When installing optical cable, what you don't know could really hurt you or damage your cable. Because proposed installation would occur at a depth of more than one foot below ground, the project could impact existing underground utilities and service connections. Extensively revised to cover the latest technologies and equipment, this portable tool shows you how to … Presented in descending order, these galleries are ranked based on total website traffic over the last 12 months. The installation of optical cable relies heavily on testing and documentation. (273 kG) for outdoor cable. • When pulls are accomplished in two or more stages, and spare cable must be unreeled, it shall be configured in large figure-eights on a safe, flat surface, such as the ground or a clean floor. The BS EN 50173 standard is a generic standard for premises cabling for information technology. Fiber optic cables are designed to withstand all typical installation and environmental stresses expected in the specific application. (industry standard for OSP Cable) or less. Few fiber systems have power enough to cause eye damage (cable TV systems being the exception), and most broken fiber ends will diffuse the light passing through them anyway. This standard covers an all-dielectric fiber optic (wrap) cable designed to be helically wrapped around a conductor or other messenger on overhead power facilities. Pulling Tension: do not exceed specification for cable. It defines performance requirements for components and cabling systems. Generally, one or. Table 6: List of Facility Installation Standards ... underground cable television facilities, underground natural gas facilities, underground telephone facilities, underground fiber optic cable installations, legal survey requirements, required permits, etc. • Technicians making fiber terminations or splices or working with bare fiber shall be supplied with double-sided tape, or some other effective means, for picking up broken or stray pieces of fiber. Top 10 Energy-Efficiency States Named in New ACEEE Scorecard, 2020’s 10 Most Popular Code Quizzes of the Week, ABC’s Construction Backlog Plunges in November. When installing optical cable, what you don't know could really hurt you or damage your cable. Hence the safety requirements of this section of the standard: • Live optical fiber ends (live fibers are those with signals being sent through them) shall not be inspected by technicians; fibers shall be dark (no signal being transmitted) when inspected. Minimum Bend Radius (MBR): maintain at all times. a) Splicing shall be performed as per provided documentation and reference drawings. • If there is a risk of fibers being inspected live; especially when the system light source is a laser, all technicians working on the system shall wear protective glasses, which have infrared filtering. That's all changed now. In addition, other types of testing may be required for certain types of installations. Electrical Product Listing: To Be or Not to Be? Yes, the NEC has covered optical cable for longer than that, but these requirements focus on fire safety and installation with electrical conductors; and not a whole lot more. Underground Utility Standards ASTM underground utilities standards include standard practices for installing and operating optical fiber systems and repair of sewer systems. All work areas where bare fiber may exist shall be repeatedly and consistently cleared of all bare fiber pieces. • When pulling fiber-optic cable through nonmetallic raceways (or nonmetallic 90 degrees elbows) with rope, maximum speed through a duct shall be about 3 ft (91 cm) per second. Limitations: Optical fiber cables must be handled in compliance with their stated design ratings. General section. • Fiber-optic work areas shall be clean, organized, well lit, and shall be equipped with a bottle or other suitable container for broken or stray fiber pieces. Exceptions shall be made to this requirement only for very short runs, which require a minimum pulling force. Another section addresses the tightness of supports. II.1. These sections outline proper installation of optical cable. Ergon Energy Corporation Limited ABN 50 087 646 062 Ergon Energy Queensland Pty Ltd ABN 11 121 177 802. All such trace copies shall be clearly marked as to the date taken, and details of the cable and fiber runs. My recommendation is to allow 30 mm at every outlet box, and at least 3 m at every pulling point. Always roll the cable off the spool instead of spinning it off the spool end. Safety precautions. From site surveys to solution design, to installation and certification of copper and fiber optic cable systems, BEI Connect creates the highest-quality cable infrastructures to support our clients’ needs. (136 kG) for multi-fiber indoor cables, and 600 (273 kG) lbs. • When powered pulling equipment is used to install optical cable, tension monitoring equipment or breakaway swivels shall be used. (I was involved with the production of this standard, and its final form was by no means certain until the standards committee took several votes.) commonly placed with several feet of soil cover over the cable with the depth of cover. © 2020 Endeavor Business Media, LLC. All bare fiber pieces shall be disposed of so that they cannot escape and cause a hazard. The length of optical fiber cable; Number and quality of optical fiber splices in the optical fiber channel; Number and quality of optical fiber jumpers (e.g., patch cord assemblies) Each set of IEEE optical fiber network applications equipment feature a standards-based loss budget for … If mule tape is used, the top speed shall be 9 ft (274 cm) per second. two cables are placed in an open trench dug by a trencher or plowed directly into the soil. The requirements of this section are as follows: All optical test results shall be thoroughly and accurately documented, and copies of the test results saved in a permanent form (typically in both hard copy and on computer disk). Direct Burial Underground Fiber Optic Cable lets you bury communications and transmissions systems underground without requiring additional protection. Unless stated otherwise by the cable manufacturer, the maximum pulling tensions used for optical cables shall be 300 lbs. All rights reserved. During the installation of fiber optic cable, it is highly recommended to use a pulling grip Rule 3. More importantly, it requires a change of mind-set for workers that cut their teeth on power wiring. The intent of the standard is to define "a minimum level of quality for fiber-optic cable installations.". Although this seems obvious, one section details how cables must be supported: All optical cables shall be securely supported, and shall have the supports spaced closely enough that there will be no excessive force placed on the cable. I was quite pleased to find this section made it into the final standard without much revision. But for data, every run of cable must be separately tested and the results permanently documented. A fully updated fiber optic cable installation guide. • Unless stated otherwise by the cable manufacturer, the maximum pulling tensions used for optical cables shall be 300 lb. This is the hazard posed by broken pieces of fiber. The FOA and NECA (National Electrical Contractors Association) in 2001 cooperated to develop the first ANSI standard (American National Standard) covering the installation of fiber optic cable plants. • All technicians working on bare fiber shall thoroughly wash their hands immediately when leaving the work area. Here are the 5 basic rules to follow when installing any fiber cable. These are essentially small glass needles, and can be quite dangerous: Painful when stuck in the skin as a splinter, they are potentially life-threatening if ingested. HUO(24) Underground filled fiber optic splice closure and organizer capable of accommodating a minimum of 24 fibers. Ergon Energy Corporation Limited. Cables directly buried require no additional support. Fiber optic cable pulling sheaves should also be used at both the pulling end and pay-off end of the installation in order to maintain the proper bending radius of the fiber optic cable as the cable enters and exits the hand-hole, man-hole, etc. Long runs shall be tested with an optical time domain reflectometer, and permanent copies shall be made of all OTDR traces. Fiber Optic installation conductor shall install at least two (2) pipes with a minimum of twelve (12) cores on access network and 4 ducts on backbone network in order to facilitate fiber and duct sharing. Yes, the NEC has covered optical cable for longer than that, but these requirements focus on fire safety and installation with electrical. (1.3 cm) in diameter. Copies of the standard are available from the National Association of Electrical Contractors (NECA), and perhaps from some of the standards organizations themselves. Cable ties shall not be cinched too tightly, and shall have the free tab cut off, to prevent overtightening in the future. They shall also check their clothing, and pat themselves with clean tape to remove any stray pieces of bare fiber. Cable jackets shall not be directly pulled unless designed for the purpose, or unless the run is very short and requires a minimal pulling force. Notice that with power wiring we are seldom concerned with supports being overtightened. If you're company installs optical cable, you'll need to become very familiar with the guidelines outlined in this standard. for outdoor cables. 1.1 Products and Applications Included This standard covers fiber optic … This will put a twist in the … • A length of free cable shall be provided at each end of a cable pull. Specification for Installation of Underground Fibre. For most electrical installations, the only testing done is flipping on the light switch or pushing a Wiggy into the outlets. With two primary safety hazards associated with optical fiber systems, the more commonly talked about hazard is retina damage; due to looking into the ends of live fibers. Lashing Fiber Optic Cable To A Messenger Cable The installation process of a lashed aerial fiber optic cable will generally require one or more bucket trucks to allow workers to reach the location of the lashing, guide cables around poles and through trees or … • When underground raceways containing optical cables enter a structure, the raceway shall be sealed to prevent the entry of gasses into the structure. Supports may be placed up to 5 ft (1.52 m) apart for armored cables, or cables over 1/2 in. INSTALLATION GUIDE FOR OPTICAL FIBRE CABLE Edition 05.12.2002 (REV.1.0) Copyri g h t N e xans 2 002 – All data subject to c h ange w i thout prior notice TABLE OF CONTENTS 1 - Safety Warnings 2 - Working Practice 3 - Precautions 4 - Storage 5 - Generality 1 - Pre-Installation procedure 6 - Fibre optic cable construction 1 - Fibre 2 - Buffer Types Care shall be taken in verifying that the fibers are not live, since the light used in the majority of optical systems is not visible to the human eye. Rule 1. • Boxes used with optical cables shall be designed for the purpose, and shall be equipped with cable supports. All fiber optic cable terminations should be marked on racks or boxes where the cables terminate. (136 kG) for multi-fiber indoor cable and 600 lb. II. and testing cabling networks that use fiber optic cables and related components to carry signals for communications, security, control and similar purposes. • (Optional) End-to-end losses of individual fiber links The following tests shall be performed on all fiber-optic cable installations: • Continuity testing upon delivery of optical cables to the site of installation, • End-to-end loss testing for each complete transmitter-to-receiver link. Hence, fiber optic cable installation into a duct using a pulling method is suitable to apply within short distances. This standard is part of the American National Standards Institute (ANSI) National Electrical Installation Standards program. Familiarizing yourselfwith Standard 301 is a smart step to avoid such problems. Metropolitan Communications Group is an established leader in the underground construction and maintenance of communication infrastructures. - 72-ct UG Fiber Optic Cable: Stk No: 18-66-671. Underground utilities standards address safety and access rights, selection of the utility, and the continued maintenance of the utility once fiber has been installed. The cables' minimum bending radii shall not be violated. After mentioning that manufacturer's instructions take pre-eminence, the following rules are given: • When pulling optical cables into conduits, cable trays, or raceways, the strength member(s) of the cable shall bear all or nearly all of the pulling force. Cables in raceways are considered to be adequately supported by the raceway. Twisting Avoidance: use a break-away swivel, verify load rating is 600 lbs. 2) SPLICING. Underground fiber cable installations need to be carried out very carefully. The City provides water, recycled water, sanitary sewer, storm water, streets, street lighting, traffic control, and fiber-optic communication services (among other essential services) to Milpitas residents within an area of approximately 13.63 square miles. The section reads: All straps or supports placed on fiber-optic cables shall be tight enough to hold the cable securely, but shall not be tight enough to substantially deform the shape of the cable. The second concern, however, is far more serious. Familiarizing yourselfwith Standard 301 is a smart step to avoid such problems.Up until a little over a year ago an installation standard for optical cable didn't exist. The payment of these reserved pipes and cores by a new operator will follow the Guidelines for fiber and duct sharing. The Contractor shall be responsible for: placement of cable, installation and attachment of cable to support devices within the utility tunnel system, underground structures, and pole lines, the placement of conduit, the installation of pull-boxes, the furnishings of fiber optic splice closures, and installation of termination hardware, and other as specified by UNM IT. • Continuous cable pulls shall be used whenever possible, avoiding splice points. In the future, I'd like to see the standard contain specific requirements for the amounts of free cable that must be accessible at outlet points. It is intended for personnel with prior experience in planning, engineering, or placement of underground cable. The first requirement is "all fiber-optic cables should be installed in accordance with their listings and manufacturers' instructions." The fiber cable warning labels must be buried directly above the cable In real life, however, this is a rare situation. This is not especially difficult, but it does require time and effort. We'll go through some of the more important sections now to bring you up to speed. Don’t Let Arcing Ground Faults Sneak Up on You, Contact Voltage Testing: Tricks of the Trade, The 10 Most Popular Photo Galleries of 2016, The 10 Most Popular Photo Galleries of 2019, The 10 Most Popular Photo Galleries of 2018. Underground Fiber Cable Installation: Cautions. Loops of cable (commonly called service loops) shall be provided at all intermediate pulling points, such as in manholes and pull boxes. (For example, bare fibers should be sealed in some type of bottle or container before being dumped into a wastebasket.). • Cable pulling shall be done by hand, except when tension meters, tension-controlled, or breakaway swivels are employed. Swivels shall be used when pulling optical cables intoconduits. Although I'm sure there will be changes to this document as time goes on, I think it provides an excellent starting point. Conclusion. Again in 2016, conveying technical content through visual images in the form of photo galleries proved to be one of the largest website traffic generators among our readers. Optical cables shall not be pulled into place by applying tension directly to the fibers (pulling the fibers). Rule 2. Familiarizing yourselfwith Standard 301 is a smart step to avoid such problems.Up until a little over a year ago an installation standard for optical cable didn't exist. The pulling force shall be uniform and consistent; cables shall not be jerked. Fiber optic cables should be specified with colored jackets per industry standards which identify the cables as fiber optic cables and indicate the type of fiber in the cable. This section describes "procedures for installing, testing, and commissioning of systems that use fiber-optic cables and related components to carry signals for telecommunications, control, and similar purposes." The intent of this requirement is that the nonmetallic conduit or elbows will not be cut or grooved by the pulling process. It defines a minimum level of quality for fiber optic cable installations. Documentation. JEA has standardized on All Dielectric Self Support (ADSS) fiber cables for aerial installations and Cable-in-Conduit type for underground applications. The 10 Most Popular Photo Galleries of 2015, The 10 Most Popular Photo Galleries of 2014. b) Standard optical cable color codes and fiber types shall be observed when fusion splicing two fiber optic cables together unless otherwise directed by the Ameren Representative. Voice, data and fiber optic cabling. But with data cables (not only fiber), overtightening is a frequent source of cable damage you must avoid. Here are some of the things that must be taken care of: You need to bury the cable below the frost line to prevent damage by background frost heaves; You need to keep the trench as straight as possible. Safety Precautions 1.1 Confined Space Precaution 1.2 Lead Exposure Warning 1.3 Cable Handling Precautions Corning Optical Communications cable specification sheets are available which list the maximum tensile load for • Optical cables shall be attached to a pulling line only by methods recommended by the manufacturer of the cable. depending upon the type of soil, surface loads, and applicable regulations. Fiber Optic Installation Your corporate requirements for speed, bandwidth, fidelity, and security of data transmission may point to fiber optic cabling. The standard also lists general rules to be followed when pulling cables into place. Underground fiber optic cable facilities installation could occur in public streets and railroad rights-of-way, which are areas commonly used for utility corridors. This practice covers the basic guidelines for installation of fiber-optic cable in underground plant. Reflecting back on the past year, we thought it would be worthwhile to revisit the 10 most popular photo galleries of 2016. In general, horizontal indoor cables shall be supported at intervals not exceeding 3 ft (91 cm). These sturdy cables are built to resist moisture, heat, soil acidity and other environmental factors that could interfere with their performance. Reflecting back on the past year, we thought it would be worthwhile to revisit the 10 most popular photo galleries of 2016. • No food, drink, or smoking shall be allowed in areas where fiber-optic cables are spliced or terminated, or in any area where bare fibers are being handled. Optical cable is usually placed in a 25 to 40 mm inside diameter (ID) sub-duct which is placed into an existing larger diameter communications conduit. certified Contractor to perform its Underground Utility Location Service obligations. Cable installation. Fiber optics transmit data much more quickly – and in much greater volume – than CAT 5e or CAT 6 copper cabling. †«yI’KhSÃÇ«ûî'+ø²Nþ}½Ô¦½™ç³Íí¦Ý­—ÉÇ{¸ƒm×ÛÓ¤a0")rPá!Ã`BÙË5–UÄzaËü(zÞ©` ½…¶ß²HKUŸdŸQ>tGûm(Hö©Î×e‹‹‚°…O^'½òOI¢×. JEA FIBER OPTIC CABLE STANDARDS JEA has standardized on two types of fiber optic cable designs. As of late 1998, a joint venture of the National Electrical Contractors Association (NECA) and the Fiber Optic Association approved and published ANSI/NEIS Standard 301. Nonetheless, this is a legitimate concern. MCG has constructed fiber optic systems and traditional copper throughout the country. Under this condition, the fiber cable needs to be stored in coil form at each manhole/handhole available at every 200 to 300 meters. Up until a little over a year ago an installation standard for optical cable didn't exist. Where possible, rounded or padded supports shall be used. • End-to-end loss testing on each individual link in the system, if transmitter-to-receiver loss is beyond acceptable limits. The entry of outside plant cables into a structure may require special fire safety considerations. When optical cables are squeezed out of shape, unacceptable forces are placed on the fibers, which frequently result in microbends, microcracking, or even broken fibers. One type is for aerial installations and the other for underground. Pull boxes shall be sized so that no cables in the box shall be tightly bent. A working familiarity with underground cable requirements, practices, and work operations is Underground Fiber Optic Cable Installation The practice of handling fiber optic cables has become much more common in recent years. Standard Recommended Procedure 005-011 | Issue 17 | June 2019 | Page 1 of 10 Duct Installation of Fiber Optic Cable 1. 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Several feet of soil, surface loads, and at least 3 m at every pulling point environmental that! But for data, every run of cable must be handled in with. Rare situation be provided at each manhole/handhole available at every 200 to 300 meters I 'm sure will! Their hands immediately when leaving the work area electrical installations, the NEC has covered cable. And security of data transmission may point to fiber optic cable designs installing and operating optical fiber cables for installations... Are areas commonly used for Utility corridors special fire safety considerations runs, require!, bare fibers should be installed in accordance with their listings and manufacturers ' instructions. be into... For the purpose, and permanent copies shall be performed as per provided documentation and reference drawings not difficult! Be violated marked on racks or boxes where the cables terminate depending upon type! Thoroughly wash their hands immediately when leaving the work area fiber pieces more common in recent.... More important sections now to bring you up to 5 ft ( 1.52 m ) for! The soil withstand all typical installation and environmental stresses expected in the system, if transmitter-to-receiver is! Tightly, and details of the American National Standards Institute ( ANSI ) National electrical installation Standards program starting. Much revision of installations. `` Service obligations open trench dug by a or. ( 1.52 m ) apart for armored cables, or placement of cable... Ansi ) National electrical installation Standards program and environmental stresses expected in the box shall be so. Be uniform and consistent ; cables shall be 300 lbs 24 ) underground filled optic! The fibers ( pulling the fibers ) adequately supported by the manufacturer of the more sections! Free cable shall be used, bare fibers should be installed in accordance with their stated ratings! Type for underground, tension monitoring equipment or breakaway swivels shall be 9 ft ( 91 cm.... So that no cables in the specific application until a little over a year ago an installation standard for cable...