hourly ratingとは 意味・読み方・使い方

名詞

hourly rating (複数形 hourly ratings)

1. (electrical engineering, rail transport) A measure of the maximum output, usually expressed in horsepower, that can be obtained from the motors of an electric locomotive for a period of one hour without the motors overheating. ^[1]
   • 1960 December, Cecil J. Allen, “Operating a mountain main line: the Bern-Lötschberg-Simplon: Part One”, in Trains Illustrated, page 743:

     The year 1926 saw the putting in service of the first of the magnificent 1-Co-Co-1 locomotives of Type Ae 6/8, which at the time of their construction, with their hourly rating of 4,500 h.p., were the most powerful single electric locomotive units in the world.