Introduciton To RPE And PSS 7000 Set

Question 1

What RPE does the LFB provide to be used at incidents and in training?

Answer 1

Breathing apparatus – SDBA and EDBA. Respirators.

Powered respirator protective suits.

Question 2

Respiratory hazards can be divided in the following way:

Answer 2

Acute – immediate risk.
Chronic – long term risk.
Airborne particulates - dual purpose face masks (DPFM) with a particulates filter cartridge (FC)

Question 3

What policy number relates to RPE?

Answer 3

Policy number 466

Question 4

Define respiration?

Answer 4

The transport of oxygen from the outside air to the cells within tissues, and the transport of CO2 in the opposite direction.

Question 5

Air inhaled from the atmosphere or compressed in a BA cylinder contains approximately 21% oxygen and 0.04% c02 and air exhaled is

Answer 5

16% oxygen and 4% co2

Question 6

What factors influence consumption rates?

Answer 6

Physical exertion.
Physical fitness.
Stress.

Question 7

Name four ways the human body dissipates heat?

Answer 7

• Radiation - heat floors from hotter to cooler bodies. PPE, RPE and high ambient temperature prevents this flow
• Vaporisation - blood is cooled in the lungs by air.
• Convection - air flowing over the body to cool it. PPE and RPE prevent this.
• Evaluation - sweat evaporating from the body. PPE and RPE makes this minimal

Question 8

What psychological effects does heat stress have on the body?

Answer 8

A deterioration in: Coordination. Manipulation. Visual skills. Reasoning.

Question 9

What physical effects does heat stress have on the body?

Answer 9

Heat cramps.
Heat exhaustion.
Heat stroke (medical emergency).

Question 10

How much water should the average person need to consume to stay well hydrated?

Answer 10

2 - 3 litres per day. And half a litre after 30mins of BA work

Question 11

What methods can be put in place to limit the effects off heat stress and dehydration?

Answer 11

Rotation of BA crews.
Using a holding/recovery area in the shade.
Ensure a supply of drinking water.
Reserve crews should be encouraged to relax dress.

Cool hands, wrists and arms in water (radial cooling).
Firefighters waiting to wear BA should avoid high levels of physical activity. The attendance of the LAS to oversee welfare of crews and BA teams.

Question 12

The breathing apparatus set currently in use by the LFB is?

Answer 12

The Drager PSS 7000 Breathing Apparatus Set.

Question 13

What is the working duration for the SDBA?

Answer 13

31 mins at 50 litres per minute.

Question 14

How much does this set weigh when ready for use?

Answer 14

15.5 KG

Question 15

What is STOPCAB?

Answer 15

Self contained 
Two stage 
Open circuit 
Positive pressure 
Compressed 
Air 
Breathing apparatus set

Question 16

Name four features of STOPCAB?

Answer 16

Positive pressure, first breath activated.
Speech diaphragm.
Additional flow button.
Stable air supply with low breathing resistance.
The FPS 7000 is a dual-purpose facemask and can be converted to a respirator by removing the LDV and attaching a filter cartridge.

Question 17

GPS 7000 mask feature

Answer 17

• Impact and scratch resistant polycarbonate visor
• 5 strap adjustable harness
• Neck strap
• Inner mask to stop misting
• Dual purpose face mask (DPFM) Can be converted into a Respirator mask by taking off the lung demand valve and relaxing with filter cartridge

Question 18

When can respirators NOT be used?

Answer 18

In oxygen deficient, or toxic atmospheres

Question 19

What is the function of the Lung Demand Valve (LDV)?

Answer 19

To supply air at a breathable pressure to meet the demands of the wearer.

Question 20

What kind of couplings are on the ‘Inline’ and ‘Second person connection’?

Answer 20

Quick release couplings (QRC)

Question 21

What is the function of the reducer?

Answer 21

To assist with the reduction of cylinder pressure to a breathable pressure.

Question 22

Describe the three non-kink rubber hoses that lead from the reducer?

Answer 22

High pressure to the electronic management unit. Medium pressure to the LDV.
Medium pressure to the second person connection.

Question 23

Hose pressure

Answer 23

High pressure hose 300bar Medium pressure hose 6-9 bar Second person connection 6-9 bar

Question 24

Name some features of the bodyguard 7000?

Answer 24

Monitors available air pressure of cylinder.
Time to Warning (TTW) – numeric display.
Time of Warning (TOW) – flashing LEDs and audible. Visual LED indicators: Green – operational mode / key removed. Red / Blue – warning mode. Blue – telemetry signal.
Motion sensor and auto distress signal unit (ADSU).
Button activated Manual distress signal unit (DSU).
Backlight.

Question 25

The low battery warning signal operates when the battery drops below 5.5 volts. How long is it acceptable to use the set for after this?

Answer 25

2 hours

Question 26

At what pressure will the electronic and the pneumatic low-pressure warnings operate?

Answer 26

84 and 74 bar (+/- 5bar) respectively.

Question 27

The pneumatic warning is provided as a safety margin for BA wearers. How long is this period

Answer 27

10 mins at 50 litres per minute.

Question 28

A BA tally is used for safety control procedures to record the details of each wearer. What colour are they?

Answer 28

Yellow for SDBA.

Red for EDBA.

Question 29

What information should be added to the tally using a chinagraph pencil?

Answer 29

The role and name of wearer.
The cylinder pressure.
The entry time into the risk area (using ECB clock).