電工數(shù)據(jù)查詢表

1、電力計算數(shù)據(jù)查詢表目錄1、電纜換算系數(shù)表 22、系統(tǒng)電抗換算長度 23、電纜電導(dǎo)率 34、礦用橡套電纜的單位長度電阻與電抗 35、礦用鎧裝電纜單位長度的有效電阻和電抗 46、裸絞線的電阻和電抗 5 7、1) 6KV 鎧裝電纜每兆瓦公里負荷矩的電壓損失2) 10KV 鎧裝電纜每兆瓦公里負荷矩的電壓損3) 380V 銅芯橡套軟電纜每千瓦公里負荷矩的電壓損失 84) 660V 銅芯橡套軟電纜每千瓦公里負荷矩的電壓損失 95) 660V鎧裝銅芯及鋁芯電纜每千瓦公里負荷矩電壓損失106 )不同電壓等級的各種線路電抗平均值 118、 礦井電力負荷計算需用系數(shù)Kde及加權(quán)平均功率因數(shù)表 119、矩形母線的最

2、大允許持續(xù)載流量1410、裸絞線載流量1511、各種導(dǎo)體的長時允許溫度，短時允許溫度和最大十允許溫度1612、短路電流計算公式表 1713、開關(guān)過流插件調(diào)整表 20，、電纜換算系數(shù)（Kct）表額定電壓等級（V）380、 660、 1140127電纜截面（mm2）45101625355070952.54610換算系數(shù)（Kct）11.978.114.753.011.911.3710.730.531.6410.580.34注：通常標準截面是指 380、660、1140V系統(tǒng)為50mm2,127系統(tǒng)為4mm2八系統(tǒng)電抗換算長度（m）系統(tǒng)容量（MVA）25304050100額定電壓（V）40014.11

3、1.78.87.03.5166041.834.926.120.910.461140125.6105.479.163.331.63、電纜電導(dǎo)率（m/Q ?mm2）電纜種類L電導(dǎo)率r（R=r?A）20 C65 C80 C銅芯軟電纜5342.5銅芯鎧裝電纜48.644.3鋁芯鎧裝電纜3228.8銅的電阻率為 0.017Q ?m/mrfi四、礦用橡套電纜的單位長度電阻與電抗阻抗 Zo(Q /km)截面（mm2）4610162535507095120電阻Ro5.53.6932.1591.3690.86380.61600.44840.31510.23010.18電抗Xo0.1010.0950.0920.0

4、900.0880.0840.0810.0780.0750.074五、礦用鎧裝電纜單位長度的有效電阻和電抗（Q/km）電纜主芯線截面（mm）銅鋁1KV及以下6KV1KV及以下6KVR）XR）XR）XF0X45.3480.0959.0130.09563.5660.0906.0080.090102.1390.0733.6050.073161.3370.06571.340.0682.2530.06752.2570.068250.8560.06620.8570.0661.4410.06621.4450.066350.6100.06370.6120.0641.0300.06371.0300.064500.

5、42830.06250.4290.0630.7210.06250.7220.063700.30440.06120.3060.0610.51450.06120.5160.061950.22540.06020.2260.0600.380.06020.380.060六、裸絞線的電阻和電抗導(dǎo)線電阻/線間幾何均距（m）0.60.81.01.251.502.002.503.003.504.00型號Q /km電抗(Q /km)LJ-161.8470.3560.3770.3910.4050.4160.4340.4480.459LJ-251.1880.3450.3630.3770.3910.4020.4210.

6、4350.448LJ-350.8540.3360.3520.3660.3800.3910.4100.4240.4350.4450.453LJ-500.5930.3250.3410.3550.3690.3800.3980.4130.4230.4330.441LJ-700.4240.3120.330.3440.3580.3700.3880.3990.4100.4200.428LJ-950.3170.3020.320.3440.3480.3600.3780.3900.4010.4110.419LJ-1200.2530.2950.3130.3270.3410.3520.3710.3820.3930.4

7、030.411LJ-1500.2000.2880.3050.3190.3330.3450.3630.3770.3880.3980.406LJ-1850.1620.2810.2990.3130.3270.3390.3560.3710.3820.3920.400LJ-2400.1250.2730.2910.3050.3190.3300.3480.3620.3740.3830.392LGJ-161.9260.3870.4010.4120.430.4440.4560.4660.474LGJ-251.2860.3740.3880.4000.4180.4320.4430.4530.461LGJ-350.7

8、960.3590.3730.3850.4030.4170.4290.4380.446LGJ-500.6090.3510.3650.3760.3940.4080.4200.4290.437LGJ-700.4320.3640.3820.3960.4080.4170.425LGJ-950.3150.3530.3710.3850.3970.4060.414LGJ-1200.2550.3470.3650.3790.3910.4000.408LGJ-1500.2110.3400.3580.3720.3840.3980.401LGJ-1850.1630.3650.3770.3860.394LGJ-2400.

9、1300.3570.3690.3780.386七、1）、6KV鎧裝電纜每兆瓦公里負荷矩的電壓損失（%）670QQ58銅鋁-銅鋁銅鋁銅鋁銅鋁銅鋁銅鋁銅鋁銅鋁COS0.653.946.492.64.231.913.071.392.4891.051.6320.8221.2510.6921.0310.590.8620.5610.7860.73.9126.462.5694.2031.8823.0431.3682.4721.0241.6060.7971.2260.6671.0060.5660.8380.4910.7110.753.8866.4342.5444.1771.8573.0911.3442.448

10、11.5830.7751.2030.6440.9830.5630.8150.4680.6880.83.8616.412.5194.1531.8342.9951.3212.4250.9781.5590.7521.1850.6620.9610.5210.7930.4390.6660.853.8376.3852.4954.1291.8112.9721.2982.4030.9561.5380.731.160.60.9390.50.7710.4250.6450.93.8126.362.474.1041.7872.9481.2752.3790.9331.5150.7081.1370.5770.9170.4

11、770.7940.4020.6170.953.7826.332.4424.0751.7592.9211.2482.3520.9061.4890.6821.1080.5510.8910.4510.7230.3760.5961.03.726.2692.3814.0151.7012.8631.192.2950.8511.4330.6271.0560.4960.8360.3970.6690.3220.542R0( Q /Km)1.342.2570.8571.4450.6121.030.4290.8260.3060.5160.2260.380.1790.3010.1430.2410.1760.195X0

12、(Q/Km)0.0680.0680.0660.0660.0640.0640.0630.0630.0610.0610.060.060.060.060.060.060.060.062）、10KV鎧裝電纜每兆瓦公里負荷矩的電壓損失（%）65270O2Q58銅鋁銅鋁銅鋁銅銅鋁銅鋁銅鋁銅.一鋁560740111390603046096204320330CCO20一 500200.71.3952.2940.9221.4980.6821.0910.5020.8910.3820.5880.3030.4540.2570.3770.2220.3180.1960.2730.751.3842.2830.9111.48

13、70.6711.080.4910.880.3710.5770.2920.4430.2460.3660.2110.3070.1850.2620.81.3732.2720.91.4760.661.0690.480.8690.360.5660.2810.4320.2350.3550.20.2960.1740.2510.851.3632.2620.891.4660.651.0590.470.8590.350.5560.2710.4220.2250.3450.190.2860.1640.2410.91.3522.2510.8791.4550.6391.0480.4590.8480.3390.5450.2

14、60.4110.2140.3340.1790.2750.1530.230.951.3392.2380.8661.4420.6261.0350.4460.8350.3260.5320.2470.3980.2010.3210.1660.2620.1410.2171.01.3132.2120.841.4160.61.0090.420.8090.30.5060.2210.3720.1750.2950.140.2360.1140.191Ro(Q /Km)1.3132.2120.841.4160.61.0090.420.8090.30.5060.2210.3720.1750.2950.140.2360.1

15、140.191X0(Q/Km)0.080.080.080.080.080.080.080.080.080.080.080.080.080.080.080.080.080.083）、380V銅芯橡套軟電纜每千瓦公里負荷矩的電壓損失（%）截面（mm2）功率因數(shù)461016253550700.63.9082.6431.581.0320.6790.5040.3850.290.653.8912.6331.5711.0220.670.4950.3770.2820.73.882.6231.5611.0130.6610.4860.3680.2740.753.8712.6141.5521.0040.6520.4

16、780.3590.2660.83.8622.6051.5440.9960.6440.470.3530.2590.853.8522.5961.5350.9880.6360.4630.3450.2510.93.8432.5871.5270.9790.6280.4550.3370.245注：電纜芯線溫度為 65 C4）、660V銅芯橡套軟電纜每千瓦公里負荷矩的電壓損失（%）截面（mm2）功率因數(shù)461016253550700.61.2950.8760.5240.3420.2250.1670.1280.0960.651.290.8730.5210.3390.2220.1640.1250.0930.71

17、.2860.8690.5170.3360.2190.1610.1220.0910.751.2830.8660.5140.3330.2160.1580.1190.0880.81.280.8630.5120.330.2140.1560.1170.0860.851.2770.8610.5090.3270.2110.1530.1140.0830.91.2740.8580.5060.3250.2080.1510.1120.081Ro(Q /Km)5.53.692.161.370.8640.6160.4480.315Xo(Q/Km)0.1010.0950.0920.090.0880.0840.0810.0

18、78注：電纜芯線溫度為 65 C5）、660V鎧裝銅芯及鋁芯電纜每千瓦公里負荷矩電壓損失（%）2 、數(shù)因 訊率 、截功o65270銅鋁銅鋁銅鋁銅鋁銅鋁銅鋁銅鋁60580T530607 T T0070560T T505 T T 070T5203 T T08 T0T o T 0750230T350T20T T T 0T3T0808410T5 T 08058034006090/K QRR(4 z6334.3352 zT4003T720Xo（ Q /Km）0.0730.06750.06620.06370.06250.06120.0602注：電纜芯線溫度為 65 C6）、不同電壓等級的各種線路電抗平均值

19、線路類型電抗 R0（Q /Km）架空單回路電壓在1KV以上到220KV0.4架空單回路電壓在1KV以下0.335KV電纜線路0.121KV到10KV電纜線路0.07 0.081KV以下電纜線路0.06 0.07八、礦井電力負荷計算需用系數(shù)Kde及加權(quán)平均功率因數(shù)表1用電設(shè)備需用系數(shù)Kde加權(quán)平均功率因數(shù)COS采煤工作面綜合機械化工作面（自移支架）0.4+0.6Pmax/ 刀卩 n0.7般機械化工作面（單體支架）0.286+0.714 Pmax/ EPn0.60.7般機械化工作面（傾斜機米面）0.6 0.750.6 0.7緩傾斜煤層（炮采工作面）0.4 0.50.6急傾斜煤層（炮采工作面）0.5

20、 0.60.7掘進工作面采用掘進機的0.50.6 0.7非掘進機的0.3 0.40.6電機車架線式電機車0.5 0.650.9蓄電池電機車0.80.9其他運輸設(shè)備（輸送機、絞車）0.50.7井底車場無主排水設(shè)備0.6 0.70.7有主排水設(shè)備0.75 0.850.8井下照明11 （日光燈cos=0.6）注：Pmax最大容量電動機（如機組、輸送機等）的功率，KW ;刀Pn 參加計算的所有用電設(shè)備的額定功率（不包括備用設(shè)備）之和，KW礦井電力負荷計算需用系數(shù)Kde及加權(quán)平均功率因數(shù)表2用電設(shè)備名稱需用系數(shù)Kde加權(quán)平均功率因數(shù)cos備注壓風(fēng)機房主電動機0.8 0.850.8 0.85斜井膠帶提升機

21、0.750.7地面綜合運輸0.70.7儲煤場0.6 0.650.7絞車房輔助設(shè)備0.70.7鍋爐房0.6 0.70.65 0.7空氣加熱房0.75 0.80.8日用及消防水泵房0.7 0.750.75冋步機時般cos為機修廠0.35 0.40.6 0.650.9超前，高壓水銀燈與支柱加工廠0.4 0.50.65日光燈cos取0煤樣室0.4 0.50.6化驗室0.5 0.60.8燈房室0.70.7變電所用電0.70. 7地面建筑物內(nèi)部照明0.851工業(yè)廣場區(qū)間外部照明0.91主通風(fēng)機房輔助電動機0.35 0.50.7九、矩形母線的最大允許持續(xù)載流量2母線截面（mm ）最大允許持續(xù)電流（A）一條兩

22、條銅鋁銅鋁平放豎放平放豎放平放豎放平放豎放15X320021015616520X321627520421525X332334025226530X445147534736540X459362545648040X566570051854050X581686063266550X690695570374060X610691125826870165017401282135060X9125113209751025205021601596168060 X 101395147511001155243025601910201080X61360148010501150194021101500163080X9155

23、3169012151320241026201876204680 X 1017471900136014802850310022372410100X 616651810130114252270247017801935100X819112080149516252810306022002390100X 1021212310167518203320361026302860120X 822102400175019003150340024402650120X 1024352650190520703770410029453200十、裸絞線載流量銅絞線鋁絞線鋼芯鋁絞線導(dǎo)線型號長時允許電流導(dǎo)線型號長時允許電流導(dǎo)線

24、型號室外長時允許電流室外室內(nèi)室外室內(nèi)TJ-45025LJ-1610580LGJ-16105TJ-67035LJ-25135110LGJ-25135TJ-109560LJ-35170135LGJ-35170TJ-16130100LJ-50215170LGJ-50220TJ-25180140LJ-70265215LGJ-70275TJ-35220175LJ-95325260LGJ-95335TJ-50270220LJ-120375310LGJ-120380TJ-70340280LJ-150440370LGJ-150445TJ-95415340LJ-180500425LGJ-185515TJ-120

25、485405LJ-240610LGJ-240610TJ-150570480LGJ-300700TJ-185645550LGJ -400800TJ-240770650注：導(dǎo)線最高允許溫度 70 C，環(huán)境溫度25C卜一、各種導(dǎo)體的長時允許溫度，短時允許溫度和最大十允許溫度導(dǎo)體種類和材料長時允許溫度e p( c)短時允許溫度e p?s( c)短時最大允許溫升Z p?s( c)熱溫度系數(shù)母線排銅70320250175鋁7022015097鋼(不與電器直接連接時)7042035070鋼(與電器直接連接時)7032025060油浸 絕緣電纜銅芯10KV及以下80280200165鋁芯10KV及以下8023

26、0150902530KV8020512595橡皮電纜6520013514565200135100十二、短路電流計算公式表計算公式符合含義U2N1、三相短路電流|sc（3）= 刀R）2 + （刀X）2Isc （3）三相短路電流， A lsc（2）兩相短路電流，AU2N 變壓器二次側(cè)的額定電壓，對于127、380、660和1140V電網(wǎng)，分別為133、 400、 690 和 1200VU2N2、兩相短路電流lsc（2）= 2 刀R）2 +（刀X）23、三相短路電流和兩相短路電流的換算關(guān)系lsc（3）=1.15 I sc（2）； lsc（2）=0.87 lsc（3）U2N2U2N24、系統(tǒng)電抗 Xs

27、=SSC（3）= J3 ISC（3）若井下中央變電所10KV母線上的短路容量不詳， 可用該變電所高壓配電箱的額定斷流容量進行近似 計算。5、總電阻和總電抗刀 R=Ri+Rt+R2 ；刀X=Xs+Xi+Xt+X26、高壓電纜的阻抗R01 L1X01 L1Ri= KT2Xi= KT2R01 L1 JR012 + X012Z1= KT2 = KT2 Li 7、變壓器的阻抗 P P U2N2 rt=3I2N2 = SN2Ssc（3）井下中央變電所高壓母線上的短路容量，MV ARi、X1和 乙折合至變壓器二次側(cè)以后高壓電流每相的電阻、電抗和阻抗R01、X01和Zo1高壓鎧裝電纜每相每公里的電阻、 電抗和阻抗。L1 高壓電纜的實際長度，kmkt變壓比，變壓器一、二次平均電壓之比（如6300/400）Rt、Xt和Zt變壓器每相的電阻、電抗和阻抗值Sn和I2N變壓器的額定容量（VA ）和二次側(cè)的額 定電流，（A）。UX- U2NUX- U2N2Xt二護-100I2N =100 - SN2 PUr= SN x 100Ux=Z2+ UR2