ISO INTERNATIONAL STANDARD 18170 First edition 2017-04 Aerospace series AC induction electric motor driven, variable delivery, hydraulic pumps - General requirements Série aérospatiale Pompes hydrauliques a debit variable, actionnées par des moteurs électriques a induction CA - Exigences générales Reference number ISO 18170:2017(E) International Organization for Standardization @ IS0 2017 e=ZHEJIANG INST OF STANDARDIZATION C1 5956617 HS under I Not for Resale, 2017/8/21 01:02:57 nitted without license from IHS IS0 18170:2017(E) COPYRIGHT PROTECTED DOCUMENT IS0 2017, Published in Switzerland All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized otherwise in any form 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 copyrightoffice Ch. de Blandonnet 8 . CP 401 CH-1214 Vernier, Geneva, Switzerland Tel. +41 22 749 01 11 Fax +41 22 749 09 47 [email protected] www.iso.org Licensee-ZHEJIANG INST OF STANDARDIZzRoISQ7 - All rights reserved Not for Resale, 2017/8/21 01:02:57 No reproduction or rietworking permited without license from IHS IS0 18170:2017(E) Contents Page Foreword ..vi 1 Scope .1 2 Normative references 3 Terms and definitions 4 General requirements.. 4.1 Order of precedence. ..8 4.2 Electrical system characteristics 4.3 Hydraulic system characteristics ..8 4.4 Airworthinessreguirements. 4.5 Qualification ..8 5 Functional requirements ..8 5.1 Functional requirements - electrical ..8 5.1.1 ACpowerrequirements. 5.1.2 Electromagnetic interference ..10 5.1.3 Electrical bonding ..10 5.1.4 Protection requirements. .11 5.1.5 Electric motor cooling methods .11 5.2 Functional requirements - Hydraulic .12 5.2.1 Hydraulic fluid ..12 5.2.2 EMP pump pressure. .12 5.2.3 Inlet pressure. .13 5.2.4 Case drain pressures .13 5.2.5 Flows. .14 5.2.6 EMP pump characteristics .15 5.2.7 Rated speed .15 5.2.8 Efficiency ..17 5.2.9 Heat rejection .18 5.2.10 Variable delivery control ..18 5.2.11 Rated temperature 21 5.2.12 Dry running 21 5.3 Functional requirements - EMP integrated assembly 21 5.3.1 Acousticnoiselevel 21 5.3.2 Endurance. .21 5.4 Environmental requirements. .21 6 Detailed design requirements. .22 6.1 Dimensionally critical components. 22 6.2 Maintainability features.. 22 6.3 Seals. 22 6.4 Lubrication 22 6.5 Balance. 23 6.6 Self-contained failure 23 6.7 Safety wire sealing.. 23 6.8 Electro-conductive bonding. 23 6.9 Marking 23 6.9.1 Nameplate 23 6.9.2 Fluid identification. 24 6.9.3 Ports 24 6.9.4 Direction of rotation 24 6.9.5 Electrical connection details .24 7 Strength requirements .24 7.1 General. .24 7.2 Electric motor. .24 ii Licensee=ZHEJIANG INST OF STANDARDIZATION C1 5956617 vided by IHS under license with ISO dwithout license from IHS Not for Resale, 2017/8/21 01:02:57