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11 Cards in this Set
- Front
- Back
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Requirements of a good hose |
Should be reliable in use Should be resistant to bursting Should not stretch excessively (5% in length 10% in diameter) Light and easy to handle Should be durable Should be able to hand dissent pressure of shock Smooth surface to reduce frictional loss |
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45 mm hose |
23 metres 9kg 4 lengths on appliance and 50% reserve Primarily carries by pumps and pump ladders |
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70mm hose |
23 metres in length Weighs 15kg 10 length on appliance 50% reserve |
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90mm hose |
Carried on hose laying units 4km in length 30 metres in length Weights 23.3 |
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150mm hose |
Carried on high volume pump |
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Hosereel hose |
Stored in a coiled drum Internal diameter 19mm 18.3 per length;4 carried in one coil On both sides of an appliance |
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Hard suction hose |
Made to withstand external pressure. Lift water from open supply Length 2.44 meters Diameter 100 mm Two carried on appliance |
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Care and repair of hose |
Hose should be ramped when laid across a road Hose not kinked when under pressure Hose should not be made up when frozen Hose should be under run and cleaned before stowing |
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How are hoses rolled and how often do they get switched out |
Dutch roll And switched out with reserve every 3 months |
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Hose damaged at incident |
Can use a hose bandage Replace new length as soon as possible Add over hand knot on both ends Roll on the male coupling |
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Test frequency of hose |
On acceptance After operational use Annually |
