Optical fiber building cables

Details Optical fiber building cables Optical fiber building cables

1987-03-31

1989-04-04

Sikes, William L.

G02B 644

Patent

active

048180602

ABSTRACT:
A flame and smoke resistant optical fiber cable (20) having a relatively small diameter includes a core comprising a ribbon array or a plurality of individual fibers and a sheath system. The sheath system includes an impregnated fiber glass tape (35) which has been wrapped about the core. The tape is impregnated with a solution system which comprises a micaceous constituent, a fluoropolymer constituent and a lubricant such as silicone. The impregnated system provides the tape and hence the cable with unexpectedly superior fire retardant and smoke resistance properties so that the cable is suitable for plenum and riser use. Advantageously, the thickness of the tape impregnated with such a system is relatively thin which is helpful in maintaining a relatively small diameter for the cable. An all dielectric strength member system is disposed between the tape and a plastic jacket (37).

REFERENCES:
patent: 4150249 (1979-04-01), Pedersen
patent: 4235511 (1980-11-01), Yonechi
patent: 4653851 (1987-03-01), Pedersen et al.

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