Aircraft — Smart contactor — General requirements

This document specifies the definitions, titles of design and general requirements and test methods to determine the performance of smart contactors for use in aircraft electrical power systems. The smart contactor consists of a switching driving circuit and a power switch for protection, action on control signals, and providing status information.

Aéronefs — Contacteurs intelligents — Exigences générales

General Information

Status
Published
Publication Date
15-Nov-2018
Current Stage
9020 - International Standard under periodical review
Start Date
15-Oct-2023
Completion Date
15-Oct-2023
Ref Project

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ISO 20949:2018 - Aircraft -- Smart contactor -- General requirements
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INTERNATIONAL ISO
STANDARD 20949
First edition
2018-11
Aircraft — Smart contactor — General
requirements
Aéronefs — Contacteurs intelligents — Exigences générales
Reference number
ISO 20949:2018(E)
©
ISO 2018

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ISO 20949:2018(E)

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© ISO 2018
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ii © ISO 2018 – All rights reserved

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ISO 20949:2018(E)

Contents Page
Foreword .v
Introduction .vi
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 General requirements . 3
4.1 Detail specification sheets. 3
4.2 Materials . 4
4.3 Construction . 4
4.4 Terminals . 4
4.4.1 Main terminals . 4
4.4.2 Auxiliary terminals . 5
4.5 Enclosures . 5
4.5.1 General. 5
4.5.2 Open enclosures . 6
4.5.3 Enclosed enclosures (ventilated explosion-proof) . 6
4.5.4 Sealed (other than hermetically) enclosures . 6
4.5.5 Hermetically sealed enclosures . 6
4.5.6 Grounding of enclosures . 6
4.6 Installation clearances .
...

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