When the equipment is normally running, opening the power cabinet door and insulated guard board of furnace body is strictly prohibited.

设备正常运行时，严禁打开电源柜门和炉体的绝缘护板；

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Insulated hand tools should be used when working on or around electrical equipment.

操纵电器或在电器四周工作，应当使用尽缘的手工具。

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It is recognized that the gas density relay can reflex the gas density in gas insulated electric equipment correctly and the pressure relay cant do the same.

一般认为气体密度继电器可以正确反映气体绝缘电气设备的气体密度，而压力继电器则不能。

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Humbled by his brief sojourn as a coal miner, he turned over his equipment to an experienced operator and retreated to the more predictable--and insulated--business of collecting a royalty on every tonne that came out of his ground.

FORBES: Magazine Article

Humbled by his brief sojourn as a coal miner, he turned over his equipment to an experienced operator and retreated to the more predictable--and insulated--business of collecting a royalty on every ton that came out of his ground.

FORBES: Fuel's Paradise

Sociologists could have a field day with this question, but the explanation could be something as simple as the fact that people who live in cities are relatively insulated from how difficult and challenging it can be to produce the food, energy, equipment, devices, etc.

FORBES: What Explains The Partisan Divide Between Urban And Non-Urban Areas