Francois: I was looking at the manual on an electric wheelchair about two years ago. I was pleased to see that the manual contained a Declaration of Conformity (but I sure don't remember the EN's it claimed). I also found it interesting that the manual specifically stated that the wheelchair also was compliant with a 20 V/M field from (IIRC) 30 MHz to 1000 MHz. That's nice, since personal electronic emitters (cell phones, PCS, handheld CB sets) typically generate about 5 to 10 V/M at about 1 to 2 meters distance. That increases the chances that the wheelchair user can safely use a cell phone without spinning in circles (or worse).
Regards, Ed Ed Price [email protected] Electromagnetic Compatibility Lab Cubic Defense Systems San Diego, CA USA 858-505-2780 (Voice) 858-505-1583 (Fax) Military & Avionics EMC Services Is Our Specialty Shake-Bake-Shock - Metrology - Reliability Analysis >-----Original Message----- >From: Francois Venter [mailto:[email protected]] >Sent: Tuesday, May 29, 2001 11:28 PM >To: [email protected] >Subject: EMI from Electrical wheelchairs > > > >Hi All > >Can anybody please tell me where I can find information on EMI from and >interfering with Electric wheelchairs. I recently had a question from >somebody after a patient with multiple sclerosis seemed to be affected >by something when placed in an electric wheelchair. In a normal >wheelchair his movements etc seemed normal for a person with his >condition. In the electric wheelchair his condition seemed to be much >worse. > >Anybody heard about similar cases? > >Francois Venter >Alcatel Altech Telecoms >PO Box 462, Boksburg, 1460, South Africa >Tel +27 (0)11 899-6064 >Fax +27 (0)11 899-6590 >[email protected] ------------------------------------------- This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. Visit our web site at: http://www.ewh.ieee.org/soc/emcs/pstc/ To cancel your subscription, send mail to: [email protected] with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Michael Garretson: [email protected] Dave Heald [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.rcic.com/ click on "Virtual Conference Hall,"
