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What are the precautions for fire hose wiring?

Update:20-11-2020
Summary:

Fire hose needs reasonable wiring in use 1. Unilateral […]

Fire hose needs reasonable wiring in use
1. Unilateral deployment

When deploying water lines on the road, you should pay attention to passing vehicles, and use one-sided deployment of the hose as the criterion to avoid crossing the road as much as possible to avoid the pressure of the vehicle causing the hose to break or the sudden high-pressure water impact on the pump to cause water hammer and damage the pump Or endanger the safety of disaster relief personnel.

2. Use water to protect the bridge

When the waterline deployment must cross the road, a water belt bridge should be arranged for the passage of vehicles, and special personnel should be assigned to direct traffic and remind passing vehicles.

3. Prevent electric shock

When deploying water lines, check whether there are high-voltage wires or electrical equipment in the on-site environment to prevent the risk of electric shock due to inadvertent wiring or electrical equipment contact.

4. Watch out for falling objects

When deploying the waterline, pay attention to whether the site environment is unstable, there are easily falling objects above, hanging objects on the outer wall of the building (such as advertising signs), flower pots, glass, wires... etc., especially to prevent passing under the front of the fire site ( There may be falling objects such as glass), try to extend the wiring from the adjacent arcade into the room to prevent people from falling or being injured by falling objects when deploying the waterline. If it is necessary to perform destruction operations, it is necessary to study the opportunities and directions to prevent accidental damage.

5. Watch out for collapses

When wiring, you should always pay attention to whether the internal and external structures of the building are stable and whether there is a possibility of collapse, so as not to endanger the safety of rescue personnel.

6. The hose is fully expanded

When deploying the waterline, the hose must be fully unfolded. The hose should be prevented from being inserted, knotted or too large to be transferred to the nozzle end due to waterproof pressure, which affects disaster relief efficiency and safety.

7. Make sure to continue

When deploying the waterline, it is necessary to confirm that the hose and nozzle male and female connectors are indeed connected (rotating test) to avoid accidental damage to the disaster relief personnel after pressurization.

8. Timely fix the waterline

When deploying the water line to a high place, pay attention to the weight of the water belt. If necessary, tie the water belt with a rope and choose a fixed support point.

9. The pressure drop required between the waterline of the same vehicle should not be too large

When the required pressure drop between the water lines of the fire truck is too large, the water should be independently discharged from different attack vehicles to prevent the friction loss between the water lines from being too large, resulting in uneven water pressure, (such as: the same fire truck pumps at the same time From the water line to the 6th floor and 1 line each on the 1st floor) to prevent the formation of local waterline pressure being too large or local waterline pressure being too small. (As a last resort, the driver can adjust the opening of the water outlet switch valve in time, and adjust the nozzle end pressure by adjusting the water output)

10. Ladder wiring safety

When laying the ladder, choose the proper position of the ladder (consolidated and level air). The double-section ladder must be erected stably, the end of the ladder must be placed on a firm and stable place, and the erection angle of the ladder body is preferably 75 degrees. Ensure that the personnel implement the ladder body assurance. If the ladder personnel need to work on the ladder, they should use ropes or lock legs to ensure and pay attention to prevent the load from overtaking the ladder.

11, the auxiliary hose is fixed on the ladder

Before ascending the double-section ladder, the nozzle hand passes the water belt through the bottom steps of the double-section ladder to form an S shape. The auxiliary water belt is fixed on the ladder to reduce the weight of the water belt.

12. Fix the hose connector when wiring vertically

When wiring vertically, the male and female connectors should be fixed with ropes and tied to a fixed point. The weight of the waterline should be distributed on the fixed point to prevent the waterline from being pulled down by gravity and slipping off.

13, prevent each other from shooting

When wiring and shooting water, do not shoot each other or catch fire due to improper location.

14, good water belt clip

 When the hose is damaged, the leak should be sealed with a hose clamp to avoid affecting the safety and efficiency of disaster relief.

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