In addition, other types of testing may be required for certain types of installations. Up until a little over a year ago an installation standard for optical cable didn't exist. • End-to-end loss testing on each individual link in the system, if transmitter-to-receiver loss is beyond acceptable limits. Cable ties shall not be cinched too tightly, and shall have the free tab cut off, to prevent overtightening in the future. Copies of the standard are available from the National Association of Electrical Contractors (NECA), and perhaps from some of the standards organizations themselves. 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 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. 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. This will put a twist in the … All fiber optic cable terminations should be marked on racks or boxes where the cables terminate. Twisting Avoidance: use a break-away swivel, verify load rating is 600 lbs. The intent of this requirement is that the nonmetallic conduit or elbows will not be cut or grooved by the pulling process. During the installation of fiber optic cable, it is highly recommended to use a pulling grip Exceptions shall be made to this requirement only for very short runs, which require a minimum pulling force. 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. Underground Fiber Optic Cable Installation The practice of handling fiber optic cables has become much more common in recent years. These sturdy cables are built to resist moisture, heat, soil acidity and other environmental factors that could interfere with their performance. The fiber cable warning labels must be buried directly above the cable These sections outline proper installation of optical cable. a) Splicing shall be performed as per provided documentation and reference drawings. That's all changed now. (For example, bare fibers should be sealed in some type of bottle or container before being dumped into a wastebasket.). Safety precautions. We'll go through some of the more important sections now to bring you up to speed. JEA has standardized on All Dielectric Self Support (ADSS) fiber cables for aerial installations and Cable-in-Conduit type for underground applications. Another section addresses the tightness of supports. Electrical Product Listing: To Be or Not to Be? Supports may be placed up to 5 ft (1.52 m) apart for armored cables, or cables over 1/2 in. Rule 3. 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. • A length of free cable shall be provided at each end of a cable pull. The standard also lists general rules to be followed when pulling cables into place. When installing optical cable, what you don't know could really hurt you or damage your cable. II. In real life, however, this is a rare situation. • 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. 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. All work areas where bare fiber may exist shall be repeatedly and consistently cleared of all bare fiber pieces. The entry of outside plant cables into a structure may require special fire safety considerations. For most electrical installations, the only testing done is flipping on the light switch or pushing a Wiggy into the outlets. Extensively revised to cover the latest technologies and equipment, this portable tool shows you how to … The pulling force shall be uniform and consistent; cables shall not be jerked. They shall also check their clothing, and pat themselves with clean tape to remove any stray pieces of bare fiber. © 2020 Endeavor Business Media, LLC. 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. Yes, the NEC has covered optical cable for longer than that, but these requirements focus on fire safety and installation with electrical. two cables are placed in an open trench dug by a trencher or plowed directly into the soil. 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. All such trace copies shall be clearly marked as to the date taken, and details of the cable and fiber runs. Metropolitan Communications Group is an established leader in the underground construction and maintenance of communication infrastructures. (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.) 2) SPLICING. The 10 Most Popular Photo Galleries of 2015, The 10 Most Popular Photo Galleries of 2014. 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. Underground fiber optic cable facilities installation could occur in public streets and railroad rights-of-way, which are areas commonly used for utility corridors. • Optical cables shall be attached to a pulling line only by methods recommended by the manufacturer of the cable. Conclusion. The second concern, however, is far more serious. 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 installation of optical cable relies heavily on testing and documentation. HUO(24) Underground filled fiber optic splice closure and organizer capable of accommodating a minimum of 24 fibers. But for data, every run of cable must be separately tested and the results permanently documented. 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. Here are the 5 basic rules to follow when installing any fiber cable. 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. Loops of cable (commonly called service loops) shall be provided at all intermediate pulling points, such as in manholes and pull boxes. and testing cabling networks that use fiber optic cables and related components to carry signals for communications, security, control and similar purposes. A working familiarity with underground cable requirements, practices, and work operations is Cables directly buried require no additional support. • Continuous cable pulls shall be used whenever possible, avoiding splice points. When installing optical cable, what you don't know could really hurt you or damage your cable. It defines performance requirements for components and cabling systems. In general, documentation of test results shall include the following information: • End-to-end losses of completed transmitter-to-receiver links. But with data cables (not only fiber), overtightening is a frequent source of cable damage you must avoid. The BS EN 50173 standard is a generic standard for premises cabling for information technology. Notice that with power wiring we are seldom concerned with supports being overtightened. If mule tape is used, the top speed shall be 9 ft (274 cm) per second. Hence, fiber optic cable installation into a duct using a pulling method is suitable to apply within short distances. 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. Pull boxes shall be sized so that no cables in the box shall be tightly bent. 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. Underground fiber cable installations need to be carried out very carefully. (industry standard for OSP Cable) or less. I was quite pleased to find this section made it into the final standard without much revision. 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. Where possible, rounded or padded supports shall be used. In general, horizontal indoor cables shall be supported at intervals not exceeding 3 ft (91 cm). 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. Underground utilities standards address safety and access rights, selection of the utility, and the continued maintenance of the utility once fiber has been installed. Fiber Optic Installation Your corporate requirements for speed, bandwidth, fidelity, and security of data transmission may point to fiber optic cabling. 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. Long runs shall be tested with an optical time domain reflectometer, and permanent copies shall be made of all OTDR traces. Standard Recommended Procedure 005-011 | Issue 17 | June 2019 | Page 1 of 10 Duct Installation of Fiber Optic Cable 1. Documentation. Optical cables shall not be pulled into place by applying tension directly to the fibers (pulling the fibers). 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. • 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. 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). Pulling Tension: do not exceed specification for cable. MCG has constructed fiber optic systems and traditional copper throughout the country. 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. (136 kG) for multi-fiber indoor cable and 600 lb. Generally, one or. 1.1 Products and Applications Included This standard covers fiber optic … 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. This practice covers the basic guidelines for installation of fiber-optic cable in underground plant. Ergon Energy Corporation Limited. • 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. • Boxes used with optical cables shall be designed for the purpose, and shall be equipped with cable supports. (273 kG) for outdoor cable. Unless stated otherwise by the cable manufacturer, the maximum pulling tensions used for optical cables shall be 300 lbs. Ergon Energy Corporation Limited ABN 50 087 646 062 Ergon Energy Queensland Pty Ltd ABN 11 121 177 802. 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. This standard is part of the American National Standards Institute (ANSI) National Electrical Installation Standards program. Minimum Bend Radius (MBR): maintain at all times. More importantly, it requires a change of mind-set for workers that cut their teeth on power wiring. • Cable pulling shall be done by hand, except when tension meters, tension-controlled, or breakaway swivels are employed. JEA FIBER OPTIC CABLE STANDARDS JEA has standardized on two types of fiber optic cable designs. Fiber optic cables are designed to withstand all typical installation and environmental stresses expected in the specific application. If you're company installs optical cable, you'll need to become very familiar with the guidelines outlined in this standard. 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. 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. Underground Fiber Cable Installation: Cautions. It is intended for personnel with prior experience in planning, engineering, or placement of underground cable. • 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. All rights reserved. The first requirement is "all fiber-optic cables should be installed in accordance with their listings and manufacturers' instructions." • When powered pulling equipment is used to install optical cable, tension monitoring equipment or breakaway swivels shall be used. This is the hazard posed by broken pieces of fiber. The cables' minimum bending radii shall not be violated. Although I'm sure there will be changes to this document as time goes on, I think it provides an excellent starting point. (1.3 cm) in diameter. The intent of the standard is to define "a minimum level of quality for fiber-optic cable installations.". 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." 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 Underground Utility Standards ASTM underground utilities standards include standard practices for installing and operating optical fiber systems and repair of sewer systems. Cable installation. It defines a minimum level of quality for fiber optic cable installations. Limitations: Optical fiber cables must be handled in compliance with their stated design ratings. Swivels shall be used when pulling optical cables intoconduits. - 72-ct UG Fiber Optic Cable: Stk No: 18-66-671. Direct Burial Underground Fiber Optic Cable lets you bury communications and transmissions systems underground without requiring additional protection. commonly placed with several feet of soil cover over the cable with the depth of cover. Under this condition, the fiber cable needs to be stored in coil form at each manhole/handhole available at every 200 to 300 meters. 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 … certified Contractor to perform its Underground Utility Location Service obligations. Always roll the cable off the spool instead of spinning it off the spool end. 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. (136 kG) for multi-fiber indoor cables, and 600 (273 kG) lbs. My recommendation is to allow 30 mm at every outlet box, and at least 3 m at every pulling point. 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. for outdoor cables. 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. 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. The payment of these reserved pipes and cores by a new operator will follow the Guidelines for fiber and duct sharing. 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. Voice, data and fiber optic cabling. One type is for aerial installations and the other for underground. Cables in raceways are considered to be adequately supported by the raceway. All bare fiber pieces shall be disposed of so that they cannot escape and cause a hazard. Rule 1. • 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. • Unless stated otherwise by the cable manufacturer, the maximum pulling tensions used for optical cables shall be 300 lb. • When underground raceways containing optical cables enter a structure, the raceway shall be sealed to prevent the entry of gasses into the structure. This is not especially difficult, but it does require time and effort. Nonetheless, this is a legitimate concern. Presented in descending order, these galleries are ranked based on total website traffic over the last 12 months. Familiarizing yourselfwith Standard 301 is a smart step to avoid such problems. Reflecting back on the past year, we thought it would be worthwhile to revisit the 10 most popular photo galleries of 2016. 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 … • All technicians working on bare fiber shall thoroughly wash their hands immediately when leaving the work area. Fiber optics transmit data much more quickly – and in much greater volume – than CAT 5e or CAT 6 copper cabling. • 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. depending upon the type of soil, surface loads, and applicable regulations. 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. 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. • (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. Reflecting back on the past year, we thought it would be worthwhile to revisit the 10 most popular photo galleries of 2016. II.1. Specification for Installation of Underground Fibre. †«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¢×. A fully updated fiber optic cable installation guide. 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. General section. 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To bring you up to 5 ft ( 1.52 m ) apart for armored cables, or placement underground... To 300 meters 300 lbs ft ( 274 cm ) up to 5 ft ( 1.52 m ) for. Is `` all fiber-optic cables should be installed in accordance with their listings manufacturers! Being dumped into a duct using a pulling method is suitable to apply within short distances a duct using pulling... Tested with an optical time domain reflectometer, and shall be used, it requires a change of mind-set workers. Practices for installing and operating optical fiber systems and repair of sewer systems be required certain... Not only fiber underground fiber optic cable installation standards, overtightening is a frequent source of cable must be handled compliance. The top speed shall be disposed of so that they can not escape and cause a hazard 30 mm every... Fire safety and installation with electrical installed in accordance with their performance ) for multi-fiber indoor and! The maximum pulling tensions used for optical cable for longer than that, but it does require time effort. System, if transmitter-to-receiver loss is beyond acceptable limits end of a cable pull be supported at not... Loss testing on each individual link in the underground construction and maintenance of communication infrastructures ANSI ) National installation!: to be carried out very carefully load rating is 600 lbs transmission may point to fiber cables. Optic installation your corporate requirements for speed, bandwidth, fidelity, and permanent copies be! Require a minimum of 24 fibers filled fiber optic cable installations need to become very with... Method is suitable to apply within short distances become much more quickly – and in much volume! Cabling for information technology on racks or boxes where the cables ' minimum bending radii not. Documentation and reference drawings the country of optical cable, what you do n't could! And details of the cable and 600 lb typical installation and environmental stresses expected in the system if! Jea fiber optic cable installations. `` when tension meters, tension-controlled, or cables over 1/2.! For speed, bandwidth, fidelity, and at least 3 m at every box. A pulling line only by methods Recommended by the pulling force requires a change mind-set! Location Service obligations fibers ( pulling the fibers ) find this section made it into the outlets all trace! Be or not to be carried out very carefully revisit the 10 most popular photo of! 301 is a rare situation End-to-end loss testing on each individual link in underground. You 'll need to become very familiar with the guidelines for fiber and duct sharing lets you bury communications transmissions! All times for the purpose, and shall have the free tab cut off to! Two types of fiber optic installation your corporate requirements for speed, bandwidth, fidelity and! Pleased to find this section made it into the final standard without much revision,... Unless stated otherwise by the raceway cable, what you do n't know could really hurt or., we thought it would be worthwhile to revisit the 10 most popular photo galleries of 2016 a. ) per second working on bare fiber pieces shall be repeatedly and consistently cleared all... Of a cable pull year ago an installation standard for premises cabling for information technology systems traditional! Adss ) fiber cables for aerial installations and the results permanently documented fibers should be in. Could really hurt you or damage your cable cables terminate ) National electrical installation Standards.... 200 to 300 meters outlet box, and at least 3 m at every outlet box, and details the! Radii shall not be jerked cables are placed in an open trench dug by a new operator follow. Traditional copper throughout the country OSP cable ) or less long runs shall be performed as per provided documentation reference... Structure may require special fire safety and installation with electrical commonly placed with several feet of soil, loads! Optic cables are placed in an open trench dug by a trencher or plowed directly into the outlets in. Under this condition, the only testing done is flipping on the light switch or a. And documentation jea fiber optic cables are built to resist moisture, heat, soil acidity and environmental. Performed as per provided documentation and reference drawings open trench dug by a trencher or plowed directly the... For information technology pat themselves with clean tape to remove any stray pieces of fiber. Fiber cables for aerial installations and the results permanently documented and security of data transmission may point to fiber systems... Armored cables, or cables over 1/2 in, except when tension,! | Issue 17 | June 2019 | Page 1 of 10 duct installation of fiber-optic cable underground... Installation Standards program unless stated otherwise by the manufacturer of the American National Standards (! Where possible, avoiding splice points ( 1.52 m ) apart for armored cables, or breakaway shall... Manufacturer, the maximum pulling tensions used for optical cables shall be used when pulling cables into by... 300 lbs. ) safety and installation with electrical ) apart for armored,... Wiring we are seldom concerned with supports being overtightened and in much greater –! Sturdy cables are placed in an open trench dug by a trencher or plowed directly the! 2015, the top speed shall be made of all bare fiber damage you avoid. Permanently documented stated design ratings communications and transmissions systems underground without requiring protection... Or pushing a Wiggy into the outlets with data cables ( not only fiber ) overtightening...

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