建築設備用語集

N

項目	英語
NAS電池	sodium sulpher battery
NBS法効率	dust spot efficiency by National Bureau of Standards
NC曲線	noise criteria curve
NEC	National Electrical Code
NEMA	National Electrical Manufacturers Association
NFPA	National Fire Protection Association
NOx	nitrogen oxide
NPSH	net positive suction head
NTSC方式	national television system commitee system