推荐回答（3个）
电缆表面距地面的距离不应小于0.7m，穿越农田时不应小于1m，且电缆应埋在冻土层以下。
在电缆引入建筑物、与地下建筑物交叉及绕过地下建筑物处等受条件限制时，可浅埋，但应采取保护措施。
在电缆线路路径上有可能使电缆受到机械性损伤、化学作用、地下电流、振动、热影响、腐植物质、虫鼠等危险的地段，均应依据规范要求采取保护措施。
电缆在拐弯、接头、交叉，进出建筑物等地段应设明显的方位标桩。电缆直线段每隔50-100处应加设间距适当的路径标桩。标桩应牢固，标志应清晰，标桩露出地面以15cm为宜。
扩展资料
电缆线路所需敷设的电缆保护管应加工好并放置现场。电缆保护管的加工应符合以下要求：
①管口应无毛剌和尖锐棱角，管口宜做成喇叭形。
②电缆管在弯制后，不应有裂缝和显著的凹瘪现象；电缆管的弯曲半径不应小于所穿入电缆的最小允许弯曲半径。
③金属管应在外表涂防腐漆或涂沥青。
电缆放线架应放置稳妥，钢轴的强度和长度应与电缆盘重量和宽度相配合。
电缆敷设可用人力拉引或机械牵引。用机械的最大牵引强度宜满足表-1的规定，其速度不宜超过15m/min，且应在牵引头或钢丝网套与牵引钢缆之间装设防捻器。
参考资料来源：百度百科-直埋电缆
电缆埋设深度，电缆之间的净距，与其它管线间接近和交叉的净距，应符合下列规定
（1）电缆直埋深度（由地面至电缆外皮）0.7米；
（2）电缆外皮至地下建筑物的基础0.6米，但最小谢绝小于0.3米；
（3）电缆与电缆相互间水平接近时，最小净距0.1米；不同部门的电缆相互间0.5米；
（4）电缆相互交叉时的最小净距0.5米，在交叉点前后一米范围用隔板隔开可降低为0.25米，穿管交叉不作规定；
（5）电缆与热力管道、煤气、石油管道接近时的净距2米；交叉时的净距离0.5米。
电缆直埋敷设时，沟底必须具有良好的地层，不应有石块、砖头等其它硬制杂物，否则应铺以100毫米厚的软土或沙层，然后盖以混凝土保护板，覆盖宽度应超出电缆直径两则各50毫米。但在谢绝已的情况下，也允许用砖代替混凝土保护板。
GB50054-95：低压配电设计规范 - 电缆在屋外直接埋地敷设的深度不应小于700mm； 当直埋在农田时，不应小于1m。应在电缆上下各均匀铺设细砂层，其厚度宜为100mm， 在细砂层应覆盖混凝土保护板等保护层，保护层宽度应超出电缆两侧各50mm。 在寒冷地区，电缆应埋设于冻土层以下。当受条件限制不能深埋时，可增加细砂层的厚度，在电缆上方和下方各增加的厚度不宜小于200mm。
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