Aluminium strip for dye-type transformer
1. Application: Dry-type transformer
2:Alloy and Temper
AA1070,1070A,1060,1050,1050A,1350 , Temper: O
3 Specification and tolerance(mm)
Table 1: thickness tolerance
thickness(Min) | Thickness tolerance | ||||
standard (plus.minues) | EN485 | GB/T3880-2006 | |||
1000 | 1000~1250 | 1000 | 1000~1250 | ||
0.2~0.4 | ±0.02 | ±0.02 | ±0.04 | 0.02 | ±0.03 |
0.4~0.8 | ±0.03 | ±0.03 | ±0.04~±0.06 | 0.03 | ±0.04~±0.06 |
0.8~1.1 | ±0.04 | ±0.04 | ±0.06~±0.07 | 0.04 | ±0.06~±0.07 |
1.1~1.4 | ±0.05 | ±0.05 | ±0.07~±0.09 | 0.05 | ±0.07~±0.08 |
1.4~2.0 | ±0.06 | ±0.06 | ±0.09~±0.11 | 0.06 | ±0.08~±0.09 |
2.0~2.5 | ±0.07 | ±0.07 | ±0.12 | 0.07 | ±0.09 |
2.5~3.0 | ±0.08 | ±0.08 | ±0.13 | 0.08 | ±0.12 |
Table 2: edge curve
Width(mm) | Edge curve |
less than 150mm | l ess than 1/2000 |
more than 150mm | less than 2/2000 |
Table 3: high grade edge curve(mm)
width(more than) | Curve(less than) |
25~100 | 8 |
100~300 | 6 |
300~600 | 5 |
600~1000 | 4 |
1000~2000 | 3 |
2000~2500 | 3 |
4 Mechnical propety: As Per EN485
5 : conductivity
Under condition of annealing at temperature of 20℃,conductivity shall be :1/ρ20℃≥35.4m/Ω·mm2