We've taken 30 calls since strike action began at noon and we're still urging Londoners to Take Extra Care http://t.co/aQPiRqXM1Y
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Mayor of London Sadiq Khan is backing the scheme.
A spokesperson said the lightning strikes had left the "aircraft fuelling system unavailable."
Nearly 1,000 properties have been left without power, and road users have been warned of potentially hazardous conditions.