Aircraft — Ground support electrical supplies — General requirements

ISO 6858:2017 specifies the electrical output characteristics and interface requirements between an aircraft and ground support electrical supplies. This includes all external electric power generation facilities, provided as part of a central source or in point-of-use application. Requirements for safety features are also included. Performance and safety issues under regional control are not addressed in this document. Requirements for ground traffic control purposes, such as towing points, identification and warning lights, etc. are also excluded. The electrical characteristics relate to nominal 28 V DC and either 115/200 V or 230/400 V three-phase, 400 Hz AC outputs measured at the aircraft attaching connector as indicated in Figure 1.

Aéronefs — Alimentations électriques de service au sol des avions — Conditions générales requises

General Information

Status

Published

Publication Date

05-Dec-2017

ICS

49.060 - Aerospace electric equipment and systems

49.100 - Ground service and maintenance equipment

Technical Committee

ISO/TC 20/SC 1 - Aerospace electrical requirements

Drafting Committee

ISO/TC 20/SC 1/WG 13 - Characteristics of aircraft electrical systems (Revision of ISO 1540)

Current Stage

9092 - International Standard to be revised

Completion Date

06-Mar-2024

Ref Project

Relations

Revises

ISO 6858:1982 - Aircraft — Ground support electrical supplies — General requirements

Effective Date

07-Sep-2013

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ISO 6858:2017 - Aircraft -- Gr...

INTERNATIONAL ISO
STANDARD 6858
Second edition
2017-11
Aircraft — Ground support electrical
supplies — General requirements
Aéronefs — Alimentations électriques de service au sol des avions —
Conditions générales requises
Reference number
ISO 6858:2017(E)
©
ISO 2017

---------------------- Page: 1 ----------------------
ISO 6858:2017(E)

COPYRIGHT PROTECTED DOCUMENT
© ISO 2017, Published in Switzerland
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized otherwise in any form
or by any means, electronic or mechanical, including photocopying, or posting on the internet or an intranet, without prior
written permission. Permission can be requested from either ISO at the address below or ISO’s member body in the country of
the requester.
ISO copyright office
Ch. de Blandonnet 8 • CP 401
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Tel. +41 22 749 01 11
Fax +41 22 749 09 47
copyright@iso.org
www.iso.org
ii © ISO 2017 – All rights reserved

---------------------- Page: 2 ----------------------
ISO 6858:2017(E)

Contents Page
Foreword .v
Introduction .vi
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Technical basis . 4
5 Electrical characteristics . 4
5.1 General . 4
5.1.1 Overview . 4
5.1.2 Alternating current (AC) power sources . 5
5.1.3 Direct current (DC) power sources . 5
5.2 Interface connector . 6
5.3 Electromagnetic interference . 6
5.3.1 Utility interface . . . 6
5.3.2 Aircraft interface . 6
5.4 AC steady-state output characteristics . 6
5.4.1 General. 6
5.4.2 Steady-state AC load characteristics . 6
5.4.3 Steady-state AC voltage performance . 7
5.5 AC transient characteristics .
...

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