72 FIBER OPTIC CABLE SHALL BE A SINGLE MODE, CONCENTRIC, NONMETALLIC, ADSS SELFSUPPORTING, NO MESSENGER; DESIGNED FOR OUTDOOR INSTALLATION ON UTILITY POLES IN A NATIONAL ELECTRIC SAFETY CODE (NESC) HEAVY LOADING DISTRICT. THE CABLE SHALL CONTAIN SINGLE MODE OPTICAL FIBERS INSIDE OF LOOSE TUBE BUFFERS. THE FIBERS SHALL BE COLOR CODED AND THE BUFFERS SHALL BE COLOR CODED TO AID IN FIBER IDENTIFICATION. THE CABLE SHALL BE CONSTRUCTED WITH MATCHED CLAD FIBER. THE CABLE SHALL BE DESIGNED SO THAT THE OPTICAL FIBERS SEE ZERO FIBER STRAIN AND MEET THE FOLLOWING MINIMUM CRITERIA: FIBER COUNT 72 MAXIMUM CABLE ATTENUATION @1310 NM .40 DB/KM @1550 NM .30 DB/KM MAXIMUM SPAN LENGTH 300 FT MINIMUM NUMBER OF JACKETS 2 CABLE DIAMETER .526-.549 MINIMUM CONTINUOUS REEL LENGTH 25000 CENTRAL STRENGTH MEMBER MUST BE A DIELECTRIC GLAXX/EPOXY COMPOSITE ROD. THE CABLE SHOULD CONSIST OF LOOSE BUFFER TUBES STRANDED AROUND A CENTRAL MEMBER. CABLE SHALL HAVE TWO JACKETS CONSISTING OF LINEAR LOW DENSITY POLYETHYLENE. CABLE SHALL BE MARKED WITH FOOTAGE ON EXTERIOR JACKET.
