Electrical power line and cable workers construct, maintain and repair overhead and underground electrical power transmission and distribution systems.

电源线和电缆工人建造，维护和修复架空线和地下电力传输和配电系统。

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Cable television maintenance technicians maintain and repair cable television transmission and distribution systems and associated hardware.

有线电视维修技术人员维护和修理有线电视传输和配电系统及相关硬件。

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Inspect, test and repair cable and satellite television signals and associated equipment at subscriber's premises.

检查，测试和维修用户住所的有线电视和卫星电视信号和相关设备。

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The A1 was closed between junction 17 at Haddon and the A47 at Wansford as engineers worked to repair an electricity cable spanning the road.

BBC: A1 in Cambridgeshire reopens after fatal plane crash

If a cable does fail, a repair ship is dispatched to lift both ends to the surface using grappling hooks and fuse the ends back together a slow, expensive process.

WSJ: A Dive Into the Digital Deep