In order to resist the axial stress that may occur during laying and use of outdoor optical cables, improve the mechanical strength of optical cables, and ensure that the
Work under the action of the stress, so the reinforcement must be selected to give the optical cable good mechanical properties such as tensile, flattening and bending.
Glass fiber yarns can be divided into coated glass fiber yarns and impregnated glass fiber yarns. The coated glass fiber yarns can be divided into water-blocking coated glass fiber yarns and heat-resistant glass fiber yarns.
Melt type coated glass fiber yarn and conventional type coated glass fiber yarn.
Water-blocking coated glass fiber yarn is a glass fiber yarn that contains water blocking substances in the coating layer; hot-melt coated glass fiber yarn is a coating layer that is heated during production
After it can be melted, several glass fiber yarns can be glued together, thereby protecting the glass fiber yarn of the optical cable; the conventional coated glass fiber yarn does not contain
Ordinary coated glass fiber yarn with the above special functions. The impregnated glass fiber yarn has the characteristics of easy dispersion and softness while protecting the glass fiber precursor through the dipping process.

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