共找到 150 條與 空載聲功率級(jí) 相關的標準，共 10 頁
Blank detail specification. Fixed power resistors (Assessment level H)
Detta dokument specificerar — indikatorer f?r att uttrycka byggnadens effektbehov f?r uppv?rmning, — f?rfarande vid best?mning av indikatorv?rden
Energy performance of buildings — Part 1: Classification of power need for space heating
Attenuators, Fixed, Space Level, Non Space Level, Coaxial Line (BNC Connectors), Frequency Range: DC to 4.5 GHZ, Class III, Low Power
ATTENUATORS, FIXED, SPACE LEVEL, NON SPACE LEVEL COAXIAL LINE (SERIES N), FREQUENCY RANGE: DC TO 18 GHz, CLASS III, MEDIUM POWER
Attenuators, Fixed, Space Level, Non Space Level, Coaxial Line (TNC Connectors), Frequency Range: DC to 18 GHz, Class IV, Low Power
Identification, recommended layout, supplementary and additional information, mechanical and electrical data, and inspection requirements for quality
Specification for harmonized system of quality assessment for electronic components - Blank detail specification: CW power amplifier travelling wave tubes up to 500 watts
MINING EQUIPMENT. ROTARY AIR-ENGINES. POWER RATINGS.
This specification covers the requiements for aircraft external electric power receptacles
Connectors, Receptacle, External Electric Power, Aircraft General Specification for
Attenuators, Fixed, Space Level, Non Space Level, Coaxial Line (SMA Connectors), Frequency Range: DC to 12.4 GHz, Class IV, Low Power
Harmonized system of quality assessment for electronic components. Blank detail specification. Small power transmitting tubes of anode dissipation up to 1KW.
ATTENUATORS, FIXED, SPACE LEVEL, NON SPACE LEVEL, COAXIAL LINE (SMA CONNECTORS), FREQUENCY RANGE: DC TO 12.4 GHz, CLASS IV, LOW POWER
Cross References: EN 62301 IEC 62301:2011 IEC 60050-131 IEC 60050-300 AS/NZS 4665.1:2005
BS EN 50563. External A.C. D.C. and A.C. A.C. power supplies. Determination of no-load power and average efficiency of active modes
Attenuators, Fixed, Space Level, Non Space Level, Coaxial Line (TNC Connectors), Frequency Range: DC to 18 GHz, Class IV, Low Power
Attenuators, Fixed, Space Level, Non Space Level, Coaxial Line (SMA Connectors), Frequency Range: DC to 12.4 GHz, Class IV, Low Power
本部分ISO 27327涉及空氣幕裝置聲學性能的測定。此外，它還可用于測定空氣幕裝置與輔助設備組合的聲學性能
Fans. Air curtain units. Laboratory methods of testing for sound power
