With the development of optical communication networks

the development of optical networks has evolved from core backbone networks to metropolitan area networks and access networks.Therefore

the amount and scope of optical cable laying is increasing

and the pipeline resources of optical cables are becoming more and more tense.There is an increasing demand for micro-cable with higher fiber densities.The density of such fiber optic cables is relatively high

and the cost of the optical cables is expensive.When damage occurs due to construction or the like

large losses are caused.Therefore

how to effectively locate the maintenance and fault handling of the laid optical cable is a big problem and challenge

so the optical cable need to have the function of being able to be detected and positioned to facilitate maintenance

improve efficiency

and reduce losses.This paper deals with a new type of detectable air-blowing micro-cable

which adopts the structure of glass fiber center strength member with embedded steel wire

we can effectively cope with the problem of detection and positioning in the troubleshooting of laying cable with the optical cable routing tester.In this paper

five different schemes are designed.The performance of air-blowing and detection of the micro-cable is verified from the aspects of the material of the embedded steel wire and the proportion of the steel wire

so as to determine the most excellent structural design of the detectable air-blowing micro-cable.