Multipurpose synthetic foam concentrate Effective throw (at pR) Effective throw Foam expansion ratio m m S 1 10 9 5 S 2 15 12 5 S 4 25 20 5 S 8 30 25 5 M 0,5 3 40 M 1 4 40 M 2 7 40 M 4 8 40 M 8 12 40 Verification
38、 The effective throw shall be measured under the following conditions, in accordance with Figure 1: inclination: (30 2); pressure at the inlet of the branchpipe: Rp = 5 bar 0,1 bar; maximum wind speed: 1 m/s; effective throw (in metre): furthest droplets - 10 % = effd = 0,9 maxd . The measurement sh
39、all be carried out when the system is stabilized. The effective throw shall be given in the instruction handbook. BS EN 16712-3:2015EN 16712-3:2015 (E) 12 Dimensions in millimetres Key 1 effective throw (deff) 2 maximum throw (dmax) Figure 1 Effective throw 5.3.5 Leak-tightness The foam branchpipe s
40、hall be constructed to ensure it does not leak during normal operation. Verification The closed branchpipe shall show no leakage for 1 min at the test pressure pt= 25,5 bar. NOTE No leakage means no visible weeping or drop formation. This test shall be conducted with water only. 5.3.6 Hydrodynamic b
41、ehaviour The foam branchpipe shall be constructed to ensure it resists the effects of water hammer. Verification The foam branchpipe shall be mounted in a closed position on a device capable of exerting a hydrostatic pressure of 60 bar (burst pressure pB). All air shall be bled out of the system. Th
42、e pressure shall be increased by 3 bar increments and held for 30 s at each pressure up to pB. This maximum pressure shall be held for 1 min without rupturing the branchpipe. This test shall be conducted with water only. If the branchpipe is equipped with a pressure gauge, the test shall be carried
43、out without it. BS EN 16712-3:2015EN 16712-3:2015 (E) 13 6 Information for use 6.1 Instruction and maintenance handbook 6.1.1 General Each branchpipe shall be delivered with an instruction and maintenance handbook. This handbook should be made available either on paper and/or in a downloadable self-
44、contained digital format (e.g. CD-ROM, DVD, USB stick, website, etc.). 6.1.2 Instruction handbook The instruction handbook shall contain at least the following information: name and/or logo and contact details of manufacturer; data sheet according to Annex B (see also an example of a complete data s
45、heet in Annex C); product warnings; general information for use. 6.1.3 Maintenance handbook The maintenance handbook shall at least contain the following: maintenance instructions; sectional or exploded diagram; spare parts list cross-referenced to diagram. 6.2 Marking Branchpipes shall be permanent
46、ly marked with at least the following information: identification of the manufacturer; serial or batch number and year of manufacture; reference to this European Standard; type. 6.3 Colour coding The water foam solution flow shall be identifiable by a coloured band, with a minimum width of 15 mm, as
47、 described in Table 5. BS EN 16712-3:2015EN 16712-3:2015 (E) 14 Table 5 Colour coding Nominal flow Colour l/min 50 No requirement 100 No requirement 200 Yellow 400 Red 800 Blue It is allowed to add complementary information e.g. flowrate, pressure, corporate logo, etc. on the coloured band. The prin
48、ted area shall not exceed 50 % of the surface area of the band (see an example in Figure 2). Figure 2 Example BS EN 16712-3:2015EN 16712-3:2015 (E) 15 Annex A (informative) Acceptance test on delivery Acceptance tests based on the safety and performance requirements of this European Standard may be
49、undertaken on delivery by the customer, by an independent or national testing organization or by any other third party of the customers choice and the results of the tests recorded. The inspection may include examination of all of the test results and the conformity documentation, confirmation that the branchpipe specification has been met by visual and functional inspection or test, confirmation that the required branchpipe documentation, as specified in this European S
