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加州電力公司競相升級系統控制火災風險

zlxxm 于2019-10-25發布 l 已有人瀏覽
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加州電力供應商致力于降低風險,修剪樹木和使用絕緣電纜。他們也在重新考慮預防性斷電的程序。專家表示,新技術有助于降低風險,分布式電力生產可以減少高風險地區輸電
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California Power Companies Race to Upgrade Systems

加州電力公司競相升級系統

The power was deliberately cut through large swaths of Northern California to prevent wildfires, leaving 700,000 businesses at homes temporarily in the dark.24,000 customers also had their power cut in Southern California because of hot windy conditions.“A large part of the problem is climate change, electricity lines have been starting fires for a century,but generally those fires were pretty small. What’s changed and we saw in a dramatic and horrible way in paralyzed California last year is that the same sort of electric, electric line failure can now start a massive conflagration, which in that case killed 85 people.”

為了防止野火,加州北部大片地區特意切斷了電力供應,致使70萬家企業暫時處于黑暗中。南加州也有24000名用戶因為大風天氣而斷電。“很大一部分問題在于氣候變化,一個世紀以來,電線一直在起火,但一般來說,這些火災規模都很小。去年,我們在癱瘓的加利福尼亞州看到了一個戲劇性而可怕的變化,就是同一種電力、電線故障現在可以引發一場大規模火災,在那種情況下,造成了85人死亡。”

Pacific Gas and Electric, the Northern California company, whose equipment sparked that blaze, has again been criticized for its widespread precautionary power cuts.An expanding system of cameras and weather sensors provides real-time data, supplemented by images from space and human analysis, but they don’t catch all the problems.“In the last five years, about 50 to 60 percent of the fires that have started involving our system have been due to things flying into our lines,so there isn’t necessarily a failure of our system, it could be palm fronds, it could be other vegetation, it could be a critter.”

北加州公司太平洋天然氣和電力公司的設備引發了那場大火,它再次因其廣泛的預防性斷電而受到批評。一種不斷擴大的攝像頭和氣象傳感器系統可以提供實時數據,輔以來自太空和人類分析的圖像,但它們并沒有抓住全部問題。在過去的五年中,大約百分之五十至百分之六十因我們的電力系統引發的火災是由于進入我們線路的東西引起的,所以我們的系統不一定有故障,可能是棕櫚葉,可能是其他植物,可能是生物。”

Power providers work to reduce the risk, trimming trees and using insulated cables. They’re also rethinking procedures for precautionary power cuts.“The other which is being proposed is to have a committee rather than the utility make the shut-off decision, and the committee would include utility executives, but it would also include Public Safety officials and it would also include regulators and possibly politicians.”He says power companies in California are now liable for damages even when they’re not negligent, and that should be changed.

電力供應商致力于降低風險,修剪樹木和使用絕緣電纜。他們也在重新考慮預防性斷電的程序。“另一個提議是成立一個委員會,而不是由公用事業公司做出關閉決定,該委員會將包括公用事業公司管理人員,但也將包括公共安全官員,還將包括監管機構,也可能有政治家。他說,加州的電力公司現在有責任賠償損失,即使他們不是疏忽大意,但這應該做出改變。

Experts say new technologies help lower the risk, distributed power production could reduce the need for power lines in high-risk areas.“Together with local production of renewable electricity, like, for example, distributed solar and battery energy storage, those are also very important technologies for avoiding wildfires.”And fuel cell technology, the kind used in some new cars, allows for even more local power generation. They say the fire risk won’t go away but can be managed.

專家表示,新技術有助于降低風險,分布式電力生產可以減少高風險地區輸電線的需求。“與當地生產的可再生電力一起,例如分布式太陽能和電池儲能,這些也是避免野火的非常重要的技術。”而在一些新車中使用的那種燃料電池技術能產生更多本地發電。他們說火災風險不會消失,但可以控制。

Mike O Sullivan VOA news Los Angeles

美國之音洛杉磯新聞,Mike O Sullivan報道

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