The grid today remains secure even when a single device, such as a high-voltage transmission line, fails.

目前的电力网路如果有一个装置损坏（如高压传输线）整个网路仍可不受影响。

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The precise location of high-voltage transmission line fault is of great significance and practical engineering value.

高压输电线路故障的准确定位具有非常重要的意义和工程实用价值。

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The electrical power grid is particularly vulnerable to these extra currents, which can infiltrate high-voltage transmission lines, causing transformers to overheat and possibly burn out.

相对于这些电流而言，电网极其脆弱。 这些电流混入高压传输线引起变压器过热且可能烧毁。

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Now there is growing concern that a really big storm might collapse much of the global electric grid, particularly in places with long high-voltage transmission lines such as Australia, Canada, China and the United States.

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The network of high-voltage "transmission" lines in the U.S. is rapidly aging and no longer can adequately support the country's growing demand for electricity.

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That is the reason why the current emphasis in China is on the construction of 500kv extra-high-voltage lines and long-distance power transmission.

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