Protection pipe for underground cable

• Main Author: XU HENGYANG
• Format: Patent
• Language: Chinese; English
• Published: 24.05.2017
• Subjects: CHEMISTRY; COMPOSITIONS BASED THEREON; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER; ELECTRICITY; GENERATION; INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINEDOPTICAL AND ELECTRIC CABLES OR LINES; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS

The invention discloses a protection pipe for an underground cable. The protection pipe comprises a resin layer, a support layer and a corrosion resistant layer which are successively arranged from the inside out, wherein the resin layer and the support layer are fixedly connected through a binding agent, the support layer and the corrosion resistant layer are fixedly connected through the binding agent, the resin layer comprises 5%-10% of PVC resin, 85%-90% of CPVC resin, 5%-10% of light calcium carbonate, 1%-5% of a compound stabilizer, 0.4%-0.5% of paraffin, and 1%-4% of glass fiber, the support layer is stainless steel, the thickness of the support layer is 0.1mm-1mm, the corrosion resistant layer is PTFE, and the thickness of the corrosion resistant layer is 0.01mm-1mm. The technical scheme disclosed by the invention not only improves the supporting strength of the protection pipe for the underground cable, but also improves the corrosion resistant performance of the outer surface of the protection pipe.