Electrical wiring is installed by electricians.

供电线路由电工安装。

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Endeavour was set to launch in late April, but an electrical problem in a heater circuit forced a delay. Engineers replaced the switchbox and installed new wiring.

奋进号原订四月下旬发射，但是由于加热器中电路发生问题，被迫延期。工程人员更换了电路开关盒，并且安装了新线路。

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They updated the plumbing and electrical wiring and installed a new red-slate roof.

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Walls were put up, and new plumbing and electrical wiring was installed.

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Bridge operator's Forth Estuary Transport Authority (Feta) maintenance workers have installed several miles of ductwork to accommodate electrical wiring.

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