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[低压力缆] 为何中压力缆绝缘厚度加133%?
P:2006-10-23 15:40:54
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这跟电压系统,类似IEC60502中规定了A\B\C三类系统,其中C类要求最高,绝缘厚度就厚。
给大家一个15KV系统的结构参数实例。
15kv 100% Insulation Levels1/C Aluminum, EPR Insulation,1/3 Neutral and Full Neutral, Encapsulating Polyethylene Jacket. SIZE SIZE SIZE SIZE1/3 NEUTRAL <DIV align=right>15KV 100% INSULATION LEVEL </DIV> Conductors Insulation Thickness (MILS) Insulation OD Inches 1/3 Neutral Jacket Thickness (MILS) Approx. Cable OD Inches Approx. Net Wt. Lbs/M Ft. Ampacity?/b>
(AWG or kcm)Number
of StrandsNo. of Wires AWG Condition A Condition B 2 7 175 0.70 6 14 50 1.04 402 125 155 1 19 175 0.74 6 14 50 1.08 435 140 175 1/0 19 175 0.78 6 14 50 1.12 475 160 200 2/0 19 175 0.83 7 14 50 1.17 534 185 225 3/0 19 175 0.88 9 14 50 1.22 615 210 260 4/0 19 175 0.93 11 14 50 1.28 707 235 290 250 37 175 0.98 13 14 50 1.33 784 260 320 350 37 175 1.08 18 14 50 1.46 1009 310 385 500 37 175 1.21 16 12 50 1.63 1305 375 460 750 61 175 1.39 15 10 80 1.93 1839 455 555 1000 61 175 1.54 16 9 80 2.15 2368 525 620 FULL NEUTRAL <DIV align=right>15KV 100% INSULATION LEVEL </DIV> Conductors Insulation Thickness (MILS) Insulation OD Inches Full Neutral Jacket Thickness (MILS) Approx. Cable OD Inches Approx. Net Wt. Lbs/M Ft. Ampacity?/b>
(AWG or kcm)Number
of StrandsNo. of Wires AWG Condition A Condition B 2 7 175 0.70 10 14 50 1.04 450 125 155 1 19 175 0.74 13 14 50 1.08 519 140 175 1/0 19 175 0.78 16 14 50 1.12 594 160 200 2/0 19 175 0.83 13 12 50 1.21 699 185 225 3/0 19 175 0.88 16 12 50 1.26 81 210 260 4/0 19 175 0.93 13 10 50 1.36 972 235 290 250 37 175 0.98 16 10 50 1.41 1115 260 320 350 37 175 1.08 16 9 50 1.57 1408 310 385 <DIV align=right></DIV> <DIV align=right>15kv 133% Insulation Levels, 1/C Aluminum, EPR Insulation, 1/3 Neutral and Full Neutral, Encapsulating Plyethylene Jacket.</DIV> 1/3 NEUTRAL <DIV align=right>15KV 133% INSULATION LEVEL </DIV> Conductors Insulation Thickness (MILS) Insulation OD Inches 1/3 Neutral Jacket Thickness (MILS) Approx. Cable OD Inches Approx. Net Wt. Lbs/M Ft. Ampacity?/b>
(AWG or kcm)Number
of StrandsNo. of Wires AWG Condition A Condition B 2 7 220 0.79 6 14 50 1.14 467 125 155 1 19 220 0.83 6 14 50 1.18 503 140 175 1/0 19 220 0.87 6 14 50 1.22 546 160 200 2/0 19 220 0.92 7 14 50 1.26 608 185 225 3/0 19 220 0.97 9 14 50 1.32 692 210 260 4/0 19 220 1.02 11 14 50 1.40 811 235 290 250 37 220 1.07 13 14 50 1.45 892 260 320 350 37 220 1.17 18 14 50 1.56 1104 310 385 500 37 220 1.30 16 12 80 1.79 1473 375 460 750 61 220 1.48 15 10 80 2.02 1960 455 555 1000 61 220 1.63 16 9 80 2.25 2502 525 620 FULL NEUTRAL <DIV align=right>15KV 133% INSULATION LEVEL </DIV> Conductors Insulation Thickness (MILS) Insulation OD Inches Full Neutral Jacket Thickness (MILS) Approx. Cable OD Inches Approx. Net Wt. Lbs/M Ft. Ampacity?/b>
(AWG or kcm)Number
of StrandsNo. of Wires AWG Condition A Condition B 2 7 220 0.79 10 14 50 1.14 515 125 155 1 19 220 0.83 13 14 50 1.18 587 140 175 1/0 19 220 0.87 16 14 50 1.22 665 160 200 2/0 19 220 0.92 13 12 50 1.30 773 185 225 3/0 19 220 0.97 16 12 50 1.35 890 210 260 4/0 19 220 1.02 13 10 50 1.48 1076 235 290 250 37 220 1.07 16 10 50 1.53 1224 260 320 350 37 220 1.17 16 9 50 1.66 1503 310 385