1、A. E. C. M .A. STAN DARD NORME A.E.C.M.A. A.E.C.M.A. NORM Edition approved for publication 1992-08-31 prEN 3475 Part 701 Issue P 1 August 1992 Comments should be sent within six months C2 Chairman after the date of publication decision Technopolis - 175. rue Jean-Jacques Rousseau 92138 Issy-les-Moul
2、ineaux Cedex - FRANCE AECMA M. J. LE CUNFF . EDITE PAR LASSOCIATION EUROPEENNE DES CONSTRUCTEURS DE MATERIEL AEROSPATIAL Technopolis - 175. rue Jean-Jacques Rousseau - F-92138 Issy-les-Moulineaux Cdex - T1 (1 137 36 98 76 UDC Key words : ENGLISH VERSION Aerospace series Cables, electrical, aircraft
3、use Test methods Part 701 - Strippability and adherence of insulation to the conductor Srie arospatiale Luft- und Raumfahrt Cbles lectriques Elektrischen Leitungen Mthodes dessais Prfverfa hren usage aronautique Partie 701 - Dnudabilit et adhrence de lisolation sur le conducteur fr Luftfahrt Verwend
4、ung Teil 701 - Abisolierbarkeit und Haftfestigkeit der Isolierung auf dem Leiter This Aerospace Series. pre-standard has been drawn up under the responsibility of AECMA (Association Europenne des Constructeurs de Matriel Arospatial). It is published on green paper for the needs of AECMA-Members. It
5、has been technically approved b y the experts of the concerned Commission following comment by the Member countries. Subsequent to the publication of this pre-standard, the technical content shall not be changed to an extent that interchangeability is affected, physically or functionally, without re
6、-identification of the standard. After examination and signature of the AECMA Standard Checking Centre (NPS) and formal agreement of the Official Services of the Member countries it will be submitted as a draft European Standard to CEN (European Committee for Standardization) for final vote. COPYRIG
7、HT Association Europeene Des Constructeurs de Materiel AerospaceLicensed by Information Handling ServicesprEN 3475-701 Page 3 1 Scope and field of application This standard specifies a method of measuring the strippability and adherence of the insulation to a conductor of a finished cable. It shall
8、be used together with EN 3475-100. 2 References EN 3475-100 Aerospace series - Cables, electrical, aircraft use - Test methods - Part 100 - General 1) EN 2812 Aerospace series - Stripping of electric cables as defined by EN 2084, EN 2234, EN 2235 and EN 2346 1) 3 Preparation of specimens 3.1 Insulat
9、ion stripping properties Stripping shall be carried out without difficulty over 5 mm for cables with sections up to 5 mm2 and over 8 mm for cables with a section greater than 5 mm2 at the two ends of each specimen using the stripping tools in accordance with EN 281 2. The manufacturer shall state in
10、 the test report which tools have been used. 3.2 Adherence of insulation to the conductor The adherence of the insulation shall be adequate when tests are carried out on the specimens prepared according to figure 1. The insulation shall be cut around the whole periphery of each specimen 5 mm and 30
11、mm from one end (for sizes up to 5 mm2). The insulation shall then be stripped from both ends to leave a length of insulation on the conductor. 30 mm 5 mm & - Figure 1 1) Published as AECMA pre-standard at the date of publication of the present standard. Previous page is blank COPYRIGHT Association
12、Europeene Des Constructeurs de Materiel AerospaceLicensed by Information Handling Services- CEN PREb(*3475 (PART*701) 92 9 3404589 0031504 910 W prEN 3475-701 Page 4 4 Methods 4.1 Method for stripping capability of the jacket (screened cables) The stripping capability is characterised by the time re
13、quired to strip a 80 mm length of the jacket. A suitable tool shall be used. 4.2 Method for adherence of the insulation Pass the conductor through a calibrated hole (conductor diameter + 0,05 mm) and subject it to an increasing tensile force F until it slides inside the insulating cover. The tensile
14、 speed shall be (100 k 10) mm/min. 5 Requirements 5.1 Requirements for stripping capability of the jacket (screened cables) The stripping operation shall not exceed 40 s for a suitably skilled operator. 5.2 Requirement for adherence of the insulation The minimum values of the forces of adherence shall be at least equal to the values specified in the technical specification. COPYRIGHT Association Europeene Des Constructeurs de Materiel AerospaceLicensed by Information Handling Services
