The sc65 tube can wear several 48-core optical cables.

　　Regarding the issue of how many 48-core optical cables the SC65 tube can wear, it mainly depends on factors such as the outer diameter of the optical cable, the inner diameter of the tube, and the utilization rate of the tube hole. The following is a detailed analysis of this problem:

　　First, the matching between the outer diameter of the optical cable and the inner diameter of the pipe

　　The outer diameter of a 48-core cable is usually between 8.3mm and 11.2mm (depending on the type and structure of the cable).

　　The inner diameter of the pipe: The inner diameter of the SC65 pipe is 65mm (the "65" here refers to the outer diameter of the pipe, but the inner diameter will be slightly SMaller, and the specific inner diameter needs to be determined according to the wall thickness of the pipe). However, in practical applications, the effective inner diameter may be further reduced due to factors such as unevenness and attachments in the inner wall of the pipe.

　　Consideration of tube hole utilization rate

　　Number of optical cables laid in single-hole tubes: According to the requirements of the "Code for Engineering Design of Communication Lines", when laying optical cables in single-hole tubes, multiple plastic sub-tubes should be laid to improve the utilization rate of the tube holes. However, even if sub-tubes are used, factors such as the gap between the optical cables and the bending radius need to be considered to ensure that the optical cables can be passed through smoothly and will not squeeze each other.

　　Compact cable applications: Compact cables usually have a smaller cross-sectional area than ordinary cables, so more cables can be placed in the same tube. However, the number of cores in compact cables is usually larger (e.g. more than 96 cores), and the question asks about 48-core cables, so this is not directly applicable here.

　　III. Estimation of the actual number of wears

　　Theoretical estimation: Without considering factors such as the sub-tube, the bending radius of the optical cable, and the uneven inner wall of the tube, the inner diameter of the SC65 tube can be simply divided by the outer diameter of the optical cable to estimate the number of optical cables that can be worn. However, the results obtained by this method are often too large, because the actual wear and discharge process is limited by many factors.

　　Practical experience: According to practical experience, due to factors such as the gap between the optical cables, the requirement of bending radius, and the uneven inner wall of the tube, the number of 48-core optical cables that can be worn in the SC65 tube is usually limited. The specific number needs to be determined according to the actual outer diameter of the optical cable, the inner diameter of the tube, and the actual situation during the wear and discharge process.

　　IV. Conclusions and recommendations

　　Conclusion: Due to the influence of many factors such as the outer diameter of the optical cable, the inner diameter of the tube and the utilization rate of the tube hole, it is impossible to directly give the exact answer that the SC65 tube can wear several 48-core optical cables.

　　Suggestion: In actual operation, it is recommended to determine the number of optical cables that can be worn according to the actual outer diameter of the optical cable, the inner diameter of the pipe, and the actual situation during the wear and discharge process. At the same time, you can consider using sub-pipes to improve the utilization rate of pipe holes, and pay attention to the requirements of the gap and bending radius between the optical cables.

　　In summary, the problem that the SC65 tube can wear several 48-core optical cables needs to be determined by considering multiple factors. In practice, it is recommended to estimate and experiment according to the specific situation to ensure that the optical cables can be worn smoothly and will not squeeze each other.