飞行翻译_公务机_公务航空_Business Jet_Business Aviation

PROTECTIVE BREATHING EQUIPMENT (Cont)
3.  Place both hands inside the neckseal opening with palms facing each other and PBE visor facing downward with the oxygen generating canister resting on the tip of the hands.
STEP 3
4.  With the top of the head bent forward, guide the PBE neck-seal over the top of the head and down over the face using the hands to shield the face and glasses from the oronasal mask cone.
STEP 4 
5. With both hands, grasp the adjustment straps at the lower corners of the visor and pull outward sharply to actuate the starter candle. Within 1-5 sec-onds, a rushing noise of oxygen entering the hood will be heard and infla-tion will be evident 
. WARNING  Human hair is highly flammable. Hair that protrudes through the neckseal could ignite if brought into direct contact with flame. 
STEP 5 
6. With the straps still in hand and head bent forward, pull backward to secure the oronasal mask cone high on the nose for a tight seal. 

STEP 6
Volume 2 Flight Crew Operating Manual Sep 13/2004 CSP 100-6 REV 1
08-01-14
EMERGENCY EQUIPMENT (Cont) PROTECTIVE BREATHING EQUIPMENT (Cont) 7. If wearing glasses, you may adjust their position to rest on the tip of the oro-nasal mask cone by moving the sides of the frame through the hood fabric. Do not attempt to adjust through the neckseal as this will result in infiltra-tion of the surrounding atmosphere into the interior of the hood. 
8. When the neckseal is positioned at the neck and the oxygen generating can-ister is resting on the nape of the neck, remove the hands, checking to see that clothing is not trapped in the seal and hair does not protrude between the seal and the neck. Pull the protective neck shield down to cover the col-lar and upper shoulder area.  STEP 7 
STEP 8 

Following actuation, the hood will inflate over a 15-20 second period. After this period, the starter candle will cease flowing and the only sound will be a slight rustling of the fabric on each inhalation and exhalation. Dependent upon breathing rate, there will be a slight exhalation resistance as the exhaled breath is forced through the oxygen generating canister. Inhalation resistance will be almost unrecognizable since inhalation is directly from the interior of the hood through a diaphragm type check valve located at the base of the oronasal mask. The visor should remain clear of fogging or misting. Heat is produced by both the chemical air regeneration process and transfer of body heat during the rebreathing cycle. Heat build-up within the hood is normal and is dependent upon the amount of work performed. There should be no irritating or strong unusual odors within the hood. Operational duration is variable dependent upon the amount of work performed by the user. If the PBE is worn to exhaustion of the chemical regeneration system, this will be evidenced by a gradual reduction in the expended volume of the hood until the point that the hood is collapsed tightly around the head at the end of a full inhalation. Additionally, there will be a rapid buildup of heat and moisture in the hood as the canister loses its effectiveness. At this point, the wearer should immediately retire to a safe breathing area clear of flame and toxic fumes and remove the device.
　
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