BSI PD IEC/TR 62691:2016
$189.07
Optical fibre cables. Guidelines to the installation of optical fibre cables
| Published By | Publication Date | Number of Pages |
| BSI | 2016 | 50 |
IEC TR 62691, which is a Technical Report, gives recommendations for handling and installing optical fibre cables on metropolitan communication networks. Installation methods covered by this document include underground ducts, trenchless technique, blowing in microducts, aerial installation on poles, lashed aerial in metropolitan networks, direct buried and use of trenches.
Special installation situations such as tunnelling and lead-in installations, on-bridges, underwater, use of sanitary sewers, high pressure gas pipes and drinking water pipes are commented and detailed.
Installation and maintenance of optical fibre cables on overhead power lines including the following are not covered by this document and are referred to in IEC TR 62263:
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optical ground wire (OPGW) fibre cable;
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optical phase conductor (OPPC) fibre cable;
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optical attached fibre cable (OPAC);
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all dielectric self-supporting (ADSS) optical fibre cable.
IEC TR 62263 includes an extensive coverage on recommendations to ensure the safety of personnel and equipment when installing or maintaining these types of optical fibre cables on overhead power lines.
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 4 | CONTENTS |
| 7 | FOREWORD |
| 9 | INTRODUCTION |
| 10 | 1 Scope 2 Normative references 3 Installation planning 3.1 Installation specification |
| 11 | 3.2 Route considerations 3.3 Cable installation – Tension considerations |
| 12 | 3.4 Duct installations – Cable tension predictions 3.5 Maximum tension or compression force exerted on cable 3.5.1 General 3.5.2 Total cable tension – pulling applications |
| 13 | Figures Figure 1 – Cable tension calculations (Equations (1) to (3)) |
| 14 | 3.5.3 Total cable tension – pushing, blowing, or pulling applications Tables Table 1 – Calculation for total tension |
| 16 | Figure 2 – Cable tension calculations (Equations (4) to (9)) Table 2 – Calculation for pulling force in Figure 2 |
| 17 | Table 3 – Calculation for pushing force in Figure 2 |
| 18 | Table 4 – Calculation for blowing force in Figure 2 |
| 19 | 3.6 Installation temperature 3.7 Information and training Figure 3 – Cable tension calculations |
| 20 | 4 Cable installation methods 4.1 General considerations 4.2 Safety in confined spaces 4.3 FTTX installation |
| 21 | 4.4 Pre-installation procedures 4.5 Installation of optical cables in underground ducts 4.5.1 Application Figure 4 – FTTX applications |
| 22 | 4.5.2 Installation using trenchless technique 4.5.3 Cable overload protection methods 4.5.4 Cable bending and guiding systems 4.5.5 Winching equipment and ropes |
| 23 | 4.5.6 Cable friction and lubrication Figure 5 – Cable with fitted sock-type grip |
| 24 | 4.5.7 Cable handling methods to maximise installed lengths Figure 6 – The “figure-8” system |
| 25 | 4.5.8 Jointing length allowance 4.5.9 Blowing techniques for the installation of fiber optic cables into ducts 4.5.10 Optical fibre cable installation by floating technique 4.6 Installation of aerial optical cables 4.6.1 Application Figure 7 – Optical fibre cabling in an underground duct |
| 26 | Figure 8 – Aerial cable parameters |
| 27 | Figure 9 – Analysis of forces acting on an aerial cable with ice formation |
| 28 | 4.6.2 Installation methods 4.6.3 Cable protection methods Figure 10 – Example of calculated forces for an aerial operation cable design |
| 29 | 4.6.4 Winching and guiding systems 4.6.5 Methods to maximise lengths 4.6.6 Jointing length allowance 4.6.7 In-service considerations Figure 11 – Aerial cable joint point |
| 30 | 4.6.8 Lashed aerial applications Figure 12 – Aerial cable applications Figure 13 – Drive-off (moving reel) method |
| 31 | Figure 14 – Stationary reel method |
| 33 | 4.7 Installation of buried cable 4.7.1 Installation methods 4.7.2 Cables in trenches Figure 15 – Minimum bend radius for the optical cable at dead ends (single fixing) and at directional changes (double anchorage) situations |
| 34 | Table 5 – Minimum installation depths |
| 35 | 4.7.3 Installing cables by ploughing 4.7.4 Methods to maximise lengths 4.7.5 Jointing length allowance 4.8 Installation in special situations 4.8.1 Tunnel and building lead-in 4.8.2 Bridges 4.8.3 Underwater |
| 36 | 4.8.4 Storm and sanitary sewers |
| 37 | Figure 16 – Conduit robotized installation Figure 17 – Spring loaded stainless-steel ring – Conduit fastening |
| 38 | Figure 18 – Schematic drawing robotized installation – Drilling |
| 39 | Figure 19 – Schematic drawing – Spanning of optical fibre cables within sewers Figure 20 – Schematic drawing – Laying on the ground of optical fibre cables within sewers |
| 40 | 4.8.5 High pressure gas pipes (fiber-in-gas) Figure 21 – Picture of an the I/O-port |
| 41 | 4.8.6 Drinking water pipes Figure 22 – Schematic drawing of cable installation within gas pipe |
| 42 | Figure 23 – I/O-port for optical fibre installation in water drinking pipes Figure 24 – Schematic drawing of OF cable installation within drinking water lines |
| 43 | 4.8.7 Industrial environments 4.9 Installation of indoor cables 4.9.1 General considerations 4.9.2 Cable routing Figure 25 – Installation of I/O-ports on high pressure PE drinking water pipes |
| 44 | 4.9.3 Confined spaces 4.9.4 Installation of cables in the vertical riser area of buildings 4.10 Blown systems 4.10.1 General considerations |
| 45 | 4.10.2 Tube installation 4.10.3 Fibre and cable installation |
| 46 | 4.11 Cable location 5 Lightning protection Figure 26 – Cable installation by cascade blowing |
| 47 | Bibliography |
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BSI PD IEC/TR 62691:2016
Optical fibre cables. Guidelines to the installation of optical fibre cables Published By Publication Date…
