Single-tube plenum ribbon cable
First Claim
Patent Images
1. An optical fiber cable, comprising:
- a core comprising at least one optical fiber;
a core tube surrounding said core, said core tube comprising a non-halogenated polyolefin-based polymer material;
a jacket surrounding said core tube, said jacket being formed of chlorinated plastic material; and
,a plurality of dielectric strength members which are disposed between said core tube and said jacket, said cable having a maximum flame propagation of 5.0 feet or less, a peak optical density of 0.50 or less, and an average optical density of 0.15 or less, and each said optical fiber having a maximum change in attenuation of 0.20 dB or less when placed on a mandrel having a diameter of 254 mm at temperatures of -20°
C. and +50°
C., subjected to impact energy of 2.94 N m, subjected to a compressive load of 10 N/mm, or exposed to temperatures of -20°
C. to +70°
C.
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Abstract
An optical fiber cable suitable for use in building plenums includes a core comprising at least one optical fiber; a core tube formed of a non-halogenated polyolefin-based polymer material surrounding the core; a jacket formed of chlorinated plastic material surrounding said core tube; and a plurality of dielectric strength members which are disposed between said core tube and said jacket, said cable being capable of meeting all test criteria set out in UL Standard 910.
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Citations
20 Claims
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1. An optical fiber cable, comprising:
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a core comprising at least one optical fiber; a core tube surrounding said core, said core tube comprising a non-halogenated polyolefin-based polymer material; a jacket surrounding said core tube, said jacket being formed of chlorinated plastic material; and
,a plurality of dielectric strength members which are disposed between said core tube and said jacket, said cable having a maximum flame propagation of 5.0 feet or less, a peak optical density of 0.50 or less, and an average optical density of 0.15 or less, and each said optical fiber having a maximum change in attenuation of 0.20 dB or less when placed on a mandrel having a diameter of 254 mm at temperatures of -20°
C. and +50°
C., subjected to impact energy of 2.94 N m, subjected to a compressive load of 10 N/mm, or exposed to temperatures of -20°
C. to +70°
C. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. An optical fiber cable, comprising:
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a core comprising at least one optical fiber; a core tube surrounding said core, said core tube comprising a nonhalogenated polyolefin-based polymer material; a jacket surrounding said core tube, said jacket being formed of chlorinated plastic material; and
,a plurality of dielectric strength members which are disposed between said core tube and said jacket in the absence of any flame-retardant tape, said cable having a maximum flame propagation of 5.0 feet or less, a peak optical density of 0.50 or less, and an average optical density of 0.15 or less. - View Dependent Claims (9, 10, 11, 12, 13, 14)
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15. An optical fiber cable, comprising:
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a core comprising at least one optical fiber ribbon; a core tube surrounding said core, said core tube comprising a nonhalogenated polyolefin-based polymer material; a jacket surrounding said core tube, said jacket being formed of chlorinated plastic material; and
,a plurality of dielectric strength members which are disposed between said core tube and said jacket, said cable having a maximum flame propagation of 5.0 feet or less, a peak optical density of 0.50 or less, and an average optical density of 0.15 or less, and each said optical fiber having a maximum change in attenuation of 0.20 dB or less when placed on a mandrel having a diameter of 254 mm at temperatures of -20°
C. and +50°
C., subjected to impact energy of 2.94 N m, subjected to a compressive load of 10 N/mm, or exposed to temperatures of -20°
C. to +70°
C. - View Dependent Claims (16, 17)
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18. An optical fiber cable, comprising:
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a core comprising at least one optical fiber ribbon; a core tube surrounding said core, said core tube comprising a nonhalogenated polyolefin-based polymer material; a jacket surrounding said core tube, said jacket being formed of chlorinated plastic material; and
,a plurality of dielectric strength members which are disposed between said core tube and said jacket in the absence of any flame-retardant tape, said cable having a maximum flame propagation of 5.0 feet or less, a peak optical density of 0.50 or less, and an average optical density of 0.15 or less. - View Dependent Claims (19, 20)
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Specification
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Current AssigneeSiecor Technology, Inc. (Corning Incorporated)
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Original AssigneeSiecor Corporation (Corning Incorporated)
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InventorsNave, Samuel D.
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Primary Examiner(s)Palmer, Phan T. H.
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Application NumberUS08/792,814Time in Patent Office460 DaysField of Search385/100-115, 174/70 R, 174/121 R, 174/121 AUS Class Current385/113CPC Class CodesG02B 6/4403 with ribbon structure G02B6...G02B 6/4411 Matrix structureG02B 6/4432 with fibre reinforcementsG02B 6/4436 Heat resistantG02B 6/4486 Protective covering
