Home > News > Ningbo Qiaopu Electric Co., Ltd. power cord copper specifications

News

Ningbo Qiaopu Electric Co., Ltd. power cord copper specifications
2011-04-13 21:15:04
 

Ningbo Qiaopu Electric Co., Ltd. power cord copper specifications

Ningbo Qiaopu Electric Co., Ltd. Specifications copper power cord

  1. 1 . prepared on the basis: the basis of the procurement specification GB3954-83.

Scope: This procurement specification for drawing Ningbo Qiaopu Electric Co., Ltd. power cord copper specifications

, Aluminum, or other electrical conductors.

  1. 2 . Ningbo Qiaopu Electric Co., Ltd. technical requirements:

3.1 copper power cable meet the specifications should be used "aluminum ingots for remelting" standard under blocks ingot manufacturing.

3.2 billet aluminum conductor with electrical round models, mechanical properties, electrical properties should meet the requirements in Table 1.

Table??? 1

Model

Status and name

Tensile strength

Mpa

% Elongation at break of not less than

Resistivity

Ω. Mm2 / m

L

Soft round billet aluminum electrical

60-80

25

0.02755

L2

H2 state electrical hardware round aluminum billet

80-110

14

0.02785

L4

Electric hard and roundH4 status billet aluminum

95-130

12

0.02801

L6

H6 state electrical hardware round aluminum billet

115-147

8

0.02801

Note: ACSR and aluminum wire and insulation overhead cables should be used in L4, L6 state hard round aluminum billet, or can not use. L2, L4 for insulated wire and cable conductors.

3.3 specification and deviation: the size of billet aluminum with a vernier caliper, billet aluminum with a nominal diameter size, said nominal diameter round aluminum billet aluminum billet deviations and the same cross-section perpendicular to the axis of the largest and measured on the difference between the minimum diameter (f) the value of the provisions of Table 2.

Table 2

Nominal Diameter mm

Deviation mm

f is not greater than

9.0???? 9.5

± 0.5

1.0

Copper the appearance of the power cord 4:

4.1 power cord copper blanks should be round, uniform size, soft and hard line.

4.2 power cord copper billet surface should be smooth, there should be a hem, wrong round, crack, cracks, inclusions and other defects in flash, and its use of harmful defects, allowing a slight mechanical abrasion, spot scar Ma Hang, from the hides.

4.3 Round aluminum billet by reversing the flash should not appear after the crack and inclusion.

Shipping weight 5

Each volume should be an aluminum billet, the maximum weight of 2500kg minimum of not less than 500kg, according to the agreement to allow any weight of round aluminum billet delivery.

6 Acceptance: The test methods.

6.1 Inspection of electrolytic copper power line project: according to the provisions of Table 3.

Table? 3

No.

Test items

No provisions of this standard

Acceptance criteria

Test Method

1

Size

3.3

T, S

GB4909.2-85

2

Appearance

4

R, S

Visual

3

Tensile strength

3.2

R, S

GB4909.3-85

4

Torsion test

7

T, S

Article 7 of this specification

5

Resistivity

3.2

R, S

GB/T3048.2-94

6

Weight

5

T, S

Weigh

6.2 power cord copper sampling: each batch of incoming electrical round aluminum billet, the sample for not less than 25% of the total plate number, but not less than three.

6.3 Decision rules for the power cord copper: the first sampling failure, should take another sample to double the number of failed items in the second experiment,


Previous   [Return Home] [Print] [Go Back]   Next

Contact Us

  • Contact Person:

    Gavi Chen
  • Tel:

    +86-0574-62166266
  • +86-15888180299
  • Fax:

    +86-574-62179799
  • E-mail:

    gavi@plug9.com

点击这里给我发消息
Click here to send me a message.