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underground fiber optic cable installation standards

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

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underground fiber optic cable installation standards

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