配网工程典型设计（线路部分编制说明）.doc

湖北省电力公司网配网工程典型设计配网工程典型设计（线路部分编制说明） - 29 -1总的部分 湖北省电力公司配网工程通用设计10kV架空线路部分说明书主要阐述了城市10kV线路的设计气象条件、导线型号的选取、金具及绝缘子的使用、电杆的分类和选择、基础设计的地质条件，并对柱上开关、架空线电缆终端和柱上配电变压器的安装、选用作了相应的说明。111图纸编号说明图纸编号由4个字段组成：第一字段标准设计代字；第二字段第1个字母为分类号，第23个字母为专业号，第4个字母为型式号，第56个字母为编制年份，第三字段为卷册号，第四字段为图纸编号，具体含义如下：第一字段TD为通用设计。第二字段第1个字母X为线路，J为结构，第34个字母05为编制年份。第三字段0101为第1卷第1册。第四字段01为图纸编号12设计依据本次通用图依据以下规程、规范、设计资料进行设计：10kV及以下架空配电线路设计技术规程（DL/T 5220-2005）架空绝缘线路设计技术规程(DL/T 601-1996)架空送电线路钢管杆设计技术条件(DL/T 5130-2001)输电线路钢管杆制造技术条件(DL/T 646-1998)电力工程电缆设计规范(GB 50217-94)13设计气象条件通用设计选取以下气象条件作为导线及杆塔计算的依据，对于其它气象条件下的导线和杆塔计算和选用，设计人员应根据本地区的气象资料作进一步校验，应参照架空配电线路设计技术规程并最终确定适用于本地区的导线施工弧垂和相关的杆塔、基础的使用条件。条 件气温（）风速（m/s）冰厚（mm）最高气温4000最低气温-2000安装情况-10100外过电压15100内过电压15150最大覆冰-51010最大风速-5250年平均气温150014 导线选取和使用141 导线截面选取10kV导线根据不同的供电负荷需求可以采用多种截面的导线，本次通用设计的线路、基础针对150、185、240截面导线进行设计，如采用其它截面的导线，设计人应进行验算。各地在使用时应根据各自的需要选择12种常用截面和导线作为干线，可使施工备料、杆型选择、运行维护得以简化。142导线型号选取城区10kV导线推荐采用JKLYJ系列辐照交联型架空绝缘铝芯导线，即：JKLYJ-10/150、JKLYJ-10/185、JKLYJ-10/240。特殊情况可以选用铝绞线或钢芯铝绞线，当使用铝绞线或钢芯铝绞线截面积与导线截面相同时，与架空绝缘线相比，在相同档距及气象条件下，直线杆荷载略小，但应校验耐张杆荷载。14.2.1导线安全系数的选取安全系数未注明时可以在4.010.0的范围内选择，本设计中导线安全系数取值为5.0。14.2.2 导线初伸长补偿处理与导线弧垂表的使用因10kV配电线路均采用松弛张力放线，安全系数取值较大，导线的初伸长建议采用以下处理方式：代表档距60m及以下的耐张段不考虑初伸长的补偿（即：直接根据弧垂表查取的数值进行架线），代表档距60m以上的耐张段导线的初伸长补偿为：JKLYJ系列绝缘铝线按弧垂表查取数值乘0.9进行施工。弧垂表（见附表）给出了常用三种规格导线30m110m（间隔5m），在各种温度条件下的导线弧垂的数值。使用时根据放线耐张段的代表档距L代表和放线时的气温采用插入法查取相应弧垂数值（并根据上述要求进行导线初伸长的补偿），然后根据f观察=(L观察/L代表)2*f代表计算出观察档施工弧垂f观察。143杆型方式: 按回路数确定相应的杆型方式，分单回、双回、三回等三大类，每一类包括直路杆型和耐张杆型。为了具备通用性，其中：单回线路考虑带路灯高压，双回线可以带路灯高压，三回线不考虑带路灯高压,主要用适于变电站出线段。线路转角超过15时，需要进行耐张联结，直线控制在1000m以内。转角度小于15可采用双夹横担双针瓶硬转方式。15金具选用151绝缘导线专用耐张线夹 本设计采用JNZY系列增强型绝缘导线专用耐张线夹，直接将绝缘导线紧固在线夹内(不须剥除绝缘层),而且能承受较大的导线张力。要求块内芯作成螺纹状以增加摩阻力,避免导线在线夹中滑动,增大线夹和导线的接触面积,减少线夹和导线的夹角.10kV架空线路中，干线和干线搭接、干线和支线连接，一般采用楔形线夹（外罩绝缘防护罩），如有特殊要求时，也可以采用10kV绝缘穿刺线夹。152验电接地环 10kV架空线路每处耐张段及柱上断路器两端均需安装验电接地环。接地环采用楔型线夹或绝缘穿刺线夹与导线连接，其裸露的金属部分供验电和接地用。153 绝缘子的选用10kV架空线路绝缘子分为瓷绝缘子和合成绝缘子两大类，瓷绝缘子可在直线杆、直线转角杆和耐张杆上使用。瓷绝缘子价格便宜并且在线路中运行多年，安全可靠，合成绝缘子近几年由输电线路逐渐推广使用至配电线路，主要用于耐张方式，价格略高但具有重量轻、爬距大、防污性能好的特点。绝缘子型号表：瓷绝缘子合成绝缘子支持方式P-15T耐张方式XP-70FXBW-10/7016杆型选取和使用161 杆高选择 本通用设计采用环形钢筋或钢管杆，环形钢筋混凝杆的杆高定为15m.18m；钢管杆采用13m和16m。15m钢筋混凝土电杆和16m钢管构成一使用系列。15m钢筋混凝土电杆及13m钢杆适用于单回路及双回路线路，18m钢筋混凝土电杆及16m钢杆则适用于三回路线路。（本通用图以15m电杆为例，标注安装尺寸，如采用其它杆高请参照设计规范）162 使用档距1621本通用图册所列所有直线杆及直线转角杆、耐张转角杆均按水平档距为60m、垂直档距70m、最大使用档距80m进行设计。1622“超过80m的使用档距”的特殊情况需进行相应的杆塔、基础及电气设计，不属本次设计考虑范围。1623 水平档距超过60m且不大于80m的电杆在使用时，设计人员根据导线线规、使用档距、转角情况进一步校验杆身强度及基础的稳定和强度，并最终选定合适的杆型。164电杆规格及根部许用弯矩1641 本设计以湖北省中南水泥制品有限责任公司的产品为参考，要求选用抗震、抗剪、抗弯性能均优越的非预应力环状钢筋混凝土杆或部分预应力环状钢筋混凝土杆。严禁使用预应力杆。电杆弯矩及适用条件见下表规定值：电杆规格标准弯矩（kN.m）适用条件非预应力190*15 mG630双回JKLYJ-240导线，档距60m以下直线杆、打拉线的耐张杆190*18mG700部分预应力杆190*15 mBY630190*18mBY700190*15mBY1000三回JKLYJ-240导线，档距75m以下直线杆、打拉线的耐张杆230*15mBY1200230*18mBY1180 直线如果带有低压线，应减少高压回路数或者降低档距选择杆型(本设计未考虑10kV杆塔同杆架设低压导线的情况，实际应用时设计人员应根据具体情况进行相关验算)。1642 非拉线耐张杆配电线路的部分预应力耐张杆首先要考虑选用拉线杆为耐张杆。对于城市电网在局部地段，架空线路由于条件限制耐张杆不能打拉线时，可以从下列杆型中选择，但适用范围没有裕度，不便于线路发展，因此应尽量少用非拉线耐张杆。电杆规格标准弯矩（kN.m）适用条件350*15 mBY2600单回JKLYJ-240高压+JKLYJ-120路灯高压，转角度小于30，档距小于50m 双回JKLYJ-185高压+JKLYJ-120路灯高压，转角度小于30，档距小于50m，导线安全系51643 AJSG系列钢管电杆本设计提供AJSG系列钢管电杆根部许用弯矩，以供设计人员选用，使用时应对特定的外荷载作进一步校验，将电杆根部弯矩（计算时需考虑附加弯矩的影响，将计算出的总弯距乘1.15得最终计算的电杆根部弯距）和下表提供的数据进行比较，并严格控制在下表许用范围这内：钢管型号根部许用弯矩（kN.m）AJSG4448AJSG5500AJSG7241AJSG8253AJSG9852AJSG10950AJSG13633AJSG14341AJSG181212AJSG191450所有钢管底部均设有调节螺母，可以调节电杆预偏值。为考虑钢杆在受外力时保持直立，钢杆在施工时杆梢应向受力反侧预偏，并根据逐渐积累的施工运行经验（预偏值一般为1/2杆梢1杆梢）确定预偏数值。17、基础目前由于施工条件的限制,施工中容易忽视基础的重要作用，监理、验收单位应加强对基础施工过程的监管。混凝土电杆的埋设采用0.8*0.8 m底盘加1.41. 6 m卡盘回填土夯实基础；350大直径电杆的基础考虑选用1.0m*1.0m*2.6m现浇混凝土基础，要求浇筑过程中分层捣实。钢管杆采用灌注桩基础预埋地脚螺栓。灌注桩基础可以采用旋转机械钻孔或人工挖孔后安放基础钢筋笼并连续浇铸混凝土。土质较差人工挖孔时，应采用砖护壁。所有电杆基础计算按以下条件考虑，均按地下水位较低（考虑地下1.0m见地下水）、土壤天然容重=16kN/m3、土壤浮容重=9kN/m3、回填土计算内摩阴角=30、土压力系数m =48kN/m3、土的侧压力系数=0.6、地基允许承载力R=100 kN/m2、粘性土凝聚力C=25 kN/m2 、粘性土内摩阴角=5、地面处最大允许位移为6 m m、桩侧土的侧向比例系数（水平位移6 m m）m=7500 kN/m4 进行考虑。土的计算容重0按1m以上取天然容重即0 =、1m以下取浮容重即0 =。对于不同地质条件下的基础使用请使用人员根据特定地质条件的实际情况、地下水位的实际高度对直埋基础的埋深、卡盘基础的卡盘规格、桩深及配筋重新进行核算后再使用。图序图纸名称图纸编号3-1单回路杆型图TD-XJ05-0101-01053-2双回路杆型图TD-XJ05-0201-01133-3单回（三回）电缆下线终端、上线始端杆安装单线图TD-XJ05-0301-01133-4单、双回路单、双侧带隔离刀闸柱上真空断路器安装单线图TD-XJ05-0401-01053-5变压器安装单线图TD-XJ05-0501-01023-6混凝土电杆基础图（卡盘、底盘、拉盘）TD-XJ05-0601-01033-7AJSG4、AJSG5转角杆图JSPD04-1-05-01113-8AJSG7、AJSG8转角杆图JSPD04-1-06-01113-9AJSG9、AJSG10转角杆图JSPD04-1-07-01083-10AJSG13、AJSG14转角杆图JSPD04-1-08-01063-11AJSG18、AJSG19转角杆图JSPD04-1-09-0107湖北省电力公司网配网工程典型设计2、线路电气部分21、导线架线弧垂表 导线型号为JKLYJ-10/150温度(-20至40C)档距(30至100m),安全系数为5时,弧垂如下:档距温度3035404550556065707580859095100-200.1860.3120.4750.6680.8861.1271.3911.6791.9892.3222.6783.0573.4583.8834.330-150.2250.3610.5280.7210.9381.1791.4431.7292.0392.3722.7273.1063.5073.9314.379-100.2680.4100.5780.7720.9891.2291.4921.7792.0882.4212.7763.1543.5563.9804.427-050.3120.4570.6270.8201.0371.2781.5411.8272.1362.4692.8243.2023.6034.0274.474000.3560.5030.6730.8671.0851.3251.5881.8742.1842.5162.8713.2493.6504.0744.521050.3980.5460.7180.9121.1301.3711.6341.9212.2302.5622.9183.2963.6974.1214.568100.4380.5880.7600.9561.1741.4151.6791.9662.2752.6082.9633.3423.7434.1674.614150.4750.6270.8010.9981.2171.4581.7232.0102.3202.6533.0093.3873.7894.2134.660200.5110.6650.8411.0381.2581.5011.7662.0542.3642.6973.0533.4323.8344.2584.706250.5450.7010.8781.0771.2991.5421.8082.0962.4072.7413.0973.4763.8784.3034.751300.5770.7360.9151.1151.3381.5821.8492.1382.4502.7843.1403.5203.9224.3474.795350.6080.7690.9501.1521.3761.6221.8892.1792.4912.8263.1833.5633.9664.3914.839400.6380.8010.9841.1881.4131.6601.9292.2192.5322.8683.2263.6064.0094.4354.883导线型号为JKLYJ-10/150温度(-20至40C)档距(30至100m),安全系数为6时,弧垂如下:档距温度3035404550556065707580859095100-200.2940.4700.6770.9121.1751.4641.7822.1262.4982.8973.3243.7784.2604.7695.306-150.3380.5150.7210.9561.2171.5071.8232.1672.5392.9383.3653.8194.3004.8095.346-100.3810.5580.7640.9981.2591.5481.8642.2082.5792.9783.4053.8594.3404.8495.386-050.4210.5990.8051.0381.2991.5881.9042.2482.6193.0183.4443.8984.3804.8895.425000.4600.6380.8441.0771.3381.6271.9432.2872.6583.0573.4843.9384.4194.9285.464050.4960.6750.8811.1151.3771.6651.9822.3262.6973.0963.5223.9764.4584.9675.503100.5310.7110.9181.1521.4141.7032.0202.3642.7353.1343.5614.0154.4965.0055.542150.5640.7450.9531.1881.4501.7402.0572.4012.7733.1723.5994.0534.5355.0445.580200.5950.7780.9871.2231.4861.7762.0942.4382.8103.2103.6374.0914.5735.0825.619250.6250.8101.0201.2571.5211.8122.1302.4752.8473.2473.6744.1284.6105.1205.656300.6540.8411.0521.2901.5551.8472.1652.5112.8833.2833.7114.1664.6485.1575.694350.6820.8701.0841.3231.5891.8812.2002.5462.9193.3203.7474.2024.6855.1945.732400.7090.8991.1141.3551.6211.9152.2342.5812.9553.3563.7844.2394.7225.2315.769导线型号为JKLYJ-10/150温度(-20至40C)档距(30至100m),安全系数为7时,弧垂如下:档距温度3035404550556065707580859095100-200.4110.6210.8641.1371.4431.7812.1512.5522.9863.4513.9494.4795.0415.6356.261-150.4500.6590.9011.1741.4791.8162.1862.5873.0203.4863.9844.5135.0755.6696.295-100.4870.6960.9361.2091.5141.8512.2202.6223.0553.5204.0184.5475.1095.7036.329-050.5220.7300.9711.2441.5481.8852.2542.6563.0893.5544.0524.5815.1435.7376.362000.5560.7641.0041.2771.5821.9192.2882.6893.1223.5884.0854.6155.1765.7706.396050.5870.7961.0371.3101.6151.9522.3212.7223.1563.6214.1194.6485.2105.8046.430100.6180.8271.0691.3421.6471.9852.3542.7553.1893.6544.1524.6815.2435.8376.463150.6470.8581.1001.3731.6792.0172.3862.7883.2213.6874.1844.7145.2765.8706.496200.6750.8871.1301.4041.7102.0482.4182.8203.2543.7194.2174.7475.3095.9036.529250.7020.9151.1591.4341.7412.0792.4492.8523.2853.7514.2494.7795.3415.9356.562300.7290.9431.1881.4641.7712.1102.4812.8833.3173.7834.2814.8125.3745.9686.594350.7540.9701.2161.4931.8012.1402.5112.9143.3493.8154.3134.8445.4066.0006.627400.7790.9961.2431.5211.8302.1702.5422.9453.3803.8464.3454.8765.4386.0326.659导线型号为JKLYJ-10/150温度(-20至40C)档距(30至100m),安全系数为8时,弧垂如下:档距温度3035404550556065707580859095100-200.5220.7621.0381.3511.7002.0852.5082.9663.4623.9944.5625.1685.8106.4897.204-150.5550.7941.0701.3821.7312.1162.5382.9973.4924.0244.5925.1985.8406.5187.234-100.5870.8251.1011.4121.7612.1462.5683.0273.5224.0544.6225.2275.8696.5487.263-050.6170.8561.1311.4421.7912.1762.5983.0563.5514.0834.6525.2575.8996.5777.293000.6470.8851.1601.4721.8202.2052.6273.0863.5814.1134.6815.2865.9286.6077.322050.6750.9131.1891.5011.8492.2342.6563.1153.6104.1424.7105.3165.9586.6367.351100.7020.9411.2171.5291.8782.2632.6853.1443.6394.1714.7395.3455.9876.6657.381150.7280.9681.2441.5571.9062.2912.7133.1723.6684.2004.7685.3746.0166.6947.410200.7540.9941.2711.5841.9332.3192.7423.2013.6964.2284.7975.4026.0446.7237.439250.7781.0201.2971.6111.9612.3472.7693.2293.7244.2574.8255.4316.0736.7527.467300.8021.0451.3231.6371.9882.3742.7973.2563.7524.2854.8545.4596.1026.7817.496350.8261.0701.3491.6642.0142.4012.8253.2843.7804.3134.8825.4886.1306.8097.525400.8481.0941.3741.6892.0412.4282.8523.3123.8084.3414.9105.5166.1586.8387.553导线型号为JKLYJ-10/150温度(-20至40C)档距(30至100m),安全系数为9时,弧垂如下:档距温度3035404550556065707580859095100-200.6250.8941.2051.5561.9492.3822.8573.3733.9304.5295.1695.8506.5727.3358.140-150.6540.9231.2331.5841.9762.4092.8843.4003.9574.5555.1955.8766.5987.3628.166-100.6820.9501.2601.6112.0032.4362.9113.4263.9834.5825.2225.9026.6257.3888.193-050.7090.9771.2861.6372.0292.4622.9373.4534.0104.6085.2485.9296.6517.4148.219000.7351.0031.3121.6632.0552.4882.9633.4794.0364.6345.2745.9556.6777.4408.245050.7601.0281.3381.6892.0812.5142.9893.5054.0624.6605.3005.9816.7037.4668.271100.7841.0531.3631.7142.1062.5403.0153.5304.0884.6865.3266.0076.7297.4928.297150.8081.0781.3881.7392.1322.5653.0403.5564.1134.7125.3516.0326.7557.5188.323200.8311.1011.4121.7642.1572.5903.0653.5814.1394.7375.3776.0586.7807.5448.349250.8541.1251.4361.7882.1812.6153.0903.6074.1644.7635.4036.0846.8067.5708.374300.8761.1481.4601.8122.2062.6403.1153.6324.1894.7885.4286.1096.8327.5958.400350.8981.1701.4831.8362.2302.6643.1403.6574.2144.8135.4536.1356.8577.6218.426400.9191.1921.5061.8592.2532.6883.1643.6814.2394.8385.4786.1606.8827.6468.451导线型号为JKLYJ-10/150温度(-20至40C)档距(30至100m),安全系数为10时,弧垂如下:档距温度3035404550556065707580859095100-200.7231.0221.3671.7572.1932.6753.2023.7754.3945.0595.7706.5277.3298.1779.072-150.7491.0471.3911.7812.2172.6993.2263.7994.4185.0835.7946.5507.3538.2019.095-100.7741.0721.4161.8052.2412.7233.2503.8234.4425.1075.8186.5747.3778.2259.119-050.7981.0961.4401.8292.2652.7463.2743.8474.4665.1305.8416.5987.4008.2489.142000.8211.1191.4631.8532.2882.7703.2973.8704.4895.1545.8656.6217.4248.2729.166050.8441.1421.4861.8762.3122.7933.3203.8944.5135.1775.8886.6457.4478.2959.189100.8661.1651.5091.8992.3352.8163.3443.9174.5365.2015.9116.6687.4708.3199.213150.8881.1871.5311.9212.3572.8393.3673.9404.5595.2245.9356.6917.4948.3429.236200.9091.2091.5531.9442.3802.8623.3893.9634.5825.2475.9586.7147.5178.3659.259250.9301.2301.5751.9662.4022.8843.4123.9864.6055.2705.9816.7387.5408.3889.283300.9501.2511.5971.9882.4252.9073.4354.0084.6285.2936.0046.7617.5638.4129.306350.9701.2721.6182.0102.4472.9293.4574.0314.6505.3166.0276.7837.5868.4359.329400.9901.2921.6392.0312.4682.9513.4794.0534.6735.3386.0496.8067.6098.4589.352导线型号为JKLYJ-10/185温度(-20至40C)档距(30至100m)，安全系数为5时,弧垂如下:档距温度3035404550556065707580859095100-200.1530.2350.3610.5190.7040.9121.1411.3901.6591.9482.2582.5872.9363.3053.693-150.1850.2790.4150.5780.7640.9711.2001.4491.7172.0062.3152.6442.9933.3613.750-100.2250.3280.4690.6340.8211.0291.2571.5061.7742.0632.3712.7003.0483.4173.805-050.2690.3780.5220.6890.8761.0841.3131.5611.8292.1182.4262.7553.1033.4723.860000.3140.4260.5740.7410.9291.1381.3661.6151.8832.1722.4802.8093.1573.5263.914050.3570.4740.6230.7910.9801.1891.4181.6671.9362.2252.5342.8623.2113.5793.968100.3990.5190.6690.8401.0301.2391.4691.7181.9872.2772.5862.9143.2633.6324.020150.4390.5620.7140.8861.0771.2881.5181.7682.0382.3272.6372.9663.3153.6844.073200.4770.6020.7570.9301.1231.3351.5661.8172.0872.3772.6873.0163.3663.7354.124250.5130.6410.7980.9731.1671.3801.6131.8642.1352.4262.7363.0663.4163.7864.175300.5470.6790.8381.0151.2101.4251.6581.9112.1832.4742.7853.1153.4663.8364.225350.5790.7140.8761.0551.2521.4681.7021.9562.2292.5212.8333.1643.5153.8854.275400.6100.7480.9121.0931.2931.5101.7462.0012.2742.5672.8803.2123.5633.9344.324导线型号为JKLYJ-10/185温度(-20至40C)档距(30至100m)，安全系数为6时,弧垂如下:档距温度3035404550556065707580859095100-200.2180.3600.5360.7390.9661.2181.4941.7932.1162.4642.8343.2293.6484.0904.557-150.2620.4100.5870.7891.0161.2671.5421.8412.1642.5112.8823.2763.6954.1374.603-100.3060.4580.6350.8371.0641.3151.5891.8882.2112.5572.9283.3223.7414.1834.649-050.3510.5030.6810.8841.1101.3611.6351.9342.2572.6032.9743.3683.7864.2284.695000.3930.5470.7260.9281.1551.4061.6801.9792.3022.6483.0193.4133.8314.2744.740050.4330.5890.7680.9711.1981.4491.7242.0232.3462.6933.0633.4583.8764.3184.784100.4710.6280.8091.0131.2401.4921.7672.0662.3892.7363.1073.5023.9204.3624.829150.5070.6660.8481.0531.2811.5331.8092.1092.4322.7793.1503.5453.9644.4064.872200.5410.7020.8851.0921.3211.5741.8502.1502.4742.8223.1933.5884.0074.4494.916250.5740.7370.9221.1291.3601.6141.8912.1912.5162.8633.2353.6304.0504.4924.959300.6050.7700.9571.1661.3981.6521.9302.2322.5562.9053.2773.6724.0924.5355.002350.6350.8020.9911.2011.4341.6901.9692.2712.5972.9453.3183.7144.1344.5775.044400.6630.8331.0241.2361.4701.7272.0072.3102.6362.9863.3593.7554.1754.6195.086导线型号为JKLYJ-10/185温度(-20至40C)档距(30至100m)，安全系数为7时,弧垂如下:档距温度3035404550556065707580859095100-200.3150.4960.7060.9441.2101.5031.8252.1742.5512.9553.3883.8484.3374.8535.397-150.3590.5400.7490.9861.2511.5441.8652.2142.5912.9953.4283.8884.3764.8925.436-100.4010.5810.7901.0271.2921.5851.9052.2542.6313.0353.4673.9274.4164.9325.475-050.4410.6210.8301.0671.3311.6241.9452.2932.6703.0743.50