陕西省安康地区电网110kV火石岩变电站(其结线见示意图),主要供建设安康水电站施工用电,所带负荷多为大型高压施工设备.施工现场使用高压橡皮电缆接入用电设备.因工地钉子扎、汽车压、积水等原因,经常造成电缆绝缘损坏,使6kV系统常常发生单相接地短路.
李明良
doaj
[Effectiveness analysis of closed or limited open reduction and intramedullary nail fixation in treatment of Seinsheimer type Ⅴ subtrochanteric fracture]. [PDF]
Yao X +6 more
europepmc +1 more source
为了研究高压单芯电缆金属护套冲击电压的影响因素,本研究用PSCAD/EMTDC建立220 kV架空线-高压单芯电缆线路模型并仿真雷电绕击架空线后沿线入侵电缆的波过程,在工频运行条件下,通过改变电缆接地方式、电缆参数以及雷电流参数,研究对金属护套雷电冲击电压幅值的降低作用。结果表明:其他条件相同时,采用首端接地方式的不接地点金属护套雷电冲击电压幅值比末端接地方式和交叉互联接地方式降低约90 %;由于金属护套在交叉互联点发生换位,导致金属护套雷电冲击电压幅值最大相在第二个互联点处由侵入相变为非侵入相 ...
孙铭, 张周胜, 谢书凝, 张磊
doaj
[Thoughts and Prospects on Precision Control and Intelligent Positioning Robotic Systems Applied in Nasojejunal Feeding Tube Placement]. [PDF]
Qiu Y +9 more
europepmc +1 more source
[State-of-the-art in peripheral nerve injury diagnosis and therapy]. [PDF]
Sun J, Chen L.
europepmc +1 more source
[A simulation study of nerve fiber activation in the lumbar segment under kilohertz-frequency transcutaneously spinal cord stimulation]. [PDF]
Xu Q, Li X, Lu Z, Wu Y.
europepmc +1 more source
[Identification and Underlying Mechanisms of Immune Cell- and Senescence-Related Biomarkers in Atrial Fibrillation]. [PDF]
Huang W, Liu E, Fu H.
europepmc +1 more source
[Progress on reconstruction of proximal femur in the hemiarthroplasty for intertrochanteric fracture with distal fixated long stem]. [PDF]
Zhao Z +5 more
europepmc +1 more source
[Research progress on treatment of unstable intertrochanteric fractures in elderly patients with bone cement type femoral head replacement]. [PDF]
Zhang S, Ma J, Lu B, Ma X.
europepmc +1 more source

