FIELD: heat insulation.
SUBSTANCE: disclosed is a heat-insulated multilayer pipe for transmitting electric power in superconductivity conditions, which highly prevents penetration of external heat as a result of radiation and has excellent heat-insulating properties without using super-high-power insulation. Heat-insulated multilayer pipe for electric power transmission in conditions of superconductivity contains superconducting cable and multilayer pipe, in which a superconducting cable is placed, wherein the multilayer pipe consists of a plurality of straight-line tubes and at least one of the plurality of straight-line pipes comprises a zinc or zinc alloy coating layer having an average spangle size of 2.0 mm or less.
EFFECT: invention substantially prevents penetration of external heat as a result of radiation and has excellent heat-insulating properties without using super-heavy insulation.
1 cl, 2 dwg, 2 tbl
Authors
Dates
2020-04-23—Published
2018-05-29—Filed