1.雙線的保險作用：

1. The insurance function of dual lines:

兩條單線一起使用和“雙線結構設計”的技術性能區別，兩條單線同時使用時易纏繞產生斷裂，兩條單線輔設后無法達到相等長度和平行使用，抗拉的受力點分布不均勻，會導致兩條單線斷裂的先后不*，抗拉強度只能體現一根線的強度。“雙線結構設計”，已經將兩支線粘在一起，由于結構的變化，其技術性能形成*，可以相等長度輔設、平行使用，抗拉的受力點均勻分布，形成統一的抗拉強度技術指標，突破了現有示蹤線產品抗拉強度低的影響。

The technical performance difference between using two single lines together and the "double line structure design" is that when two single lines are used at the same time, they are prone to entanglement and breakage. When two single lines are auxiliary, they cannot achieve equal length and parallel use, and the distribution of tensile force points is uneven, which can lead to uneven order of fracture of the two single lines. The tensile strength can only reflect the strength of one line. The "double line structure design" has already glued two branch lines together. Due to structural changes, its technical performance has formed *, which can be used in equal lengths and parallel. The tensile force points are evenly distributed, forming a unified tensile strength technical index, breaking through the influence of low tensile strength of existing tracer line products.

2.便于工地簡單檢測判斷示蹤線鋪設的質量。

2. Convenient for simple on-site inspection and judgment of the quality of tracer line laying.

埋地PE管LYA-SZ3示蹤線連接方式

Connection method of LYA-SZ3 tracer line for buried PE pipes

LYA-SZ3示蹤線有的防護接頭，用于線與線之間的連接，接頭具備防水

The LYA-SZ3 tracer line has protective joints for connecting lines, which are waterproof

防腐的密閉腔體，將示蹤線裸露線頭放置于密閉腔體內，從而保護裸露的示蹤線頭無法被腐蝕；接頭由PE材料制造，本身具備抗腐、抗老化的能力。

A corrosion-resistant sealed chamber, where the exposed tracer wire head is placed inside the sealed chamber to protect the exposed tracer wire head from corrosion; The joint is made of PE material and has the ability of corrosion resistance and aging resistance.

薄膜示蹤線和電線示蹤線的連接方式：將兩個線頭擰在一起，一般選用熱收縮管或防水膠布做為接頭的處理，防腐及防水效果根據熱縮管的材質及施工效果決定。

The connection method of thin film tracing wire and wire tracing wire: Twist the two wire ends together, and generally use heat shrink tubing or waterproof tape as the joint treatment. The anti-corrosion and waterproof effects are determined by the material and construction effect of the heat shrink tubing.

埋地PE管LYA-SZ3示蹤線探測性

Detection of buried PE pipe LYA-SZ3 tracer line

LYA-SZ3示蹤線：常規鋪設，埋深≤1.8米時，有效探測距離在1000米以上；非開挖鋪設，埋深≤4米時，有效探測距離在500米；非開挖鋪設，埋深≤7米時，有效探測距離在300米。

LYA-SZ3 tracer line: Conventional laying, effective detection distance above 1000 meters when buried depth ≤ 1.8 meters; When laid without excavation and buried at a depth of ≤ 4 meters, the effective detection distance is 500 meters; When laid without excavation and buried at a depth of ≤ 7 meters, the effective detection distance is 300 meters.

薄膜示蹤線：常規鋪設，埋深≤1.8米時，有效探測距離在150米內；不能用于非開挖鋪設。

Thin film tracer line: Conventional laying, effective detection distance within 150 meters when buried depth ≤ 1.8 meters; Cannot be used for non excavation laying.

電線示蹤線和LYA-SZ3類同，但是非開挖鋪設要用到截面積在6平方以上的電線，成本造價不適宜。

The wire tracing line is similar to LYA-SZ3, but non excavation laying requires wires with a cross-sectional area of more than 6 square meters, which is not cost-effective.

埋地PE管LYA-SZ3示蹤線非開挖穿越的應用

Application of Buried PE Pipe LYA-SZ3 Tracer Line in Non Excavation Crossing

將示蹤線捆綁在設備托頭的鋼絲環上，并用鐵絲或卡環再次緊固。

Bundle the tracer wire onto the steel wire ring of the equipment support head and tighten it again with iron wire or snap ring.

每隔5-8米的距離，用膠帶將示蹤線和PE管固定。

Fix the tracer line and PE pipe with tape every 5-8 meters.

頂管完成后，將示蹤線一端的兩條線連接在一起，用萬用表測量示蹤線的另一端看是否有通路。

After the pipe jacking is completed, connect the two wires at one end of the tracer line together, and use a multimeter to measure the other end of the tracer line to see if there is a pathway.