翻訳と辞書 Words near each other ・ Variable Rate Application ・ Variable rate debt obligation ・ Variable rate feeder ・ Variable Rate Technology ・ Variable refrigerant flow ・ Variable reluctance sensor ・ Variable renewable energy ・ Variable retention ・ Variable rules analysis ・ Variable seedeater ・ Variable shadowing ・ Variable shunt reactor ・ Variable skink ・ Variable soft coral ・ Variable Specific Impulse Magnetoplasma Rocket ・ Variable speed fire pump controller ・ Variable speed of light ・ Variable speed wind turbine ・ Variable splitting ・ Variable Star ・ Variable star ・ Variable star designation ・ Variable structure control ・ Variable structure system ・ Variable sunbird ・ Variable surface glycoprotein ・ Variable symbol ・ Variable translation control ・ Variable triplefin ・ Variable type Dictionary Lists mini英和辞書 mini和英辞書 Webster 1913 Latin-English FOLDOC Wikipedia English ウィキペディア

翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Variable speed fire pump controller ： ウィキペディア英語版 Variable speed fire pump controller A Variable Speed (VFD) Fire Pump Controller is a fire pump controller that is able to vary the speed of the motor depending on the demand of the fire pump, resulting in the ability to hold a constant discharge pressure. It differs from other industrial variable speed control devices because it is now considered a life safety device, and so must adhere to the more rigid standards set forth by (NFPA-20. ) ==History== Variable Speed Fire Pump Controllers were invented and released with a UL Listing for fire pump service in 2003 by (Master Control Systems, Inc. )〔Underwriters Laboratories. 14 January 2010 ("Pump Controllers, Fire ), 1-2.〕〔Master Control Systems, Inc. 6 January 2010 ("Variable Speed Fire Pump Controllers" )〕 Paragraph 10.5.5 in the 2003 edition of NFPA-20 recognized Variable Speed as an accepted method for operating the fire pump. Then in the NFPA-20 2007 edition, section 10.10 was added to clarify and enhance the previous standards. In addition to reading these standards, a detailed summary of them by James S. Nasby of Columbia Engineering can be found (on slides 7-11. ) In 2008 (Master Control Systems, Inc. ) became the first company to provide FM Approval for the controller. A full list of companies with FM Approval may be found (here. ) 〔Factory Mutual. 14 January 2010 ("Approval Guide" )〕 Variable Speed Fire Pump Controllers are now accepted by NFPA-20, Underwriters Laboratories (UL), and most recently Factory Mutual (FM) for fire pump applications. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Variable speed fire pump controller」の詳細全文を読む スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.