|
�ͺ�
|
20 ��ʱ�������� ω/m ������
|
||||
|
0.2mm2
|
0.5mm2
|
1.0mm2
|
1.5mm2
|
2.5mm2
|
|
|
nc �� bc
|
0.25
|
0.10
|
0.05
|
0.03
|
0.02
|
|
kca
|
3.50
|
1.40
|
0.70
|
0.47
|
0.28
|
|
kcb
|
2.60
|
1.40
|
0.70
|
0.47
|
0.28
|
|
kx
|
5.50
|
2.20
|
1.10
|
0.73
|
0.44
|
|
ex
|
6.25
|
2.50
|
1.10
|
0.73
|
0.44
|
|
jx
|
6.25
|
2.50
|
1.25
|
0.83
|
0.50
|
|
tx
|
3.25
|
1.30
|
0.65
|
0.43
|
0.26
|
|
nc
|
3.75
|
1.50
|
0.75
|
0.50
|
0.30
|
|
n
|
7.15
|
2.86
|
1.43
|
0.95
|
0.57
|
|
wc3/25
|
0.50
|
0.20
|
0.10
|
0.07
|
0.04
|
|
wc5/26
|
0.50
|
0.20
|
0.10
|
0.07
|
0.04
|