GB/T 20062-2017 Translated English of Chinese Standard (GBT20062-2017): Mobile cranes -- Limits and measurement methods for operating noise
www.ChineseStandard.net, 30.07.2021 - 16 Seiten
This Standard specifies the limits for external radiated noise, and the limits and measurement methods for noise in operator??s cabin of mobile cranes. This Standard is applicable to the mobile cranes defined in GB/T 6974.2.
A-weighted sound power A-weighted sound pressure air-conditioning system Appendix applicable boom calculation calibration comply crane is unloaded Determination difference direction document door and window driving emitted environmental correction value exhaust device expressed in dB externally emitted fan or air-conditioning Figure Formula greater ground hemisphere immediately Information of Report Layout least Level in Operator’s Level of Measurement level refers lifting operations Limits and Measurement luffing Machinery Manufacturer Measure ment Sound measured value Measurement Conditions Measurement Methods Measurement Point measurement surface measuring instruments Methods for Operating microphone position Mobile Cranes modified see Chapter NOTE Number of Measure Operating Noise Operator’s Cabin LpA,T Parameters perform power level LWA power of engine pressure level LpA,T Prototype range read the measured Record refers sound power level sound pressure level speed of engine Standard stipulations of GB/T Telescopic Temperature time-averaged A-weighted sound turned Version weighted wind speed