Standard on Open-Circuit Self-Contained Breathing Apparatus (SCBA) for Emergency Services, 2007 Editiondoi:NFPA(Fire) 1981NFPA发布的代码和标准在NFPA的许可下显示为只读,仅供本系统使用.NFPA材料不得下载,打印,复制或转让.遵循NFPA 1981 2007版的最新要求,最大限度地保护SCBA用户!NFPA 1981为应急服务人员使用...
En137 Approved Self-Contained Open-Circuit Positive Pressure Air Breathing Apparatus (SCBA) The self-contained positive pressure air breathing apparatus of KL99 series, which is a kind of isolated protective breathing equipment, provides respiratory protection fo...
(see Note G) tPHZ/tPZH S1 6V 6V 6V Timing Input Data Input Input Output LOAD CIRCUIT 1.5 V tsu th 1.5 V 1.5 V VOLTAGE WAVEFORMS SETUP AND HOLD TIMES 2.7 V 0V 2.7 V 0V 1.5 V 1.5 V 2.7 V 0V tPLH tPHL 1.5 V VOLTAGE WAVEFORMS PROPAGATION DELAY TIMES 1.5 V 3V VOL Input tw ...
(see Notes E and G) tPHZ/tPZH S1 VLOAD VLOAD VLOAD LOAD CIRCUIT VCC 1.8 V ± 0.15 V 2.5 V ± 0.2 V 3.3 V ± 0.3 V 5 V ± 0.5 V INPUT VI tr/tf VCC ≤ 2 ns VCC ≤ 2 ns 3 V ≤ 2.5 ns VCC ≤ 2.5 ns VM VCC/2 VCC/2 1.5 V VCC/2 VLOAD 2 × VCC 2 × VCC 6V...
(see Note A) LOAD CIRCUIT Input 1.5 V 1.5 V 3V 0V High-Level Pulse Low-Level Pulse 1.5 V tw 1.5 V 1.5 V 1.5 V tPLH In-Phase Output tPHL Out-of-Phase Output 1.5 V 1.5 V tPHL VOH 1.5 V VOL tPLH VOH 1.5 V VOL VOLTAGE WAVEFORMS PULSE WIDTHS VOLTAGE WAVEFORMS PROPAGATION DELAY ...