COPPER ELECTRICAL WIRE

COPPER ELECTRICAL WIRE


Standard document:
TU U 27.4-00195452-011-2002 - Copper Electrical wire round. Specifications

Material:
copper wire rod according to TU U 27.4-00195452.006-2001 with a copper content of not less than 99.9% (including the silver content of not more than 0.015%)

Purpose: The wire is intended for the manufacture of electrical cables, wires, cords, as well as for other electrical purposes.

Diameter: 0.3 mm to 10 mm

Delivery condition: mild (MM) and solid (MT)

Requirements for hire: TU U 27.4-00195452-011-2002.

Deviation for diameter:


Nominal wire
diameter, mm

Deviation for
diameter, mm

0,30-0,70

±0,01

0,71-0,97

0,02

0,98-2,95

0,02

2,96-3,81

0,03

3,82-4,80

0,04

4,81-6,60

0,05

6,61-9,42

0,06

9,43—10,0

0,07

Electrical resistance wire DC, referred to 1 mm 2 cross section and 1 m length at 20 ° C

Nominal wire diameter, mm

Specific electrical resistance of a wire, Ohm × mm 2 / m, max

Brand MM

MT mark

To 1.00 inclusive

0,01724

0,0180

St. 1.00 to 2.44

0,01724

0,0178

St. 2.44 to 10.00

0,01724

0,0177


The surface of the wire must be clean. Not allowed cracks, slivers, risks, shells, bundles, dents, scratches depth greater than (after stripping control) tolerances on size, as well as defects due to manufacturing technology, leading out to a diameter tolerances. The presence of lubricant on the surface of the wire MT for rejection is not. On the surface of the wire allowed MM discoloration, slight browning color irregularities.


Mechanical properties of the wire

Nominal wire diameter, mm

Tensile strength, MPa
wire marks MT
at least

Elongation, A 200%
Wire grade MM
at least

0,30 0,58

370

20

St. 0,58 0,97

370

25

St. 0,97 3,00

370

30

St. 3,00 5,00

340

30

St. 5,00 10,00

290

35

Note: Tensile wire mark MM and elongation for wire mark the MT is not regulated or controlled.

Wire wound on a reel and a clew bay orderly, correct, do not confuse the turns, without sharp bends.



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