JIS C7604:1985 pdfダウンロード。High Pressure Mercury Vapour Lamps 1.Scope This Japanese Industrial Standard specifies high pressure mercury vapourlamps principally utilizing the visible spectrum caused by mercury for lighting,hereinafter referred to as the “1amps” , to be operated by employing the ballastsspecified in JIs c 8110. 2.Definitions Besides in conformity with JIS Z8113 and JIS Z 8120, for the purposes ofthis standard, the following definitions apply : (1) rated wattage The rated wattage is the power marked on the lamp.(2)i starting A phenomenon to start electric arc discharge between main electrodes. . (3) warm-up time The time necessary for the lamp to...