1、INTERNATIONAL TELECOMMUNICATION UNION)45G134 , TELECOMMUNICATIONSTANDARDIZATION SECTOROF ITUCONSTRUCTION, INSTALLATIONAND PROTECTION OF CABLE AND OTHERELEMENTS OF OUTSIDE PLANT-%4(/$3G0G0/&G0G0+%0).G0G0#!“,%35.$%2G0G0!3G0G002%3352%)45G134G0G0RecommendationG0G0, (Extract from the “LUEG0“OOK)NOTES1 IT
2、U-T Recommendation L.6 was published in Volume IX of the Blue Book. This file is an extract from theBlue Book. While the presentation and layout of the text might be slightly different from the Blue Book version, thecontents of the file are identical to the Blue Book version and copyright conditions
3、 remain unchanged (see below).2 In this Recommendation, the expression “Administration” is used for conciseness to indicate both atelecommunication administration and a recognized operating agency. ITU 1988, 1993All rights reserved. No part of this publication may be reproduced or utilized in any fo
4、rm or by any means, electronic ormechanical, including photocopying and microfilm, without permission in writing from the ITU.Volume IX - Rec. L.6 1Recommendation L.6Volume IX - Rec. L.6METHODS OF KEEPING CABLES UNDER GAS PRESSURE(Geneva, 1972)The CCITT draws attention to the improvements in service
5、 made possible by protecting telecommunicationcables against the ingress of moisture when the sheath is perforated or damaged. To ensure that the circuits remain freeof interruption until repairs can be completed, the CCITT recommends that Administrations recognize the utility offollowing the advice given in the manual Protection of telecommunication cables by pressurization, ITU, Geneva,1970.
