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) |
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支线 |
干线 |
支线 |
干线 |
支线 |
干线 |
||||||||||||||||||||
25°C |
30°C |
35°C |
40°C |
G |
DG |
G |
DG |
25°C |
30°C |
35°C |
40°C |
G |
DG |
G |
DG |
25°C |
30°C |
35°C |
40°C |
G |
DG |
G |
DG |
||
BLX
BLXF 铝芯 |
2.5 | 21 | 19 | 18 | 16 | 15 | 19 | - | - | 19 | 17 | 16 | 15 | 15 | 19 | - | - | 16 | 14 | 13 | 12 | 20 | 25 | - | - |
4 | 28 | 26 | 24 | 22 | 20 | 25 | - | - | 25 | 23 | 21 | 19 | 20 | 25 | - | - | 23 | 21 | 19 | 18 | 20 | 25 | - | - | |
6 | 37 | 34 | 32 | 29 | 20 | 25 | - | - | 34 | 31 | 29 | 26 | 20 | 25 | - | - | 30 | 28 | 25 | 23 | 20 | 25 | - | - | |
10 | 52 | 48 | 44 | 41 | 25 | 32 | 25 | 32 | 46 | 43 | 39 | 36 | 25 | 32 | 25 | 32 | 40 | 37 | 34 | 31 | 25 | 32 | 32 | 38 | |
16 | 66 | 61 | 57 | 52 | 25 | 32 | 32 | 38 | 59 | 55 | 51 | 46 | 25 | 32 | 32 | 38 | 52 | 48 | 44 | 41 | 32 | 38 | 40 | (51) | |
25 | 86 | 80 | 74 | 68 | 32 | 38 | 32 | (51) | 76 | 71 | 65 | 60 | 32 | 38 | 32 | (51) | 68 | 63 | 58 | 53 | 40 | (51) | 40 | (51) | |
35 | 106 | 99 | 91 | 83 | 32 | (51) | 50 | (51) | 94 | 87 | 81 | 74 | 32 | (51) | 50 | (51) | 83 | 77 | 71 | 65 | 40 | (51) | 50 | - | |
50 | 133 | 124 | 115 | 105 | 50 | (51) | 50 | (51) | 118 | 110 | 102 | 93 | 50 | (51) | 50 | (51) | 105 | 98 | 90 | 83 | 50 | - | 65 | - | |
70 | 165 | 154 | 142 | 130 | 50 | (51) | 65 | - | 150 | 140 | 129 | 118 | 50 | (51) | 65 | - | 133 | 124 | 115 | 105 | 65 | - | 65 | - | |
95 | 200 | 187 | 173 | 158 | 65 | - | 65 | - | 180 | 168 | 155 | 142 | 65 | - | 65 | - | 160 | 149 | 138 | 126 | 65 | - | 65 | - | |
120 | 230 | 215 | 198 | 181 | 65 | - | 65 | - | 210 | 196 | 181 | 166 | 65 | - | 65 | - | 190 | 177 | 164 | 150 | 65 | - | 80 | - | |
150 | 260 | 243 | 224 | 205 | 65 | - | 80 | - | 240 | 224 | 207 | 189 | 65 | - | 80 | - | 220 | 205 | 190 | 174 | 80 | - | 80 | - | |
185 | 295 | 275 | 255 | 233 | 80 | - | 80 | - | 270 | 252 | 233 | 213 | 80 | - | 80 | - | 250 | 233 | 216 | 197 | 80 | - | 100 | - | |
BX
BXF 铜芯
|
1 | 15 | 14 | 12 | 11 | 15 | 19 | - | - | 14 | 13 | 12 | 11 | 15 | 19 | - | - | 12 | 11 | 10 | 9 | 15 | 19 | - | - |
1.5 | 20 | 18 | 17 | 15 | 15 | 19 | - | - | 18 | 16 | 15 | 14 | 15 | 19 | - | - | 17 | 15 | 14 | 13 | 20 | 25 | - | - | |
2.5 | 28 | 26 | 24 | 22 | 15 | 19 | - | - | 25 | 23 | 21 | 19 | 15 | 19 | - | - | 23 | 21 | 19 | 18 | 20 | 25 | - | - | |
4 | 37 | 34 | 32 | 29 | 20 | 25 | - | - | 33 | 30 | 28 | 26 | 20 | 25 | - | - | 30 | 28 | 25 | 23 | 20 | 25 | - | - | |
6 | 49 | 45 | 42 | 38 | 20 | 25 | - | - | 43 | 40 | 37 | 34 | 20 | 25 | - | - | 39 | 36 | 33 | 30 | 20 | 25 | - | - | |
10 | 68 | 63 | 58 | 53 | 25 | 32 | 25 | 32 | 60 | 56 | 51 | 47 | 25 | 32 | 25 | 32 | 53 | 49 | 45 | 41 | 25 | 32 | 32 | 38 | |
16 | 86 | 80 | 74 | 68 | 25 | 32 | 32 | 38 | 77 | 71 | 66 | 60 | 25 | 32 | 32 | 38 | 69 | 64 | 59 | 54 | 32 | 38 | 40 | (51) | |
25 | 113 | 105 | 97 | 89 | 32 | 38 | 32 | (51) | 100 | 93 | 86 | 79 | 32 | 38 | 32 | (51) | 90 | 84 | 77 | 71 | 40 | (51) | 40 | (51) | |
35 | 140 | 130 | 121 | 110 | 32 | (51) | 50 | (51) | 122 | 114 | 105 | 96 | 32 | (51) | 50 | (51) | 110 | 102 | 95 | 87 | 40 | (51) | 50 | - | |
50 | 175 | 163 | 151 | 138 | 50 | (51) | 50 | (51) | 154 | 143 | 133 | 121 | 50 | (51) | 50 | (51) | 137 | 128 | 118 | 108 | 50 | - | 65 | - | |
70 | 215 | 201 | 185 | 170 | 50 | (51) | 65 | - | 193 | 180 | 166 | 152 | 50 | (51) | 65 | - | 173 | 161 | 149 | 136 | 65 | - | 65 | - | |
95 | 260 | 243 | 224 | 205 | 65 | - | 65 | - | 235 | 219 | 203 | 185 | 65 | - | 65 | - | 210 | 196 | 181 | 166 | 65 | - | 65 | - | |
120 | 300 | 280 | 259 | 237 | 65 | - | 65 | - | 270 | 252 | 233 | 213 | 65 | - | 65 | - | 245 | 229 | 211 | 193 | 65 | - | 80 | - | |
150 | 340 | 317 | 294 | 268 | 65 | - | 80 | - | 310 | 289 | 268 | 245 | 65 | - | 80 | - | 280 | 261 | 242 | 221 | 80 | - | 80 | - | |
185 | 385 | 359 | 333 | 304 | 80 | - | 80 | - | 355 | 331 | 307 | 280 | 80 | - | 80 | - | 320 | 299 | 276 | 253 | 80 | - | 100 |
注:1.目前BXF型铜芯只生产≤95mm2规格。
2.表中代号G为焊接钢管(又称“低压流体输送用焊接钢管”),管径指内径(GB3092-82《低压流体输送焊接钢管》),DG为电线管,
管径指外径 (GB3640-83《普通碳素钢电线套管》)。
3.括号中管径为51mm的电线管不推荐使用,因为管壁太薄,弯曲时容易破裂。
4.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:或将管径放大一级。