Some customers may experience longer outages if power surges cause equipment failure during the restoration process.

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Gym owners got instructions to disconnect every piece of workout equipment from the wall to prevent damage during power surges.

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Circuit boards are double-insulated to protect against power surges, and there are backup power supplies that can be switched out on the fly.

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There are further cost issues in upgrading the national grid to cope with power surges and the need to switch between different power sources.

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Customers can minimize power surges by turning off appliances, lights and other equipment, except for one task light to determine when power has been restored.

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Constant devaluations of the ruble, power surges, shortages of sugar and a bad water supply conspired to make this quite an ordeal--"like ten years in purgatory, " he recalls.

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They're hot, rarely cleaned and subject to power surges.

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Damage to the grid: Power surges and electrical system failure due to high loads can cause power outages and damage to BC Hydro equipment and infrastructure, including the premature failure of distribution transformers.

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Businesses big and small across the impacted region braced for the bill amid fears of power outages, storm surges and lost productivity.

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Every power system needs spare capacity to deal with surges, supply disruptions and so on.

ECONOMIST: Charlemagne