问题 问答题 简答题

用电客户的供配电系统设计应遵循的依据是什么?

答案

参考答案:用电客户的供配电系统设计应遵循的依据是:

(1)应根据工程特点、规模和发展规划,正确处理近期发展和远期发展的关系,做到远近结合,以近为主,适当考虑发展的可能。

(2)必须从全面出发,统筹兼顾,根据负荷性质、用电容量、工程特点、所址环境、地区供电条件和节约电能等因素,合理确定设计方案。

(3)设计采用的设备和器材,应符合国家或行业的产品最新技术标准,并应优先采用效率高、能耗低、技术先进、经济适用的节能型定型产品,不得采用淘汰产品。

(4)供配电系统设计应执行最新的《供配电系统设计规范》、《10kV及以下变电所设计规范》、《低压配电设计规范》等,并应符合国家现行的有关标准和规范的规定。

单项选择题
填空题

Part 4


Questions 26-45


·Read the following passage and decide which answer best fits each space.
·For questions 26-45, mark one letter A, B, C or D on the Answer Sheet.
Participation (26) high school sports is not a constitutional right. (27) , it is a privilege, paid for by taxpayers, open to students who promise to (28) certain conduct requirements on and off the field. One of these promises is to (29) from using drugs. Drug use is a serious problem among high school students. Studies show that as many as 500, 000 high school students use muscle-pumping, life-destroying substances such as steroids. Many more use illegal drugs, (30) cause discipline problems and (31) the stage for lifelong (32) .
Drug testing works to (33) and identify use. That is why drug testing is required to compete in the Olympics, the National Collegiate Athletic Association and the National Football League. (34) drug testing was instituted by these organizations, use of performance- (35) drugs has been greatly reduced. We should want (36) in schools.
Indeed, many athletes (37) testing programs, and no wonder. Without testing, athletes have to choose between drug use and a competitive disadvantage (38) the field.
Those who challenge the need for drug testing may be forgetting (39) it is like be an adolescent. Peer pressure is enormous, and one of the few effective counter-weights is the fear of being caught. More importantly, once drug use is (40) , a school can (41) to the student before he or she gets addicted or arrested.
For 25 years, public schools (42) by federal judges and civil libertarians, with results everyone can see. It is time (43) decisions on how to run public schools locally (44) officials. There is nothing unconstitutional about asking those who gain the advantages of school-sponsored athletics to contribute to the safety of other players, the integrity of the game and their own well-being. The Supreme Court should leave these programs (45) .

A.elevating

B.promoting

C.lifting

D.enhancing