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1、5:06BS EN 14534:2016 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of EN 14534:2016. Itsupersedes BS EN 14534:2003 and PD CEN/TR 15369:2006 which arewithdrawnThe UK participation in its preparation was entrusted to TechnicalCommittee SVS/4, Postal services.A list of organizations represented on this committee can beobtained on request to its secretary.This publication does not purport to include all the necessaryprovisions of a contract. Users are responsible fo。

2、gineering SocietySponsored by theSubstation CommitteeIEEE Standards25 February 2005Print: SH95283PDF: SS95283Recognized as anAmerican National Standard (ANSI)The Institute of Electrical and Electronics Engineers, Inc.3 Park Avenue, New York, NY 10016-5997, USACopyright 2005 by the IEEE.All rights reserved. Published 23 February 2005. Printed in the United States of America.IEEE is a registered trademark in the U.S. Patent +1 978 750 8400. Permission to photocopy portions of any individual。

3、ion IT-R 102/7) (1994-1997) The Radiocommunication Assembly, considering 4 the continuing need in all parts of the world for readily available standard frequency and time reference signals; b) that different levels of precision and accuracy, ranging from 1 s down to about 1 ns, are required for the large number of diverse applications for time and frequency; c) that, in many time and frequency applications, the selection of an optimum time and frequency transfer system o。

4、D Copyright 2012 IEC, Geneva, Switzerland All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from either IEC or IECs member National Committee in the country of the requester. If you have any questions about IEC copyright or have an enquiry about obtaining additional rights to this publication, please contac。