Hello Duncan, I have applied IEC 61010-1 to products using fluids and gases under low and high pressures. I don't know what you have done to address overpressure but be aware that the maximum pressure you might need to apply to the system is 3 times the rated pressure to comply with the standard. Also, are you regulating the water pressure? If not, you may need to use an overpressure device that purges into a drain.
Finally, you might consider a recirculating chiller, if you do not want to deal with the ground water protection issues. I've used this with diffusion pumps in years past. Best regards, Ron Wellman From: [email protected] [mailto:[email protected]]On Behalf Of Duncan Hobbs Sent: Friday, December 17, 2004 1:51 AM To: [email protected] Subject: IEC61010 (and regional versions) - Equipment containing fluids Group, We have a product that requires a constant supply of water to be able to function. The equipment is Laboratory control and mesurement equipment and will eventually be tested to IEC61010-1 as well as the EN and UL versions of the same standard. Section 11 of IEC1010-1 addresses hazards associated with fluids, however it seems biased towards high pressure or fluids that are contained in a finite quantity within the product. The situation I have is a low pressure fluid that is continuosly supplied. Do any of you list members have any opinions on how the standard may apply to this situation? As far as I can see, in our instance the only real requirement is that the equipment is safe under a single fault - i.e leakage, but to ensure containment of the fluid we would need a drip tray, float switch and inlet stop valve to ensure that it doesn't just leak fluids over all the eletrical parts. On another slightly different topic, I do recall in the U.S. (and specifically California)there were regulations for groundwater protection that included equipment containing fluids. Is anyone on the list familiar with these regulations or can point me to a source of information. For your info, the fluid I am talking about is chilled water, that most likely contains a biocide and anti corrosion agent. As usual any advice or comments would be grately appreciated. Regards, Duncan. Duncan Hobbs, Senior Compliance Engineer Product Compliance Laboratory Xyratex Technology Ltd. Havant, Hampshire, U.K. PO9 1SA tel: 02392 496444 fax: 02392 496014 [email protected] This message is from the IEEE Product Safety Engineering Society emc-pstc discussion list. Website: http://www.ieee-pses.org/ To post a message to the list, send your e-mail to [email protected] Instructions: http://listserv.ieee.org/listserv/request/user-guide.html List rules: http://www.ieee-pses.org/listrules.html For help, send mail to the list administrators: Scott Douglas [email protected] For policy questions, send mail to: Richard Nute: [email protected] Jim Bacher: [email protected] All emc-pstc postings are archived and searchable on the web at: http://www.ieeecommunities.org/emc-pstc This message is from the IEEE Product Safety Engineering Society emc-pstc discussion list. Website: http://www.ieee-pses.org/ To post a message to the list, send your e-mail to [email protected] Instructions: http://listserv.ieee.org/listserv/request/user-guide.html List rules: http://www.ieee-pses.org/listrules.html For help, send mail to the list administrators: Scott Douglas [email protected] For policy questions, send mail to: Richard Nute: [email protected] Jim Bacher: [email protected] All emc-pstc postings are archived and searchable on the web at: http://www.ieeecommunities.org/emc-pstc
