B
bassa
Hello,
I am struggling with the test procedures to determine safety in oxygen rich environments.
Our product has socket outlets, and gas terminals (including oxygen)
Both are placed in separate compartments.
clause 11.2.2.1.b.2 states the following:
- [FONT="]The oxygen concentration is measured for such a period that the highest
[/FONT]
[FONT="]concentration of oxygen occurs. The least favourable control settings are selected.[/FONT][FONT="]The leaking conditions of oxygen are selected such that they provide the minimum[/FONT][FONT="] leak that could be detected by the [/FONT][FONT="]OPERATOR [/FONT][FONT="](e.g. because of a failure of the function[/FONT][FONT="] of the device). If the concentration of oxygen exceeds 25 % in the presence of parts or[/FONT] [FONT="]components that could be a source of ignition including at the moment energy is applied, it constitutes a failure.[/FONT]
The testing laboratory that is testing our product for 60601 3rd edition asks us what the expected oxygen leak rate could be.
When a leak is only to be detected only by a loss of function, the leak rate could be enormous; it's a supply hose at 8 bar pressure! I can imagine the hose system has a leak that is wildly roaring; while the connected device (needing only 200miliBar) is still working.
Anyone has experience on how to approach this?
I am struggling with the test procedures to determine safety in oxygen rich environments.
Our product has socket outlets, and gas terminals (including oxygen)
Both are placed in separate compartments.
clause 11.2.2.1.b.2 states the following:
- [FONT="]The oxygen concentration is measured for such a period that the highest
[/FONT]
[FONT="]concentration of oxygen occurs. The least favourable control settings are selected.[/FONT][FONT="]The leaking conditions of oxygen are selected such that they provide the minimum[/FONT][FONT="] leak that could be detected by the [/FONT][FONT="]OPERATOR [/FONT][FONT="](e.g. because of a failure of the function[/FONT][FONT="] of the device). If the concentration of oxygen exceeds 25 % in the presence of parts or[/FONT] [FONT="]components that could be a source of ignition including at the moment energy is applied, it constitutes a failure.[/FONT]
The testing laboratory that is testing our product for 60601 3rd edition asks us what the expected oxygen leak rate could be.
When a leak is only to be detected only by a loss of function, the leak rate could be enormous; it's a supply hose at 8 bar pressure! I can imagine the hose system has a leak that is wildly roaring; while the connected device (needing only 200miliBar) is still working.
Anyone has experience on how to approach this?