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[问题求助] 求高手指导载流量问题
P:2012-05-04 14:19:31
3
直接埋地平行敷设: | ||||
I={[(90-30)-0.295×(0.5×0.486+0.182+1.248)] | ||||
/[0.00002876×(0.486+(1+0.08)×(0.182+1.248))]}^0.5 | = | 1010 | (A) | |
直接埋地三角形敷设: | ||||
I={[(90-30)-0.295×(0.5×0.486+0.182+1.234)] | ||||
/[0.00002876×(0.486+(1+0.04)×(0.182+1.234))]}^0.5 | = | 1014 | (A) | |
穿管埋地平行敷设: | ||||
I={[(90-30)-0.295×(0.5×0.486+0.182+1.587)] | ||||
/[0.00002876×(0.486+(1+0.08)×(0.182+1.587))]}^0.5 | = | 929 | (A) | |
穿管埋地三角形敷设: | ||||
I={[(90-30)-0.295×(0.5×0.486+0.182+1.573)] | ||||
/[0.00002876×(0.486+(1+0.04)×(0.182+1.573))]}^0.5 | = | 932 | (A) | |
空气中平行敷设: | ||||
I={[(90-40)-0.295×(0.5×0.486+0.182+0.322)] | ||||
/[0.00002876×(0.486+(1+0.08)×(0.182+0.322))]}^0.5 | = | 1296 | (A) | |
空气中三角形敷设: | ||||
I={[(90-40)-0.295×(0.5×0.486+0.182+0.323)] | ||||
/[0.00002876×(0.486+(1+0.04)×(0.182+0.323))]}^0.5 | = | 1296 | (A) | |
穿管空气中平行敷设: | ||||
I={[(90-40)-0.295×(0.5×0.486+0.182+0.637)] | ||||
/[0.00002876×(0.486+(1+0.08)×(0.182+0.637))]}^0.5 | = | 1123 | (A) | |
穿管空气中三角形敷设: | ||||
I={[(90-40)-0.295×(0.5×0.486+0.182+0.638)] | ||||
/[0.00002876×(0.486+(1+0.04)×(0.182+0.638))]}^0.5 | = | 1122 | (A) |
CCA - copper-clad aluminium(wire)铜包铝(线) (0) 投诉
5
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