各種系數(shù)表內(nèi)容

附錄表1礦井電力負(fù)荷計(jì)算需用系數(shù)及加權(quán)平均功率因數(shù)工作場(chǎng)所用電設(shè)備需用系數(shù)加權(quán)平均功率因數(shù)采煤工作面綜合機(jī)械化工作面（自移支架）一般機(jī)械化工作面（單體支架）一般機(jī)械化工作面（傾斜機(jī)采面）緩傾斜煤層（炮采工作面）急傾斜煤層（炮采工作面）0.4+0.60.286+0.7140.6~~~0.750.4~~~0.50.5~~~0.60.70.6~~~0.70.6~~~0.70.60.7掘進(jìn)工作面采用掘進(jìn)機(jī)不采用掘進(jìn)機(jī)0.50.3~~~0.40.6~~~0.70.6附錄表2銅芯電力電纜經(jīng)濟(jì)電流密度年最大利用負(fù)荷小時(shí)數(shù)/h經(jīng)濟(jì)電流密度/（A·）1000~~~30002.503000~~~500020255000以上2.00注：年最大負(fù)荷利用小時(shí)數(shù)一班作業(yè)為1000~~~3000h，兩班作業(yè)為3000~~~5000h,三班作業(yè)為5000h以上。附錄表5礦用橡套電纜單位長(zhǎng)度電阻和電抗Ω/km阻抗電纜型號(hào)截面/2.546101625355070電阻UZ、U、UP、UC、UCP8.83——5.394.66——3.13——1.831.85—1.161.25—0.7320.794—0.5220.579—0.3800.416—0.267—電抗0.1010.0950.0920.0900.0880.0840.081注：表中的數(shù)值為20℃時(shí)的值，換算到65℃的電阻為=1.18附錄表6井下電氣設(shè)備按機(jī)械強(qiáng)度要求的電纜最小截面用電設(shè)備名稱要求最小電纜截面/采煤機(jī)截煤機(jī)及功率相近的刮板輸送機(jī)小功率刮板輸送機(jī)安全回柱絞車裝巖機(jī)調(diào)度絞車煤電鉆35~~~5016~~~3510~~~2510~~~2516~~~254~~~64~~~6附錄表7不同電網(wǎng)電壓下的正常與最大允許電壓損失額定電壓/V變壓器副邊額定電壓（=1.05）/V正常運(yùn)行時(shí)電機(jī)負(fù)偏移—5％個(gè)別情況下電動(dòng)機(jī)最大負(fù)偏移—10％電動(dòng)機(jī)最小端電壓（=1.05）/V允許電壓損失（△=）/V電動(dòng)機(jī)最小端電壓（=1.05）/V允許電壓損失（△=）/V12738066011403300133400690120034651213616271083313512396311733011434259410262970195899174495附錄表8熱穩(wěn)定系數(shù)C的值種類材料最高允許溫度/℃熱穩(wěn)定系數(shù)/C電纜（10kV及以下）油浸紙絕緣銅芯油浸紙絕緣鋁芯銅芯橡膠絕緣鋁芯橡膠絕緣銅芯交聯(lián)聚乙烯絕緣鋁芯交聯(lián)聚乙烯絕緣2502002002002302001659514518814187附錄表9高壓電纜的電阻、電抗值1、高壓鎧裝電纜的電阻、電抗值（Ω/km）截截面（mm2）電壓（kv)1625355070銅鋁銅鋁銅鋁銅鋁銅鋁10R11.3132.2120.841.4160.61.0110.420.7080.30.506X10.080.080.080.080.080.080.080.080.080.08截截面（mm2）電壓（kv)95120150185240銅鋁銅鋁銅鋁銅鋁銅鋁10R10.2210.3720.1750.2950.140.2360.1140.1910.0880.147X10.080.080.080.080.080.080.080.080.080.08注：電纜線芯溫度，對(duì)于10KV為60℃。2、6KV銅芯電纜的電阻、電抗值（Ω/km）截面（mm2）162535507095120150185R21.2870.8240.5880.4120.2940.2170.1920.1370.111X20.0940.0850.0780.0750.0720.0690.0680.0660.066附錄表10低壓電纜的電阻、電抗值1、礦用橡套電纜的電阻、電抗值（Ω/km）阻抗電纜型號(hào)電纜芯線截面（mm2）2.54610162535507095電阻MZ8.835.39MY\MYP4.663.131.831.160.7320.5220.3800.267MYPTJ1.851.250.7940.5790.416電抗0.1010.0950.0920.0900.0880.0840.0810.0780.075附錄表11電動(dòng)機(jī)的最小啟動(dòng)電