截 面 (mm2) |
2根单芯(A) |
管径(mm) |
3根单芯(A) |
管径(mm) |
4根单芯(A) |
管径(mm) |
|||||||||||||
25℃ |
30℃ |
35℃ |
40℃ |
支线 |
干线 |
25℃ |
30℃ |
35℃ |
40℃ |
支线 |
干线 |
25℃ |
30℃ |
35℃ |
40℃ |
支线 |
干线 |
||
BLX、 BLXF、 铝芯 |
2.5 |
19 |
17 |
16 |
15 |
20 |
|
17 |
15 |
14 |
13 |
20 |
|
15 |
14 |
12 |
11 |
20 |
|
4 |
25 |
23 |
21 |
19 |
20 |
|
23 |
21 |
19 |
18 |
20 |
|
20 |
18 |
17 |
15 |
25 |
|
|
6 |
33 |
30 |
28 |
26 |
20 |
|
29 |
27 |
25 |
22 |
20 |
|
26 |
24 |
22 |
20 |
25 |
|
|
10 |
44 |
41 |
38 |
34 |
25 |
32 |
40 |
37 |
34 |
31 |
25 |
32 |
35 |
32 |
30 |
27 |
32 |
40 |
|
16 |
58 |
54 |
50 |
45 |
32 |
40 |
52 |
48 |
44 |
41 |
32 |
40 |
46 |
43 |
39 |
36 |
40 |
40 |
|
25 |
77 |
71 |
66 |
60 |
40 |
40 |
68 |
63 |
58 |
53 |
40 |
40 |
60 |
56 |
51 |
47 |
40 |
50 |
|
35 |
95 |
88 |
82 |
75 |
40 |
50 |
84 |
78 |
72 |
66 |
40 |
50 |
74 |
69 |
64 |
58 |
50 |
63 |
|
50 |
120 |
112 |
103 |
94 |
50 |
50 |
108 |
100 |
93 |
85 |
50 |
50 |
95 |
88 |
82 |
75 |
63 |
63 |
|
70 |
153 |
143 |
132 |
121 |
50 |
63 |
135 |
126 |
116 |
106 |
50 |
63 |
120 |
112 |
103 |
94 |
63 |
|
|
95 |
184 |
172 |
159 |
145 |
63 |
63 |
165 |
154 |
142 |
130 |
63 |
63 |
|
|
|
|
|
|
|
120 |
210 |
196 |
181 |
166 |
63 |
|
190 |
177 |
164 |
150 |
63 |
|
|
|
|
|
|
|
|
BLX、 BLXF、 铜芯 |
1 |
13 |
12 |
11 |
10 |
16 |
|
12 |
11 |
10 |
9 |
16 |
|
11 |
10 |
9 |
8 |
20 |
|
2.5 |
17 |
15 |
14 |
13 |
16 |
|
16 |
14 |
13 |
12 |
16 |
|
14 |
13 |
12 |
11 |
20 |
|
|
2.5 |
25 |
23 |
21 |
19 |
20 |
|
22 |
20 |
19 |
17 |
20 |
|
20 |
18 |
17 |
15 |
20 |
|
|
4 |
33 |
30 |
28 |
26 |
20 |
|
30 |
28 |
25 |
23 |
20 |
|
26 |
24 |
22 |
20 |
25 |
|
|
6 |
43 |
40 |
37 |
34 |
20 |
|
38 |
35 |
32 |
30 |
20 |
|
34 |
31 |
29 |
26 |
25 |
|
|
10 |
59 |
55 |
51 |
46 |
25 |
32 |
52 |
48 |
44 |
41 |
25 |
32 |
46 |
43 |
39 |
36 |
32 |
40 |
|
16 |
76 |
71 |
65 |
60 |
32 |
40 |
68 |
63 |
58 |
53 |
32 |
40 |
60 |
56 |
51 |
47 |
40 |
40 |
|
25 |
100 |
93 |
86 |
79 |
40 |
40 |
90 |
84 |
77 |
71 |
40 |
40 |
80 |
74 |
69 |
63 |
40 |
50 |
|
35 |
125 |
116 |
108 |
98 |
40 |
50 |
110 |
102 |
95 |
87 |
40 |
50 |
98 |
91 |
84 |
77 |
50 |
63 |
|
50 |
160 |
149 |
138 |
126 |
50 |
50 |
140 |
130 |
121 |
110 |
50 |
50 |
123 |
115 |
106 |
97 |
63 |
63 |
|
70 |
195 |
182 |
168 |
154 |
50 |
63 |
175 |
163 |
151 |
138 |
50 |
63 |
155 |
144 |
134 |
122 |
63 |
|
|
95 |
240 |
224 |
207 |
189 |
63 |
63 |
215 |
201 |
185 |
170 |
63 |
63 |
|
|
|
|
|
|
|
120 |
278 |
259 |
240 |
219 |
63 |
|
250 |
233 |
216 |
197 |
63 |
|
|
|
|
|
|
|
注 1、目前BXF型铜芯只生产≤95mm2规格。
2、硬塑料管规格为轻型管,管径指内径,鸿雁电器公司生产无增塑料刚性PVC管,亦相当于重型管并符合IEC614标准,穿管标准见第十章。
3、表中管径适用于:直管≤30m;一个弯≤20m;二个弯≤15m;三个弯≤8m;超长应设拉线盒或增大一级管径。