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Evaluating and rating the performance of staff in through the completion of work
Each region built its own Power Plants and all the power system on specific Voltage and freq. and that is not easy to change all of these power equipment in the whole sys ... See More
It is a very complicated question , because worldwide voltage output is different according to region and power requirement. voltage generation is dependent on capacity o ... See More
The voltage & frequency means the amount of power that you need to consume throw a network so if youneed much power for airconditioning in hot countries you have to u ... See More
It would be nice if the rating is uniformed worldwide. However, it is quite difficult and impractical to implement such idea as it would involve replacing a huge number ... See More