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油库由于电气化铁路、输油管道采用阴极保护,从而产生杂散电流,在油库设备设施上产生电位差,当进行卸油作业、检修管道时易产生火花,引燃混合气,发生火灾爆炸事故,因此,对油库容易出现杂散电流的场地和有易燃混合气存在的地方采取了以下防护措施:(1)对油库进行分区治理、绝缘隔离;(2)对电气化铁路在进库前采用绝缘轨缝、安装回流开关控制系统以保证取送油罐车时的正常作业;(3)在油库铁路专用线的钢轨、鹤管、输油管道、钢栈桥及油罐车上进行等电位连接并接地;(4)在输油管道的始末端或杂散电流可能流入的管段设置绝缘法兰;(5)在输油管道的隔离处或交叉处装设跨接导线。
Due to the electrified railway and oil pipeline, the oil depot adopts cathodic protection, resulting in stray current, resulting in a potential difference in the facilities and facilities of oil depots. When unloading operations and repairing pipes are prone to sparks, igniting the mixture and causing fire and explosion accidents, , The storied current prone to fuel depots on the premises and the presence of flammable gas has taken the following protective measures: (1) the oil depot for zoning control, isolation; (2) of the electric railway before entering the library using insulated rails Install the return switch control system to ensure the normal operation when picking up and transporting the tanker truck; (3) Make equipotential bonding and earthing on the rails, crane pipes, oil pipelines, steel trestle and tank trucks of the dedicated depot of oil depot; (4) An insulating flange shall be provided on the pipe end where the beginning or end of the oil pipelines may flow or where the stray current may flow in. (5) A jumper wire shall be installed at the isolation or intersection of oil pipelines.