Page 21 - Electrician - TT (Volume 1)

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Fig 9 Fig 10

Suitable for Class B fires. Best suited where contamination by deposits must be avoided. Not generally effective
in open air.
Always check the operating instructions on the container before use. Available with different gadgets of operation
such as - plunger, lever, trigger etc.

The general procedure in the event of a fire:
• Raise an alarm.
• Turn off all machinery and power (gas and electricity).
• Close the doors and windows, but do not lock or bolt them. This will limit the oxygen fed to the fire and prevent
its spreading.
• Try to deal with the fire if you can do so safely. Do not risk getting trapped.
• Anybody not involved in fighting the fire should leave calmly using the emergency exits and go to the designated
assembly point.
• Analyze and identify the type of fire. Refer Table1.
Table 1
Class ‘A’ Wood, paper, cloth, solid material

Class ‘B’ Oil based fire (grease, gasoline, oil) liquifiable gases
Class ‘C’ Gas and liquifiable gases
Class ‘D’ Metals and electrical equipment

Fire extinguishers are manufactured for use from the distance.
Caution
• While putting off fire, the fire may flare up
• Do not be panick belong as it put off promptly.
• If the fire doesn’t respond well after you have used up the fire extinguisher move away yourself
away from the fire point.
• Do not attempt to put out a fire where it is emitting toxic smoke leave it for the professionals.
• Remember that your life is more important than property. So don’t place yourself or others at risk.
In order to remember the simple operation of the extinguisher. Remember P.A.S.S. This will help
you to use the fire extinguisher.
P for Pull
A for Aim

S for Squeeze
S for Sweep

8 9

CITS : Power - Electrician & Wireman - Lesson 1- 4