1、raising standards worldwideNO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBSI Standards PublicationBS ISO 3434:2012Ships and marine technology Heated glass panes forships rectangular windowsBS ISO 3434:2012 BRITISH STANDARDNational forewordThis British Standard is the UK imple
2、mentation of ISO 3434:2012. It supersedes BS ISO 3434:1992 which is withdrawn.The UK participation in its preparation was entrusted to Technical Committee SME/32/-/8, Ships 47.020.90 Compliance with a British Standard cannot confer immunity from legal obligations.This British Standard was published
3、under the authority of the Standards Policy and Strategy Committee on 30 November 2012.Amendments issued since publicationDate T e x t a f f e c t e dBS ISO 3434:2012 ISO 2012Ships and marine technology Heated glass panes for ships rectangular windowsNavires et technologie maritime Vitrages chauffan
4、ts pour fentres rectangulaires de naviresINTERNATIONAL STANDARDISO 3434Third edition2012-09-01Reference numberISO 3434:2012(E)BS ISO 3434:2012ISO 3434:2012(E)ii ISO 2012 All rights reservedCOPYRIGHT PROTECTED DOCUMENT ISO 2012All rights reserved. Unless otherwise specified, no part of this publicati
5、on may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from either ISO at the address below or ISOs member body in the country of the requester.ISO copyright officeCase postale 56 CH-1211 Geneva 20Te
6、l. + 41 22 749 01 11Fax + 41 22 749 09 47E-mail copyrightiso.orgWeb www.iso.orgPublished in SwitzerlandBS ISO 3434:2012ISO 3434:2012(E) ISO 2012 All rights reserved iiiContents PageForeword iv1 Scope 12 Normative references . 13 Optical requirements 13.1 Requirements . 13.2 Visibility 23.3 Discolora
7、tion 24 Construction of glass pane 24.1 General . 24.2 Composition and materials . 24.3 Protection of edges . 44.4 Dimensions . 44.5 Parallelism . 64.6 Admissible distortion . 65 Heating circuit 65.1 Heat output 65.2 Electrical power supply . 75.3 Electrical connections . 75.4 Overheating protection
8、 76 Tests 86.1 Electrical tests 86.2 Mechanical tests 86.3 Test certification 87 Marking . 88 Designation . 9Annex A (informative) Model for test certificate .10BS ISO 3434:2012ISO 3434:2012(E)ForewordISO (the International Organization for Standardization) is a worldwide federation of national stan
9、dards bodies (ISO member bodies). The work of preparing International Standards is normally carried out through ISO technical committees. Each member body interested in a subject for which a technical committee has been established has the right to be represented on that committee. International org
10、anizations, governmental and non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization.International Standards are drafted in accordance with the rules given
11、in the ISO/IEC Directives, Part 2.The main task of technical committees is to prepare International Standards. Draft International Standards adopted by the technical committees are circulated to the member bodies for voting. Publication as an International Standard requires approval by at least 75 %
12、 of the member bodies casting a vote.Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. ISO shall not be held responsible for identifying any or all such patent rights.ISO 3434 was prepared by Technical Committee ISO/TC 8, Ships and
13、marine technology, Subcommittee SC 8, Ship design.This third edition cancels and replaces the second edition (ISO 3434:1992), which has been technically revised. It also incorporates the Amendment ISO 3434:1992/Amd.1:2004.iv ISO 2012 All rights reservedBS ISO 3434:2012INTERNATIONAL STANDARD ISO 3434
14、:2012(E)Ships and marine technology Heated glass panes for ships rectangular windows1 ScopeThis International Standard specifies construction characteristics, optical qualities and heat current circuit, as well as the tolerances, tests, marking and designation of heated glass panes for ships rectang
15、ular windows of the heated series according to ISO 3903.It includes the conditions to comply with the safety of ships in times of frost and/or snow, particularly during manoeuvres in port.Heated glass panes are used on ships principally for the windows of wheel-houses and bridges, as well as in encl
16、osed locations used for look-out and manoeuvring purposes. This International Standard specifies heated glass panes which are intended for use at temperatures down to -40 C.2 Normative referencesThe following cited documents are indispensable for the application of this document. For dated reference
17、s, the edition cited applies only. For undated references, the latest edition of the referenced document (including any amendments) applies.ISO 554:1976, Standard atmospheres for conditioning and/or testing SpecificationsISO 614, Shipbuilding and marine technology Toughened safety glass panes for re
18、ctangular windows and side scuttles Punch method of non-destructive strength testingISO 3903, Ships and marine technology Ships ordinary rectangular windowsISO 5779:1987, Shipbuilding Ordinary rectangular windows PositioningISO 21005, Ships and marine technology Thermally toughened safety-glass pane
19、s for windows and side scuttlesIEC 60092-101, Electrical installations in ships Part 101: Definitions and general requirementsIEC 60529:2001,Degrees of protection provided by enclosures (IP Code)3 Optical requirements3.1 RequirementsWhen heated glass panes are installed in windows, they shall comply
20、 with the requirements in 3.2 and 3.3.All the optical requirements shall apply independent of the kind of temperature control (for example, a thermostat).However, these optical qualities are not required at the periphery of the glass pane within a distance of 50 mm width, see Figure 1. ISO 2012 All
21、rights reserved 1BS ISO 3434:2012ISO 3434:2012(E)Dimensions in millimetresKey1 edge cover, variable width2 edge zone3 main clear vision area4 pane size (w/h)Figure 1 Main clear vision area3.2 VisibilityHeated glass panes shall ensure perfect visibility in all weather, avoiding the formation of mist
22、or frost, in relation to the heat output, see Table 3. In addition, they shall ensure maximum efficiency of the windscreen wipers when operating in conditions of frost and/or snow. They shall not cause any significant reduction in the ability of a person to see with the naked eye or binoculars when
23、a distant object is observed at normal line of vision through the glass. National and international regulations must be considered.Tinted glass shall not be used.3.3 DiscolorationHeated glass panes shall not cause any deterioration in perception of colour, or perceivable discoloration of objects, in
24、 particular colours of signal lights and lights on buoys.4 Construction of glass pane4.1 GeneralA complete mountable heated glass pane that meets the requirements of this International Standard is an assembly consisting of laminated glass panes and a durable mounted device for the electrical connect
25、ion.4.2 Composition and materialsSamples of the composition of the laminated glass panes are shown in Table 1 and Figure 2.2 ISO 2012 All rights reservedBS ISO 3434:2012ISO 3434:2012(E)Table 1 Components of heated glass panesItem reference(see Figure 1)Term1 carrier pane2 cover pane3 heating element
26、4 interlayera) Type A, with two laminated glass panesb) Type B, with three laminated glass panesItem references are given in Table 1.Figure 2 Samples of cross-sections of heated glass panes (not to scale)4.2.1 Carrier paneThe carrier pane shall be clear single thermally toughened safety glass accord
27、ing to ISO 21005 or equivalent.The configuration of the window in the ship is specified in ISO 5779:1987. ISO 2012 All rights reserved 3BS ISO 3434:2012ISO 3434:2012(E)4.2.2 Cover paneThe cover pane protects the heating element. The material shall be a clear single safety glass pane, toughened or se
28、mi-toughened.4.2.3 Heater elementThe heating element consists of a thin wire, a conductive film or a conductive coating ensuring the requirements of 3.3.4.2.4 InterlayerThe interlayer consists of a thin polymer material, e.g. polyvinyl butyral (PVB) foil.4.3 Protection of edgesThe glass panes shall
29、have edge sealing all around to avoid any penetration of humidity or any other form of chemical attack between the layers of the lamination, and to protect the edges against impact as well as to ensure durable electrical insulation. Materials such as silicone, rubbers, polysulfides or similar shall
30、be used, compatible with the plastic interlayers of the lamination.This edge protection shall be bonded to the edge not thicker than 3 mm (see Figure 3).Dimensions in millimetresFigure 3 Protection of edges4.4 Dimensions4.4.1 Dimensioning and glass thicknessThe main dimensions of a heated glass pane
31、 shall be produced as shown in Figure 4. The dimension t1in Figure 4 is in accordance with ISO 21005. Carrier panes shall have thickness t1. Glass panes in accordance with or equivalent to ISO 21005 shall be used.NOTE 1 Thickness t1is the designating thickness for heated glass panes.4 ISO 2012 All r
32、ights reservedBS ISO 3434:2012ISO 3434:2012(E)NOTE 2 The nominal sizes of windows are the dimensions of the clear parts allowing the passage of light, including the 50 mm edge zone shown in Figure 1. The sizes are given in accordance with ISO 3903:1993, Table 2. Other sizes that are not listed may b
33、e agreed on between the parties concerned.t1nominal thickness of carrier glass panet2nominal thickness of cover glass paneFigure 4 Dimensions of heated glass pane4.4.2 Tolerances on thicknessesTolerances on thicknesses of heated glass panes shall be as given in Table 2.Table 2 Tolerances on thicknes
34、sesDimensions in millimetresThickness ToleranceTotal, t31,5carrier pane, t1810120,3in accordance with ISO 2100515 0,519 125 1Cover pane, t20,3 ISO 2012 All rights reserved 5BS ISO 3434:2012ISO 3434:2012(E)4.5 ParallelismThe tolerance on parallelism between the two surfaces of the glass pane shall no
35、t exceed 1 mm/1 000 mm, see Figure 5.Dimensions in millimetresFigure 5 Parallelism4.6 Admissible distortionThe tolerance on flatness shall not exceed 3 mm/1 000 mm, see Figure 6.Dimensions in millimetresFigure 6 Flatness5 Heating circuit5.1 Heat outputThe heat output given in Table 3 is specified fo
36、r heated panes used for de-misting and de-frosting of the glass at a medium wind velocity and a standard atmosphere 20 C and 65 % relative humidity as specified in ISO 554:1976, outside the polar regions.Higher heat output is required for navigation in polar regions; in such a case the manufacturers
37、 of heated glass panes shall be consultedTable 3 Heat outputHeat outputW/dm2Outdoor temperaturesmin. max.7121791521down to -12 Cdown to -28 Cdown to -40 C6 ISO 2012 All rights reservedBS ISO 3434:2012ISO 3434:2012(E)5.2 Electrical power supplyThe power supply circuit of the heating for the glass pan
38、e shall be aligned with the supply voltage for continuous power supply customary on board of ships, as fixed in IEC 60092-101. The voltage in d.c. or a.c. may be used. For power supply identification systems, see Table 4.Table 4 Electrical power supply identification systemSupplyVoltageVFrequencyHzI
39、dentification no.d.c.24 01110 02220 03a.c. single phase11550 1160 1223050 1360 14a.c. three phase11550 3160 3223050 3360 34230/40050 3560 3644050 3760 385.3 Electrical connectionsMoisture-proofed connection boxes, with a degree of protection of at least IP22 in accordance with IEC 60529, shall be in
40、stalled between the heating circuit and the feed cable. These boxes shall be bonded to the inner side of the heated glass pane.All necessary precautions concerning insulation and earthing of the installation to protect against electrical shock shall be taken. For requirements, see IEC 60092-101.If i
41、n special cases the connection box has to be installed on the glassframe or main frame of the windows, this shall be especially agreed between supplier and customer. In such cases, the glass pane will need to be equipped with suitable cables.5.4 Overheating protectionHeated glass panes shall be equi
42、pped with temperature-limitation devices (regulators) to ensure the heated glass pane does not overheat. Electric power to the heated glass pane must be switched off to ensure the temperature of the glass pane surface does not exceed 50 C. Two types of such a regulator are specified: Single regulati
43、on (S): the regulator (e.g. a temperature sensor) is mounted directly on the glass pane (interior-side). It affects only the relevant glass pane and is part of original equipment. Group regulation (G): a separate regulation device not mounted directly at the window to which several glass panes are c
44、onnected appropriately. Relevant information on type and number of these regulation devices is necessary at the time of ordering. ISO 2012 All rights reserved 7BS ISO 3434:2012ISO 3434:2012(E)6 TestsTests shall be carried out by the heated glass manufacturer.6.1 Electrical testsA voltage test shall
45、be carried out on each finished heated glass pane. The test voltage shall be an a.c. voltage of 1 000 V plus twice the rated voltage, with a minimum of 1 500 V. The test frequency shall be 25 Hz to 100 Hz.The test duration shall be 1 min, and shall cover the electrical circuit from the connection fo
46、r the heating area to the edge of the glass pane all around.6.2 Mechanical testsThe carrier pane of the heated glass pane shall be tested in accordance with ISO 614.6.3 Test certificationThe tests in 6.1 and 6.2 should be performed in a laboratory that complies with ISO/IEC 17025 and, where appropri
47、ate, a certificate issued. A model test certificate is given in Annex A.7 MarkingHeated glass panes which meet the requirements of this International Standard shall be marked with a single equilateral triangle in accordance with ISO 614. Examples are given in Figure 7 and Figure 8.In addition, the f
48、ollowing indications shall be added:a) within the triangle: the total nominal thickness t3of the heated glass pane, in millimetres;b) above the triangle: the heat output per square decimetre;c) the left side: the voltage and the identification number;d) the right side: type of glass pane, Type A or
49、Type B.The marking shall be readable form the interior and shall be situated in a bottom corner of the glass pane.EXAMPLE 1 A glass pane of Type A (two laminated panes) with a total thickness t3= 15 mm, a heat output of 7 W/dm2to 9 W/dm2, and an electrical supply of 230 V, 50 Hz, single-phase (identification number 13) shall be marked in accordance with Figure 7.Figure 7 Marking glass pane Type AEXAMPLE 2 A glass pane of Type B (three laminated panes) with a total thickness t3=
