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Product introduction
Paper covered wires is a type of winding wire made by oxygen-free copper rod or electric round aluminum rod which drawn or extruded by dies with special size, then wrapped with special insulation materials. Multiple wires are made by a number of winding wire pr copper wire¡¢aluminum wire according to required arrangement, then wrapped with special insulation materials.Mainly be used in windings of oil-immersed transformer¡¢reactor¡¢and other electric devices.
Product types
Paper covered rectangular copper(aluminum)conductor¡¢Paper covered rectangular hardened copper conductor¡¢Special insulation materials covered rectangular copper(aluminum)conductor¡¢Multiple hardened copper conductors¡¢Polyvinyl acetal enameled over coated bondable epoxy resin multiple conductors¡¢Special insulation materials covered copper(aluminum)multiple conductors.
Manufacturing scope
Paper covered rectangular copper¡¢aluminum conductor:
Thickness a:1.00mm-10.mm
Width b:3.00mm-25.00mm
Paper covered round copper¡¢aluminum conductor:3.00mm¡Üconductor diameter d¡Ü6.00mm
Multiple copper¡¢aluminum conductor:
Thickness a:1.00mm-4.00mm
Width b:5.00mm-20.00mm
Rectangular hardened copper conductor:
Thickness a:1.00mm-2.50mm
Width b:5.00mm-15.00mm
Polyvinyl acetal enameled over coated bondable epoxy resin conductor:
Thickness a:1.0mm-2.50mm
Width b:5.00mm-15.00mm
If required size out of above scope or select other different types, please contact with us.
Materials
Soft copper used for paper covered or multiple rectangular wire shall conform to GB5584.2-85,the resistivity is not more than 0.01724¦¸¡¤mm2/m at 20¡ã.According to different mechanical strength, below proof stress Rp0.2 is recommended:
C1 Rp0.2(>100~180)N/ mm2
C2 Rp0.2(>180~220)N/ mm2
C3 Rp0.2(>220~260)N/ mm2
Rectangular aluminum used for paper covered wire pr multiple conductors shall conform to GB5584.3-85,the resistivity is not more than 0.0280¦¸¡¤mm2/m at 20¡ã.
Wrapped insulation materials
Kraft paper¡¢High-density insulation paper¡¢Thermally up-graded paper¡¢Nxmex-410
If required other wrapped insulation materials, please contact with us.
Structure design
Multiple conductors are made of two or more rectangular winding wires according to arrangement that wide border or narrow border overlapped. Multiple conductors could be divided into flat wise¡¢side by side¡¢and edge wise.
If required other combination types, please contact with us. |