May, 2017 Setting the Standard for
Tray-Rated Fiber Optic Cable Continued from previous page
tic (PVC or polyurethane) to cables with dual jackets, one of which is in- terlocked armor. Within these outer jackets, fiber
optic components vary from individ- ual to multi-fiber subunits. Miller says the new bench-
marks are designed to eliminate con- fusion and misconceptions about is- sues such as outer jacketing. He points to the example of a dual-jack- et with interlocked armor. While this may sound like the ideal option, the crush rating can be lower than for a non-armored product. This is, in part, due to the fact
that any crimps or indents in the in- terlocked armor caused during in- stallation can leave a permanent spot for ongoing attenuation issues. In this case, a non-armored product may provide greater durability at a lower cost per foot. Also affecting durability is how
the fibers are contained within the jacketing. For typical outdoor or long-run distribution cable, loose- tube, gel-filled construction is popu- lar and low in cost. In this type of cable, the fibers are contained in small, rigid tubes, and generally flooded with gel or a powder as a water-blocking agent. Although acceptable for use in
more benign environments, loose- tube cabling tends to be relatively stiff and delivers a lower crush rat- ing, bend radius, and less overall pro- tection of fiber strands than more ruggedized options. In addition, with this type of cable, the gel or powder
must first be cleaned off before termi- nations or splices are made. However, some manufacturers
offer ruggedized, tight-buffered alter- natives to meet the requirements of the harshest environments. As op- posed to loose-tube designs, which only have one thin coating surround- ing each optical fiber, ruggedized tight-buffered fibers have two. These options also provide for
direct termination of fibers, which re- duces the mess, expense of installa- tion and eliminates steps and mate- rials required. In the case of Optical Cable Cor-
poration products, ruggedness is in- creased through the use of a pres- sure-extruded or tightly-bound outer jacket that firmly binds all the fibers together so that the cable moves as a single, solid unit. This core-locked outer jacket is
available on the company’s FOTC family of products, which include break-out, riser-rated, multiple sub- cable, high-density, and high fiber count options. “As an industry, it is important
we provide consulting engineers, con- tractors, and installers with options that are third-party-verified and meet defined standards,” says Miller. “That way, every cable will meet, or exceed, the performance require- ments if it is labeled tray-rated.” Contact: Optical Cable Corp.,
5290 Concourse Drive, Roanoke, VA 24019 % 800-622-7711 fax: 540-265-0724 E-mail:
info@occfiber.com Web:
www.occfiber.com r
1 3/2/17 1:02 PM
AC-DC DC-DC
INVERTERS CHARGERS DESKTOP
WALL MOUNT
COMPETITIVE COST
U.S.STOCKING
SCHEDULED ORDERS CTPAT CERTIFIED
WORLDWIDE SAFETY MEDICAL 3RD EDITION
www.total-power.com
Don’t See What You Need Online? Call Us, We Can Find It!
877-646-0900 LED DRIVERS
CUSTOM BUILDS VALUE ADDED MODIFIED STD ENERGY STAR
RoHS COMPLIANT
www.us-tech.com
Page 41
solidstateinc.com
Technical Support 24-Hour Shipment
Extensive Product Offering Just-In-Time Delivery
Franchised Distributor Value-Added Service
800.631.2075
Page 1 |
Page 2 |
Page 3 |
Page 4 |
Page 5 |
Page 6 |
Page 7 |
Page 8 |
Page 9 |
Page 10 |
Page 11 |
Page 12 |
Page 13 |
Page 14 |
Page 15 |
Page 16 |
Page 17 |
Page 18 |
Page 19 |
Page 20 |
Page 21 |
Page 22 |
Page 23 |
Page 24 |
Page 25 |
Page 26 |
Page 27 |
Page 28 |
Page 29 |
Page 30 |
Page 31 |
Page 32 |
Page 33 |
Page 34 |
Page 35 |
Page 36 |
Page 37 |
Page 38 |
Page 39 |
Page 40 |
Page 41 |
Page 42 |
Page 43 |
Page 44 |
Page 45 |
Page 46 |
Page 47 |
Page 48 |
Page 49 |
Page 50 |
Page 51 |
Page 52 |
Page 53 |
Page 54 |
Page 55 |
Page 56 |
Page 57 |
Page 58 |
Page 59 |
Page 60 |
Page 61 |
Page 62 |
Page 63 |
Page 64 |
Page 65 |
Page 66 |
Page 67 |
Page 68 |
Page 69 |
Page 70 |
Page 71 |
Page 72 |
Page 73 |
Page 74 |
Page 75 |
Page 76 |
Page 77 |
Page 78 |
Page 79 |
Page 80 |
Page 81 |
Page 82 |
Page 83 |
Page 84 |
Page 85 |
Page 86 |
Page 87 |
Page 88 |
Page 89 |
Page 90 |
Page 91 |
Page 92 |
Page 93 |
Page 94 |
Page 95 |
Page 96 |
Page 97 |
Page 98 |
Page 99 |
Page 100 |
Page 101 |
Page 102 |
Page 103 |
Page 104 |
Page 105 |
Page 106 |
Page 107 |
Page 108 |
Page 109 |
Page 110 |
Page 111 |
Page 112 |
Page 113 |
Page 114 |
Page 115 |
Page 116
