PROTECTION AGAINST HOSE DAMAGE AND POTENTIAL PERSONNEL INJURY
High Pressure hydraulic hoses are used today with confidence, knowing that whether at the machine manufacturing stage, servicing or user replacement/modification, they are designed to perform to a high degree of safety and service life,
However, even the hose of the most respected of manufacturers can become subject to failure. Whether through unusual or unplanned exposure to operating conditions, abrasion of the cover, undue tensile forces on the end fittings, machine accident, or other causes, steps can be taken to minimise the risk of it happening and protecting personnel and the environment from collateral damage.
Current thinking suggests that legislation/guidelines will be developed and introduced to ensure that hoses exposed to the possibility of failure/burst within a specific distance of members of the public, will have to be subject to secondary protection to prevent any 3rd party injury.
See also ISO 4413 quoted below
This is already being further discussed within the International organisations responsible for standards.
At present there are 'rule of thumb' guidelines that suggest machinery with exposed hoses, operating within a public space, should already be provided with safety shields or hose burst cover sleeves. This follows incidents where leaks and failures have directly affected nearby persons
It is of course equally important to be considering the machine operator when making safety provision, and the solutions being offered here are just as important in this scenario as they are concerning public liability.
- Consider then:
- wrapping individual hoses in a spiral guard | wrapping groups of hoses together similarly, both for protection against external damage where that might be the cause of failure
- using a hose safety sleeve, again individually or on bundles, this will relieve the immediate danger in the event of hose failures
- using strapping to secure individual or groups of hoses where significant unwanted movement might cause excessive wear
- hose stop safety end protectors, to prevent a hose flailing around in the event of and end failure.
The solutions offered are suitable for both initial manufacture and subsequent retrofit