17-01

Question 1

Who determines if PPV is appropriate.

Answer 1

The IC in consultation with the Ventilation Sector Officer will determine if PPV is appropriate and ensure all personnel are informed.

Question 2

The Ventilation Sector Officer will

Answer 2

• Ensure the the PPV is adequately monitored and performed safely
• Must control the opening of the exit and entry points and must have adequate communication with the fan operator and the exit person(communication ideally made face-face)

Question 3

Placement of the fan?

Answer 3

During fire operations, the PPV fan should be placed on the unburned side of the fire.

Question 4

When can the fan be turned on?

Answer 4

The PPV shall not be turned on until personnel are ready to make entry with a charged line, and an exit opening has been made.

Question 5

The exit opening location?

Answer 5

The ventilation exit opening should ideally be located as close to the fire as possible. (PPE and SCBA shall be worn)

Question 6

Effects of PPV and Adverse conditions

Answer 6

The IC should contact interior personnel to determine the effects of PPV. Adverse conditions resulting from PPV should be reported immediately to the IC.

Question 7

PPV is not recommended under the following conditions.

Answer 7

1-Potential for backdraft
2-Potential that ventilation may suspend combustible dust.
3-Potential of an explosive environment
4-Defensive exterior attack
5-Attic Fire
6-When the fire has broken through the wall interior cladding. i.e. drywall, panelling, lath and plaster, and involves the structure itself.