Small-span self-supporting overhead anti-biting flame-retardant optical cable

The invention discloses a small-span self-supporting overhead anti-bite flame-retardant optical cable which is composed of optical fibers, dry-type water-blocking yarns, a central flame-retardant loose tube, a water-blocking tape, an inner wrapping tape, an armor layer, an outer wrapping tape and a flame-retardant protective sleeve, the optical fibers and the dry-type water-blocking yarns are arranged in the central flame-retardant loose tube, the water-blocking tape wraps the central flame-retardant loose tube, the inner wrapping tape is arranged in the central flame-retardant loose tube, and the outer wrapping tape is arranged in the armor layer. The water-blocking tape is wrapped by the inner wrapping tape, the inner wrapping tape is wrapped by the armor layer, the armor layer is wrapped by the outer wrapping tape, the outer wrapping tape is wrapped by the flame-retardant protective sleeve, and the armor layer is formed by twisting a plurality of fan-shaped FRP strips. According to the invention, a light s