FIELD: construction engineering; repair of pipe lines. SUBSTANCE: multi-layer protection includes band-type coat made from elasto-flexible tape spiral applied on pipe line. This spiral is multi-layer at circumferential position of warp fibers and their volumetric ratio ranges from 1:1 to 3:1. Volumetric ratio of layer of fabric and polymer binder ranges from 1:0.37 to 1: 0.57; polymer binder is made in form of composition from epoxy resin, 70% and phenol-formaldehyde lacquer, 30%. Tape spiral may be narrowed lengthwise or may be provided with axial slots for adaptation of tape on repairable section of pipe line and reduction of concentration of stresses. EFFECT: enhanced reliability of pipe line. 5 cl, 4 dwg
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