IEC TR 62691:2011 pdfダウンロード。 Optical fibre cables – Guide to the installation of optical fibre cables 1 Scope Optical fibre cabling provides a high performance communications pathway whose characteristics can be degraded by inadequate installation. This technical report provides guidance to assist the user and installer with regard to the general aspects of the installation of optical fibre cables covered by the IEC 60794 series of specifications, and the particular aspects of the ‘blowing’ technique. Optical fibre cables are designed so that normal installation practices and equipment can be used wherever possible. They do, however, generally have a strain limit...