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