2013年9月16日星期一

Low power high harmonic pollution is rising

Electrical construction electrical design basis is the most important documents, the main factors affecting the quality of the project are: the design file is executed in strict accordance with state regulations, the depth of the design and construction documents relevant professional close coordination between the degree. Therefore, the electrical design of the whole project a top priority. Decline in quality design is particularly serious in recent years. There may be multiple reasons, such as the design of the vicious competition, lower prices between companies,  Electric transformer units to reduce inputs in order to reduce costs and so on. However, these symptoms are not chronic, as long as the design unit attached importance recurrent organizational design personnel to learn the relevant design standards and  electric meter  the design process of supervision,  mcb circuit breaker  review, you can basically solve such problems, but such small changes it can make project supervision and construction will benefit. Affect the quality of several electrical engineering design problems violate or deviate from the design Electrical design specification With the popularity of various household appliances, low-voltage power high harmonic pollution is increasing, times and odd harmonic multiples constitute neutral current, neutral overcurrent and thus lead to the phenomenon of electrical fires is also increasing.

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