共找到 150 條與 空載聲功率級(jí) 相關(guān)的標(biāo)準(zhǔn)，共 10 頁(yè)
本標(biāo)準(zhǔn)規(guī)定了木工平刨床空載時(shí)的噪聲聲功率級(jí)
Woodworking flat planer Noise sound power level limit
Measurement method of sound power level of machine without load and with load
本標(biāo)準(zhǔn)規(guī)定了電力變壓器的空載聲功率級(jí)和負(fù)載電流聲功率級(jí)相加的A計(jì)權(quán)聲級(jí)限值。本標(biāo)準(zhǔn)適用于電壓等級(jí)為6 kV一1000 kV級(jí)的硅鋼鐵心油浸式電力變壓器和電壓等級(jí)為6 kV一35 kV級(jí)的硅鋼鐵心干式電力變壓器。本標(biāo)準(zhǔn)不適用于非晶合金鐵心電力變壓器。其他類型的變壓器可參照采用本標(biāo)準(zhǔn)
6kV~1000kV power transformer sound level
本標(biāo)準(zhǔn)規(guī)定了6kV～500kV級(jí)電力變壓器的空載聲功率級(jí)和負(fù)載電流聲功率級(jí)相加的A計(jì)權(quán)聲級(jí)限值。 本標(biāo)準(zhǔn)適用于電壓等級(jí)為500V及以下油浸式和35kV級(jí)以下的干式電力調(diào)壓器。 對(duì)于其他類型的變壓器可參照采用本標(biāo)準(zhǔn)。 注：本標(biāo)準(zhǔn)規(guī)定的聲級(jí)限值不適用于非晶體合金鐵心變壓器，非晶合金
Sound level for 6kV～500kV power transformers
Sound power levels of noise sources-Survey method for determination of sound power levels of noise sources
本標(biāo)準(zhǔn)規(guī)定了在混響測(cè)試間內(nèi)測(cè)定風(fēng)機(jī)聲功率級(jí)的方法。凡符合本標(biāo)準(zhǔn)要求的試驗(yàn)室可以使用本方法。 本標(biāo)準(zhǔn)適用于空調(diào)設(shè)備和空調(diào)系統(tǒng)所使用的通風(fēng)機(jī)。 本標(biāo)準(zhǔn)不適用于貫流風(fēng)機(jī)、家用電扇及在易燃、易爆、粉塵濃度高的環(huán)境中工作的通風(fēng)機(jī)。 本標(biāo)準(zhǔn)僅適用于以空氣為介質(zhì)符合本標(biāo)準(zhǔn)規(guī)定
Reverberant room method for sound power level testing of ventilators
Useful for equipment that cannot be removed for acoustical testing
Sound power levels of noise sources-Survey method for determination of sound power levels of noise sources using a reference sound source
Sound power levels of noise sources-Precision methods for determination of sound power levels for sources in anechoic and semi-anechoic rooms
Test Method For Determining A-Weighted Sound Power Level Of Central Vacuum Power Units
Sound power levels of noise sources-Precision methods for determination of sound power levels for broad-band sources in reverberation rooms
Sound power levels of noise sources-Precision methods for determination of sound power levels for broad-band sources in reverberation rooms
Electrically propelled road vehicles - Airborne acoustical noise of vehicle during charging with on-board chargers - Determination of sound power level
This standard specifies the procedure for measurement of the airborne acoustical noise emissions of electrically propelled road vehicle from category
Electrically propelled road vehicles - Airborne acoustical noise of vehicle during charging with on-board chargers - Determination of sound power level
Sound power levels of noise sources-Engineering methods for determination of sound power levels for sources in special reverberation test rooms
Sound power levels of noise sources-Engineering methods for determination of sound power levels for sources in special reverberation test rooms
