问题 问答题 简答题

《110KV及以上送变电工程启动及竣工验收规程》规定,送电线路启动带电必须具备的条件有哪些?

答案

参考答案:

承担线路启动试运行及维护的人员已配齐并持证上岗,试运行指挥组已将启动调试运行方案向参加启动试运人员交底。

线路的杆塔号、相位标志和设计规定的有关防护设施等已经检查验收合格,影响安全运行的问题已处理完毕。

线路上的障碍物与临时接地线(包括两端变电站)已全部拆除。

已确认线路上无人登杆作业,危及人身安全和安全运行的一切作业均已停止,已向沿线发出带电运行通告,并已做好启动试运前的一切检查维护工作。

按照设计规定的线路保护(包括通道)和自动装置已具备投入条件。

送电线路带电前的试验。

单项选择题
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阅读理解

     Attempt a guess at the following question: In the English-speaking world, which country has the least

affordable homes? You are wrong if you guessed the US, even with the housing bubble (气泡) and main

sadness.  Nor is it the UK, where prices have risen because demand is far from supply.  According to a

recent survey of 227 cities around the globe, you must go south of the equator (赤道) to Australia to find

the priciest homes.

     The report measured a city's housing market along the following guidelines.  An "affordable" home

required three times or less of the average family's income to purchase.  At four times earnings, a home fell into the "unaffordable" category.  And a "seriously unaffordable" home needed five times a family's income.  In Australia, homes in the least affordable city cost just about 9. 5 times the average income.  Sydney,

Perth, and Melbourne were only a little under this figure.

     Australian officials offered little comment, apart from a general statement on the dismal findings.  These prices make the possibility that many Australians will one day own a home largely unbelievable.  Land

rationing (配给制) and excessive development charges have raised prices, and the problem will only be

solved through urgent action by the Rudd government.

     Some American cities were also included on the least affordable list, four of which were in California.  America is still involved in a mortgage(抵押)crisis, though, affecting the affordability of homes.  Yet a

number of US cities garnered "affordable" status, namely Dallas and Kansas.  Australia had no cities listed

in the top fifty places with affordable homes.

     The survey suggests that you can find affordable homes in most places, just not if you're Australian and choose to live down under.

1. To buy an affordable house, you should pay _____. 

A. 3 times or less of the average family's income

B. 4 times or less of the average family's income

C. 5 times or less of the average family's income

D. 9. 5 times or less of the average family's income

2. What caused the prices of houses to increase in Australia?

A. The rising family's income. 

B. The demand over supply. 

C. The excessive development charges. 

D. The decrease of land.

3. The underlined word "dismal" in Paragraph 3 may mean _____. 

A. cheerful      

B. satisfactory 

C. difficult        

D. gloomy  

4. What might be the most suitable title for the passage?

A. Affordable Houses

B. A House is a Dream First

C. Housing Bubble

D. Homes Too Expensive