1、BRITISH STANDARD BS ISO 8581:1994 Implementation of ISO 8581:1994 Photography Electronic flash equipment Connectors to synchro-cord ICS 37.040.10BSISO8581:1994 This British Standard, having been prepared under the directionof the Consumer Products and Services Sector Board, was published under theau
2、thority of the Standards Board and comes into effect on 15October1995 BSI 02-2000 The following BSI references relate to the work on this standard: Committee reference CPW/42 Draft for comment 92/43338 DC ISBN 0 580 24845 3 Committees responsible for this British Standard The preparation of this Bri
3、tish Standard was entrusted to Technical Committee CPW/42, Photography International coordination, upon which the following bodies were represented: British Film Institute British Institute of Professional Photography British Photographic Association Sira Limited The following bodies were also repre
4、sented in the drafting of the standard, through subcommittees and panels: Chartered Institution of Building Services Engineers Lighting Industry Federation Ltd. Amendments issued since publication Amd. No. Date CommentsBSISO8581:1994 BSI 02-2000 i Contents Page Committees responsible Inside front co
5、ver National foreword ii Foreword iii Text of ISO 8581 1BSISO8581:1994 ii BSI 02-2000 National foreword This British Standard reproduces verbatim ISO8581:1994 and implements it as the UK national standard. This British Standard is published under the direction of the Consumer Products and Services S
6、ector Board whose Technical Committee CPW/42 has the responsibility to: aid enquirers to understand the text; present to the responsible international committee any enquiries on interpretation, or proposals for change, and keep UK interests informed; monitor related international and European develo
7、pments and promulgate them in the UK. NOTEInternational and European Standards, as well as overseas standards, are available from Customer Services, BSI,389 Chiswick High Road, LondonW44AL. A British Standard does not purport to include all the necessary provisions of a contract. Users of British St
8、andards are responsible for their correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. Summary of pages This document comprises a front cover, an inside front cover, pages i and ii, theISO title page, pages ii to iv, pages 1 to 7 and a ba
9、ck cover. This standard has been updated (see copyright date) and may have had amendments incorporated. This will be indicated in the amendment table on the inside front cover.ISO8581:1994(E) ii BSI 02-2000 Contents Page Foreword iii Introduction 1 1 Scope 1 2 Normative references 1 3 Types and dime
10、nsions 1 Figure 1 “Type 1” plug and socket 2 Figure 2 “Type 2” plug and socket 3 Figure 3 “Type 3” plug and socket 5 Figure 4 “Type 4” plug and socket 6 Table 1 Dimensions for “type 1” plug and socket 3 Table 2 Dimensions for “type 2” plug and socket 4 Table 3 Dimensions for “type 3” plug and socket
11、 6 Table 4 Dimensions for “type 4” plug and socket 7ISO8581:1994(E) BSI 02-2000 iii Foreword ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing International Standards is normally carried out thro
12、ugh 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 organizations, governmental and non-governmental, in liaison with ISO, also take part in the work. ISO collabor
13、ates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization. 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
14、 least75% of the member bodies casting a vote. International Standard ISO8581 was prepared by Technical Committee ISO/TC42, Photography.iv blankISO8581:1994(E) BSI 02-2000 1 Introduction The rapid increase in demand for electronic flash equipment has resulted in the enormous production of an unlimit
15、ed number of types of electronic photoflash equipment, and the lack of International Standards for connectors between the flash unit and the synchro-cord to camera shutters has resulted in the proliferation of new designs of connectors which has continued to grow at an alarming rate. In 1973, ISO/TC
16、42 decided to develop a standard for the above object. The aim of this International Standard is to minimize the faulty connection of plugs by amateur photographers and also to reduce the number of types of connectors used for electronic flash equipment. 1 Scope This International Standard specifies
17、 the electrical connectors (plugs and sockets) to be used for electronic photoflash equipment. It gives a limited number of connectors and the dimensions to be used for the connection between flash unit and flash synchro-cords. It does not cover those connectors which are intended for the connection
18、 of a mains supply to the flash equipment (seeIEC83 and IEC320), nor those intended for the connection of hand-held cameras to the flash equipment synchro-cord (seeISO519). 2 Normative references The following standards contain provisions which, through reference in this text, constitute provisions
19、of this International Standard. At the time of publication, the editions indicated were valid. All standards are subject to revision, and parties to agreements based on this International Standard are encouraged to investigate the possibility of applying the most recent editions of the standards ind
20、icated below. Members of IEC and ISO maintain registers of currently valid International Standards. ISO 519:1992, Photography Hand-held cameras Flash-connector dimensions. IEC 83:1975, Plugs and socket-outlets for domestic and similar general use Standards. IEC 320:1981, Appliance couplers for house
21、hold and similar general purposes. 3 Types and dimensions The limited types and dimensions of the connectors are given inFigure 1 toFigure 4 andTable 1 toTable 4. The +, N and symbols designate electrical polarity.ISO8581:1994(E) 2 BSI 02-2000 Figure 1 “Type 1” plug and socketISO8581:1994(E) BSI 02-
22、2000 3 Table 1 Dimensions for “type 1” plug and socket Plug Socket Dimension mm Dimension mm A 2,5 A 2,7 B 1,0 B 1,2 C 12,5 C 3,5 D 4,0 D 4,2 E 8,0 E 8,0 F 5,5 F 3,5 G 1,25 G 1,75 H 0,75 Figure 2 “Type 2” plug and socket 00,05 +0,1 0 00,05 +0,1 0 00,1 +0,2 0 00,1 00,1 ISO8581:1994(E) 4 BSI 02-2000 T
23、able 2 Dimensions for “type 2” plug and socket Plug Socket Dimension mm Dimension mm A 3,0 A 3,1 B 2,5 0,03 B 2,55 0,05 C 3,4 C 3,4 D 0,6 D 0,6 E 2,5 E 3,0 min. F 7,6 0,2 F 6,0 G 2,15 0,05 H 1,74 I 0,83 0,025 J 0,9 K 1,4 L 1,0 M 0,4 N 0,2 O 1,0 P 0,4 Q 0,2 +0,015 0,035 +0,1 0 +0,1 0 0 0,1 +0,1 0 0 0
24、,05ISO8581:1994(E) BSI 02-2000 5 Figure 3 “Type 3” plug and socketISO8581:1994(E) 6 BSI 02-2000 Table 3 Dimensions for “type 3” plug and socket Plug Socket Dimension mm Dimension mm A 6,35 A 6,5 B 4,5 B 5,0 C 14,0 C 17,0 D 11,0 D E 1,5 E 1,0 F 2,0 0,1 F 12,5 G 6,25 G 6,25 H 2,0 Figure 4 “Type 4” plu
25、g and socket 0 0,15 0 0,1 0 0,15 0 0,1 0 0,2 0 0,1 0 0,1 0 0,15 0 0,15 +0,1 0ISO8581:1994(E) BSI 02-2000 7 Table 4 Dimensions for “type 4” plug and socket Plug Socket Dimension mm Dimension mm A 2,3 0,3 A a 9,1 0,2 B 2,5 0,5 B 2,55 C 1,8 0,1 D 2,3 0,1 E 10,3 0,3 F 6,5 0,1 G 3,1 0,1 H 0,7 0,1 I 0,4 0
26、,1 J 2,3 0,1 K 0,7 0,3 L 45 M 45 N 0,1 a This dimension applies when the plug is inserted into the socket. +0,05 0BS ISO 8581:1994 BSI 389 Chiswick High Road London W4 4AL BSIBritishStandardsInstitution BSI is the independent national body responsible for preparing BritishStandards. It presents the
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