Possible hazards
The below list of some possible hazards is based on the above standards.
- Hazards due to incorrect behavior of operator: Only trained personnel shall install, operate, test and inspect hose assemblies. Hazards may arise from the use of unsuitable substances or components by the operator, especially in case the application limits defined by the manufacturer are exceeded (e.g. too high pressure, too high tensile loads).
- Hazards due to escaping media: Water escaping at high pressure can cause personal injury and property damage – The escape of flammable media can cause fire – The escape of toxic media can cause intoxication if these are inhaled or ingested.
- Hazards because of whipping hose assemblies: If after a break, hose separates from end fitting or ruptures / bursts the hose assembly pressure may not immediately be reduced to zero and the hose starts whipping, which may cause personal injury or property damage.
- Hazards due to change in length of the hose assembly: In the event of a sudden pressure change in the hose assembly, its length may change by +-2%. This may lead to the operators losing their safe foothold.
- Hazards due to static electricity: An electrostatic charge can be generated by the water flowing through and / or friction on the top cover. If the electrostatic charge is not dissipated, an electrostatic discharge may occur. This can lead to an explosion and/or fire in a potentially explosive area.
Links
Table of contents of hose assemblies in water jetting
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