Bsi bs en 03660 001 2016

BSI Standards PublicationAerospace series — Cable outlet accessories for circular and rectangular electrical and optical connectors Part 001: Technical specification... NORME EUROPÉENNE

BSI Standards Publication

Aerospace series — Cable outlet accessories for circular and rectangular electrical and optical connectors

Part 001: Technical specification

This British Standard is the UK implementation of EN 3660-001:2016.

It supersedes BS EN 3660-001:2006 which is withdrawn

The UK participation in its preparation was entrusted to Technical Committee ACE/6, Aerospace avionic electrical and fibre optic technology

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 provisions of a contract Users are responsible for its correct application

© The British Standards Institution 2016

Published by BSI Standards Limited 2016 ISBN 978 0 580 89611 8

ICS 49.060

Compliance with a British Standard cannot confer immunity from legal obligations.

This British Standard was published under the authority of the Standards Policy and Strategy Committee on 31 January 2016

Amendments/corrigenda issued since publication

NORME EUROPÉENNE

English Version

Aerospace series - Cable outlet accessories for circular and

rectangular electrical and optical connectors - Part 001:

Technical specification

Série aérospatiale - Accessoires arrière pour

connecteurs circulaires et rectangulaires électriques et

optiques - Partie 001 : Spécification technique

Luft- und Raumfahrt - Endgehäuse für elektrische und optische Rund- und Rechtecksteckverbinder - Teil 001:

Technische Lieferbedingungen

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 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, 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 has 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, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom

EUROPEAN COMMITTEE FOR STANDARDIZATION

C O M I T É E UR O P É E N DE N O R M A L I SA T I O N

E UR O P Ä I SC H E S KO M I T E E F ÜR N O R M UN G

CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels

Contents Page

European foreword 3

1 Scope 4

2 Normative references 4

3 Terms and definitions 5

4 Conditions of use 5

5 Design and description 6

6 Dimensions and mass 6

7 Operation 7

8 Tests 7

9 Quality assurance 9

10 Designation and marking 13

11 Delivery condition 13

12 Packaging 13

13 Storage 14

European foreword

This document (EN 3660-001:2016) 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 Associations 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 July 2016, and conflicting national standards shall be withdrawn at the latest by July 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 3660-001:2006

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, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom

1 Scope

This European Standard defines cable outlet accessories for use with circular and rectangular, electrical and optical connectors on aerospace equipment These may be sealed or unsealed and include accessories suitable for the suppression of radio frequency and electromagnetic interference

This European Standard is used in conjunction with circular and rectangular electrical and optical connectors for varying temperature ranges, environmental conditions, fire resistant and non-fire resistant applications as designated in the product standards

2 Normative references

The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application For dated references, only the edition cited applies For undated references, the latest edition of the referenced document (including any amendments) applies

EN 2591- 1), Aerospace series — Elements of electrical and optical connection — Test methods

EN 3660-002, Aerospace series — Cable outlet accessories for circular and rectangular electrical and

optical connectors — Part 002: Index of product standards

EN 9100, Aerospace series — Quality Management Systems — Requirements for Aviation, Space and

Defense Organizations

EN 9133, Aerospace series — Quality management systems — Qualification procedure for aerospace

standard parts

ISO 261, ISO general purpose metric screw threads — General plan

ISO 263, ISO inch screw threads — General plan and selection for screws, bolts and nuts — Diameter

range 0.06 to 6 in

ISO 965-1, ISO general-purpose metric screw threads — Tolerances — Part 1: Principles and basic data IEC 60050-581, International electrotechnical vocabulary — Electromechanical components for

electronic equipment

MIL-HDBK-454B, General Guidelines for Electronic Equipment 2)

1) All parts quoted in Table 3

2) Published by: DoD National (US) Mil Department of Defense http://www.defenselink.mil/

3 Terms and definitions

For the purposes of this document, the terms and definitions given in IEC 60050-581 apply together with the following

3.1

backshell

non-preferred term, use cable outlet accessory

3.2

cable screen termination

a device for terminating the cable screen to the cable outlet and giving electrical continuity

3.3

cable tie

a flexible strap or cord for securing a cable bundle to a cable outlet

3.4

coupling nut

an accessory or part of a component which secures the cable outlet to the body of the connector

4 Conditions of use

4.1 General

In accordance with the individual the product standard, refer to EN 3660-002

4.2 Accessory styles

See Table 1

Table 1 Style Description

A Cable outlet, unsealed

B Cable outlet, sealed

C Cable outlet, shielded, unsealed

D Cable outlet, shielded, sealed

E Conduit adapter, unsealed

F Conduit adapter, sealed

G Adaptor (misc incl rectangular), unsealed

H Adaptor (misc incl rectangular), sealed

J Cable outlet, for heat shrinkable boot, sealed

K Cable outlet, for heat shrinkable boot, shielded, sealed

Z Various components, tools

4.3 Material/finish classes

See Table 2

Table 2 Class Temperature range Material/finish

A − 65 °C to 175 °C Aluminium/black anodised

J − 65 °C to 175 °C Non-metallic/olive drab cadmium plated

K − 65 °C to 260 °C Stainless steel/passivated

KE − 65 °C to 200 °C Stainless steel/passivated

M − 65 °C to 200 °C Non-metallic/electroless nickel plated

N(F) − 65 °C to 200 °C Aluminium/electroless nickel plated

P − 65 °C to 175 °C Non-metallic/unplated

T − 65 °C to 175 °C Aluminium /nickel PTFE(Teflon) plated

W − 65 °C to 175 °C Aluminium/olive drab cadmium plated

Z − 65 °C to 175 °C Aluminium/black zinc nickel plated

5 Design and description

5.1 Design

Cable outlet accessories shall be designed and constructed to withstand normal handling incident to installation and maintenance in service They shall be capable of being fitted to and removed from connectors by use of hand only unless otherwise specified in the product standard The cable outlet accessory product standard shall contain outline drawings relating to general installation and interchangeability

5.2 Materials

Materials shall be suitable for the purpose intended and as specified in the product standard When a definite material is not specified, a material shall be used which will enable the accessory to meet the performance requirements specified in the product standard

When dissimilar materials are employed in intimate contact with each other, protection against corrosion shall be used to ensure that the differential electromotive potential does not exceed 0,25 V

5.3 Finish

The finish shall be in accordance with the product standard

5.4 Threads

The threads shall conform to either ISO 261, ISO 263 or ISO 965-1 where applicable

6 Dimensions and mass

The dimensions of cable outlets and their mass shall be as defined in the product standard

7 Operation

Installation instructions and tooling, where necessary, shall be defined in the product standard

8 Tests

Tests from the parts of EN 2591-100 applicable to cable outlet accessories are detailed in Table 3

All tests shall be carried out with the cable outlet accessory fitted to a receptacle connector or simulation thereof unless otherwise specified in the product standard

Table 3

EN 2591- Designation of the test Remarks

101 Visual inspection Initial examination

Details to be examined:

identification of materials in accordance with the product standard

– identification;

– appearance;

– marking;

– surface finish

Final examination

No loosening of parts, cracks, excessive wear, detached part, etc shall be observed

102 Examination of dimensions and mass In accordance with the product standard

NOTE In the case of an approved inspection system, piece parts (without relation to manufacturing batches of finished products) can be used for dimensional inspection

205 Housing (shell) electrical continuity In accordance with the product standard

212 Surface transfer impedance

(from 100 MHz to 1 GHz) a In accordance with the product standard

212 Shielding effectiveness

from 100 MHz to 1 GHz In accordance with the product standard

214 Lightning strike, current and voltage

pulse In accordance with the product standard Test set up and mounting should be as per

EN 2591-214, except the accessory under test shall be fitted directly to an empty receptacle connector or suitable simulation thereof (no plug connector is required)

301 Endurance at temperature In accordance with the product standard

305 Rapid change of temperature In accordance with the product standard

306 Mould growth Unless otherwise required by the product

standard Method A Duration 28 days Nil Growth No prior washing No surface etching

EN 2591- Designation of the test Remarks

308 Sand and dust In accordance with the product standard

314 Immersion at low air pressure In accordance with the product standard

315 Fluid resistance In accordance with the product standard

316 Ozone resistance In accordance with the product standard

317 Flammability In accordance with the product standard

318 Fire-resistance In accordance with the product standard

402 Shock In accordance with the product standard

Mounting:

A counterpart receptacle connector, mounted on

a suitable fixture, shall be attached to the shock machine The wired mating plug connector and connector accessory shall be engaged with the receptacle connector by normal locking means The cable shall be clamped to a fixed point at least 200 mm from the rear of the assembly

403 Sinusoidal and random vibration In accordance with the product standard

Mounting:

A counterpart receptacle connector shall be mounted on a fixture, which in turn shall be attached to the vibration table The fully wired counterpart connector or approved modification

to fixturing and connector accessory shall be engaged with the receptacle by normal locking means No safety wire shall be used The sensing device shall monitor vibration at a point on or near the receptacle connector Any cable shall be supported a minimum of 200 mm from the end

of the accessory

406 Mechanical endurance In accordance with the product standard

408 Mating and unmating forces In accordance with the product standard

Mounting;

Samples shall be coupled to a receptacle shell of simulation thereof, which is in turn mounted to

a suitable torque measuring device

420 Mechanical strength of rear

accessories In accordance with the product standard

422 Locking wire hole strength In accordance with the product standard

423 Connector rear accessories thread

strength In accordance with the product standard

513 Magnetic permeability In accordance with the product standard

515 Hydrolytic stability In accordance with the product standard

a 1 GHz to 10 GHz under consideration

9 Quality assurance

9.1 General

Quality assurance shall conform to the requirements of EN 9133 and the manufacturer’s quality systems shall conform to EN 9100

9.2 Conditions for qualification

9.2.1 Initial qualification

Initial qualification of a cable outlet accessory is obtained:

 either when specimens as defined in 9.2.2 have satisfied the applicable tests in Group 0, Group 1, Group 2, Group 3 and Group 4 (see Tables 5, 6, 7 ,8 and 9)

9.2.2 Sampling and definition of specimens

Four sample cable outlet accessories shall be provided in each of two sizes, a total of eight For circular connectors these shall be small (shell size 08 to 13) and large (shell size 20 and larger) For samples for rectangular connectors, refer to the product standard The eight samples shall be divided into Group 0 and Group 1 (or Groups 3 and 4) as shown in Table 4 and prepared as instructed in 9.2.3 Thirteen samples shall also be provided for Group 2 (fluid resistance test) An additional 2 samples (small and large), for Group 5, shall also be provided if lightning strike applies in the product standard

Table 4

Shell

size

range

Allocation of specimens Groups 0 and 3 Groups 1 and 4 Group 5 Group 2

Min

cable bundle diameter

Max

cable bundle diameter

Min

cable bundle diameter

Max

cable bundle diameter

Max

cable bundle

13 Total

9.2.3 Preparation of specimens

All samples shall be coupled to a qualified receptacle connector or simulation thereof unless otherwise specified in the product standard Where tests in the product standard requires specimens to be wired,

50 % of the specimens shall be wired with a minimum cable bundle diameter and 50 % of the specimens with a maximum in accordance with the cable entry range specified in the product standard

9.2.4 Programme of qualification tests

The qualification approval tests defined in Tables 5, 6, 7, 8, 9 and 10 shall be carried out in the sequence indicated

Test EN 2591-306 is to be performed on materials and is not included in the test groups If the materials used conform to MIL-HDBK-454B, guideline 4, Group 1, test EN 2591-306 is not required to be