TU 1844-117-00195430-2007

DEPARTMENT OF METALLURGY

OKP 18 4420 AGREED Chief Engineer ZAO "Contactor" E.G. Maisky 2007

Group E 41 I APPROVE Chief Engineer of JSC "Kamensk-Uralsky plant for color processing metals" N.S. Arsentyeva 2007

COPPER BUSBAR WITH INCREASED SURFACE CLEANLINESS

TECHNICAL SPECIFICATIONS

TU 1844-117-00195430-2007

(replaces TU 1844-117-00195430-2002)

Holder of the original JSC "KUZOTSM"

The term of introduction is from 15.11.2007.

The validity period of technical conditions is "without limitation"

DEVELOPED BY Head of Technical Department OJSC "KUZOCM" A.V. Filonov 11.09 2007 Chief Technologist OJSC "KUZOCM" N.F. Bokov 11.09 2007

2007

These technical conditions apply to drawn copper buses with increased surface purity, intended for electrical engineering purposes.

Example of a symbol

Copper busbar, solid, with increased surface cleanliness, size 5.0 x 50 mm

ShMT PChP 5.0x50 TU 1844-117-00195430-2007

Semi-hard copper busbar with increased surface cleanliness, size 8.0 x 50 mm

ShMPT PChP 8.0x50 TU 1844-117-00195430-2007

1 TECHNICAL REQUIREMENTS

1.1 Basic parameters and dimensions

1.1.1 Tires must comply with the requirements of these technical conditions.

1.1.2 The nominal dimensions of the tires on sides "a", "b" must comply with the requirements specified in Table 1.

Table 1 In millimeters

Nominal tire sizes, a x b	Nominal tire sizes, a x b
5.0x30	6.0x60
10.0x30	8.0x60
5.0x40	10.0x60
8.0x40	12.5x60
10.0x40	8.0x80
18,0x45	10.0x80
20,0x45	6.0x100
5.0x50	10.0x100
8.0x50	18,0x110
10.0x50	20,0x110
4.0x60	10.0x120

Note: By agreement between the manufacturer and the consumer, the production of tires of other sizes is permitted.

1.1.3 The maximum deviations of tire dimensions on sides "a", "b" must comply with the requirements of GOST 434-78.

					TU 1844-117-00195430-2007
Change	Sheet	Doc. No.	Subp.	Date
Developed by		Fedoseeva T.I.		16.08.07	Copper busbars with increased surface cleanliness	Litera			Sheet	Sheets
Checked		Bokov N.F.		16.08.07			A		1	6
N. Department		Filonov A.V.		16.08.07		OJSC "KUZOCM"
N. controller		Kuzmina N.V.		16.08.07
Approved.		Arsentyeva N.S.		08.09.07

Note - For a 20 x 110 mm tyre, the maximum deviations on side "a" should be ± 0.2 mm, on side "b" ± 0.34 mm.

1.1.4 Tires must have rounded corners. Nominal dimensions and maximum deviations of rounding radii must comply with the requirements of GOST 434-78.

1.1.5 The length of the tire strip must be 2000 mm with a maximum length tolerance of plus 100 mm.

The maximum deviations in length for tires measuring 18.0 x 45; 5.0 x 50; 10 x 60; 10.0 x 100; 18.0 x 100; 10.0 x 120 must be plus 50 mm.

Notes

1 It is permitted to supply shortened tires with a length of 1500⁺¹⁰⁰ mm, packed in a separate box, the volume of tires of the specified length must not exceed 10% of the batch volume.

2 By agreement between the manufacturer and the consumer, the supply of tires of other lengths is permitted.

1.1 Characteristics

1.2.1 Busbars are made of copper of grade not lower than M1 according to GOST 859-2001.

1.2.2 Defects on the surface of tires that exceed the maximum dimensional deviations during control cleaning are not allowed.

The surface of the tires must be clean, without visible traces of technological lubrication. Traces of under-etching, scale, dark spots are not allowed.

1.2.3 The deviation of the cross-sectional shape of the tires must be limited by the maximum deviations of the cross-sectional dimensions.

1.2.4 The roughness of the tire surface must be no more than Rₐ 1.25 µm.

Note: It is permissible to establish requirements for the quality of the tire surface on samples approved in accordance with the established procedure.

1.2.5 Tyres are supplied drawn in a solid or semi-solid state.

1.2.6 The mechanical properties of tires must comply with the requirements specified in Table 2.

Table 2

Size a, mm	Brinell hardness for tires of the ШМТ brand	Brinell hardness for tires of the ШМПТ brand
	not less than
From 4.0 to 7.0 incl.	65	from 65 to 80
St. 7.0

1.2.7 Deviation from straightness on the side of section "b" (crescent shape) of tires in strips should not exceed 3.5 mm per 2 meters of length.

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1.3 Marking

1.3.1 Tire markings must comply with the requirements of GOST 18690-82.

1.3.2 The label attached to each box must indicate:

- trademark or name and trademark of the manufacturer;

- conventional designation of tires;

- batch number;

- technical control stamp.

1.4 Packaging

1.4.1 Tires are supplied in wooden boxes weighing up to 1000 kg. Between the layers of tires there is a layer of packing paper according to GOST 8273-75 or waxed paper according to GOST 9569-79. A pack of tires in a box is wrapped in polyethylene film according to GOST 10354-82.

Note: other types of packaging are permitted upon agreement with the customer.

2 SAFETY REQUIREMENTS AND

ENVIRONMENTAL PROTECTION

2.1 The air in the working area during drawing of copper busbars must comply with the requirements of GOST 12.1.005-88.

2.2 Copper busbars do not form toxic compounds in the air in the presence of other substances or factors.

2.3 Copper buses are fire and explosion proof.

2.4 Loading and unloading operations must be carried out in accordance with GOST 12.3.009-76.

3 ACCEPTANCE

3.1 Tires are accepted in batches. A batch must consist of tires of the same brand and size and must be issued with one quality document containing:

- trademark or trademark and name of the manufacturer;

- conventional designation of tires;

- batch number;

- the mass of the batch;

- technical control stamp.

3.2 100% of tires in a batch are subject to external inspection.

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3.3 For size control, 10% of tires from a batch are selected, but not less than three tires.

3.4 Tests for compliance with clause 1.1.4 are carried out during the production process.

3.5 To determine the mechanical properties, 2% of the tires in the batch are selected, but not less than three tires.

3.6 To determine the chemical composition, samples are taken from the molten metal of each heat at the manufacturing plant.

3.7 If unsatisfactory results are obtained, repeat tests are carried out on a double number of samples taken from the same batch.

The results of the retests apply to the entire batch.

4 CONTROL METHODS

4.1 Measurement of tire sizes is carried out using a micrometer MK in accordance with GOST 6507-90 and a caliper ShchTs-1 in accordance with GOST 166-80.

The dimensions of the tires are measured at a distance of at least 1 m from the beginning or end of the strip in three places located at least 100 mm from each other; the arithmetic mean of the three measurements is taken as the size value.

4.2 The radius of curvature is checked using special templates, or a projector with a magnification of at least ten times on tire samples, or during the manufacture of drawing tools.

4.3 The quality of the tire surface for the presence of surface defects is checked by visual inspection without the use of magnifying devices.

4.4 The roughness of tires is checked according to GOST 2789-73.

4.5 The cross-sectional shape of the tires is controlled using a projector or during the manufacture of the drawing tool.

4.6 The tire hardness test is carried out in accordance with GOST 9012-59 at least three times on a 200 mm long sample at a distance of 1/3 from the edge of the tire.

4.7 The crescent shape of tire stripes is determined according to GOST 26877-86.

4.8 The chemical composition of tires is determined according to GOST 9717.1-82 - GOST 9717.3-82, GOST 13938.1-78 - GOST 13938.12-78, GOST 13938.13-93 or other methods that are not inferior in accuracy to the standard ones. Sampling and sample preparation according to GOST 24231-80.

5 TRANSPORTATION AND STORAGE

5.1 Tires are transported by all types of transport in covered vehicles in accordance with the rules for the transportation of goods in force for the given type of transport.

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5.2 Transport marking - according to GOST 14192-96 with the application of the handling sign "Keep away from moisture".

5.3 Tires must be stored indoors. During storage, tires must be protected from mechanical damage, moisture and exposure to active chemicals.

6 MANUFACTURER'S WARRANTIES

6.1 The manufacturer guarantees that the tires comply with the requirements of these technical conditions, subject to the transportation and storage conditions established by the technical conditions.

The warranty period for storage of hard and semi-hard tires is 6 months from the date of shipment, for soft tires - 12 months.

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