1、BSI Standards PublicationBS EN 2591-315:2015Aerospace series Elementsof electrical and opticalconnection Test methodsPart 315: Fluid resistanceBS EN 2591-315:2015 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of EN 2591-315:2015.It supersedes BS EN 2591-316:1998 whi
2、ch is withdrawn.The UK participation in its preparation was entrusted to TechnicalCommittee ACE/6, Aerospace avionic electrical and fibre optictechnology.A list of organizations represented on this committee can beobtained on request to its secretary.This publication does not purport to include all
3、the necessaryprovisions of a contract. Users are responsible for its correctapplication. The British Standards Institution 2015.Published by BSI Standards Limited 2015ISBN 978 0 580 89591 3ICS 49.060; 49.090Compliance with a British Standard cannot confer immunity fromlegal obligations.This British
4、Standard was published under the authority of theStandards Policy and Strategy Committee on 30 November 2015.Amendments/corrigenda issued since publicationDate T e x t a f f e c t e dBS EN 2591-315:2015EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 2591-315 November 2015 ICS 49.060; 49.090 Sup
5、ersedes EN 2591-315:1998English Version Aerospace series - Elements of electrical and optical connection - Test methods - Part 315: Fluid resistance Srie arospatiale - Organes de connexion lectrique et optique - Mthodes dessais - Partie 315 : Rsistance aux fluides Luft- und Raumfahrt - Elektrische u
6、nd optische Verbindungselemente - Prfverfahren - Teil 315: Bestndigkeit gegen Flssigkeiten This European Standard was approved by CEN on 8 June 2015. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status
7、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 CEN-CENELEC Management Centre or to any CEN member. This European Standard exists in three official versions (English, French, Germa
8、n). 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 has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia,
9、 Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and Unite
10、d Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels 2015 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 2
11、591-315:2015 EBS EN 2591-315:2015EN 2591-315:2015 (E) 2 Contents Page European foreword . 3 1 Scope 4 2 Normative references 4 3 Test fluids . 4 4 Preparation of specimens 5 5 Method 5 6 Final measurements and requirements (if applicable) 8 BS EN 2591-315:2015EN 2591-315:2015 (E) 3 European foreword
12、 This document (EN 2591-315:2015) has been prepared by the Aerospace and Defence Industries Association of Europe - Standardization (ASD-STAN). After enquiries and votes carried out in accordance with the rules of this Association, this European Standard has received the approval of the National Ass
13、ociations and the Official Services of the member countries of ASD, prior to its presentation to CEN. 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 May 2016, and conflicting national standards s
14、hall be withdrawn at the latest by May 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. This document supersedes EN 2591-315:1998
15、. According 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, G
16、ermany, 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 2591-315:2015EN 2591-315:2015 (E) 4 1 Scope This European Standard specifies th
17、e method of determining the fluid resistance of a connector, or cable accessory. It shall be used together with EN 2591-100 and EN 3909. 2 Normative references The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dat
18、ed references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 2591-100, Aerospace series Elements of electrical and optical connection Test methods Part 100: General EN 2591-101, Aerospace series Elements o
19、f electrical and optical connection Test methods Part 101: Visual examination EN 2591-206, Aerospace series Elements of electrical and optical connection Test methods Part 206: Measurement of insulation resistance EN 2591-408, Aerospace series Elements of electrical and optical connection Test metho
20、ds Part 408: Mating and unmating forces EN 2591-409, Aerospace series Elements of electrical and optical connection Test methods Part 409: Contact retention in insert EN 3909, Aerospace series Test fluids for electrical and optical components and sub-assemblies 3 Test fluids Unless otherwise specifi
21、ed in the Product Standard, the samples under test shall be exposed to each of the fluid types listed in Table 1 below. Each fluid shall be selected from the fluid groups in EN 3909. Table 1 Types of test fluid to be used Fluid group number Fluid family name Test fluid type (variant) No of fluids to
22、 be selected per test Remarks (e.g. test temperature) Group 1 Fuels Hydrocarbon 1 - Biofuel 1 - Group 2 Hydraulic Fluids Mineral 1 - Synthetic 1 - Group 3 Oils Mineral 1 - Synthetic 1 - Group 4 Cleaning Fluids Optional 1 - Group 5 De-Icing Fluids Runway 1 - Aircraft 1 - Group 6 Fire Extinguishant -
23、1 - aGroup 7 Cooling Fluid - 1 - aDue to restrictions and applicable by local laws, fire extinguishant shall not be discharged in non-critical situations. BS EN 2591-315:2015EN 2591-315:2015 (E) 5 4 Preparation of specimens 4.1 Unless otherwise specified in the relevant Technical Specification or Pr
24、oduct Standard, specimens shall be prepared as follows to comply with Figure 1 and Figure 2. Each specimen shall be visibly inspected for any imperfections, clean, dry and free from any contaminants that do not comprise the ready for use product. Unwired cavities shall be fitted with contacts and se
25、aling plugs. 20 % of cavities shall be fitted with sealing plugs and for connectors with less than 5 cavities, 1 cavity shall be fitted with a sealing plug. All remaining cavities shall be fitted with wired contacts. Wired contacts shall be fitted with sufficient cable to enable the test sample to b
26、e fully immersed in the test fluid chamber. Care shall be taken to ensure the sample is not subjected to unnecessary load or deformation (e.g. due to tough cables or cable alignment at the rear of the connector or accessory). See Figure 1. 4.2 The following details shall be stated in the Product Sta
27、ndard or Technical Specification: types of fluids (and the substance application method if different to herein); number of specimens (if different from one per test fluid); mounting method, type of cable and definition of specimen wiring; number of cycles; temperature (T1) and duration of the first
28、phase; initial measurements (if applicable); method according to EN 2591-206 and insulation resistance value; temperature (T2) and duration for the third phase; final measurements and requirements (if applicable). 5 Method 5.1 Initial measurements (if applicable in the Product Standard or Technical
29、Specification) Measurements shall be carried out as specified in the Product Standard or Technical Specification. BS EN 2591-315:2015EN 2591-315:2015 (E) 6 5.2 Procedure Each specimen shall be subjected to only one of the specified fluids. A fluid shall be selected from each of the test fluid catego
30、ries in accordance with Table 1 and EN 3909. Key 1 Test fluid 2 Test chamber 3 Sufficient cable (when fitted) to avoid undue strain on the assembly 4 Test sample(s). Mated or unmated in accordance with the Product Standard or Technical Specification requirements Figure 1 Typical test set-up If the t
31、est fluid is a gas at the designated test temperature, the fluid shall be omitted from the test (unless otherwise instructed by the test authority). All test instructions shall include all commensurate health and safety instructions. Key 1 First phase 2 Second phase 3 Third phase Each cycle comprise
32、s three phases. Figure 2 Test cycle BS EN 2591-315:2015EN 2591-315:2015 (E) 7 5.2.1 First phase Fluids: immersion (unless otherwise specified in the Technical Specification or Product Standard). Specimens shall be unmated. The specimens and the fluid shall be brought to the temperature specified (T1
33、). Fully immerse the specimens for (15 + 5) min at the test temperature. The temperature of the fluid shall not exceed the temperature limit of the specimen. The upper rated temperature limit of the specimen shall be considered the maximum test temperature if there is a conflict. NOTE 1 The flash po
34、int and the maximum temperature of the test fluid according to EN 3909 must be observed. NOTE 2 If more viscous substances with the consistency of grease, etc., are instructed in the Technical Specification or Product Standard their application shall be: Grease: application The specimens shall be ma
35、ted unless otherwise specified. The grease shall be spread in a fine film with a brush all over the specimens. The specimens and the grease shall be brought to the specified temperature (T1). The specimens shall then be placed in an oven for (15 + 5) min. 5.2.2 Second phase Fluids The specimens shal
36、l be removed from the fluid and stored at ambient conditions for (7 0,5) h. The specimens shall be allowed to drain, to remove trapped fluid (not wiped dry), in still air during storage. Greases The specimens shall be unmated and stored at ambient conditions for (7 0,5) h. If the grease has become f
37、luid it shall be allowed to drain, to remove trapped fluid (not wiped dry), in still air during storage. 5.2.3 Third phase The specimens shall be mated and placed in a pre-heated oven (the oven air shall be circulated and renewed), the samples shall be subjected to the specified temperature (T2) for
38、 (16 0,5) h, unless otherwise specified. If the third phase temperature is not specified it shall be (65 2) C. NOTE If the test is carried out at a temperature exceeding the flash point, appropriate safety measures shall be taken. BS EN 2591-315:2015EN 2591-315:2015 (E) 8 5.2.4 Number of cycles The
39、number of cycles shall be in accordance with the Technical Specification or Product Standard. If the number of cycles is not specified the cycle shall be repeated four times (five cycles in total). 6 Final measurements and requirements (if applicable) The final measurements shall be conducted at roo
40、m temperature and without cleaning the specimens. All specimens shall be subjected to the following test sequence after this test: EN 2591-101: a discolouration is admissible. EN 2591-206: applicable to specimens exposed to non-conducting test fluids (except mated connectors during phase 1). EN 2591
41、-408: specimens may be lubricated if specified. EN 2591-409. This page deliberately left blankBSI is the national body responsible for preparing British Standards and other standards-related publications, information and services.BSI is incorporated by Royal Charter. British Standards and other stan
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