Hi,

I can help much, but, for this paragraph, the rationale at the back of the
standard states that "Annex AAA of the Collateral Standard IEC 60601-1-2
states that the limits and methodology are under consideration by technical
committee 77.  This Particular Standard, however, refers for the time being
to IEC 60521 in which 400 A/m is required."

For the Second Edition of IEC 60601-1-2, Clause 36.202.8.1, the limit is 3
A/m.

Ned Devine
Program Manager
Entela, Inc.
3033 Madison Ave. SE
Grand Rapids, MI  49548
1 616 248 9671 Phone
1 616 574 9752 Fax
[email protected] e-mail

Entela, Inc. A Certified Woman Owned Business
www.entela.com 





-----Original Message-----
From: [email protected] [mailto:[email protected]]
Sent: Sunday, April 28, 2002 3:40 PM
To: [email protected]
Subject: IEC 60601-2-24 / Magnetic Field



Hi all,

A colleague was checking the IEC 60601-2-24:98 and found the Magnetic Field
Req't (paragraph 36.202.6) far too high: 400 Ampere-per-meter! I'd like to
check this requirement for its correctness or history with backgrounds for
such a demand. I know that 3A/m, 10A/m and 30A/m are often used, but 400A/m
.....

Can anybody help?

Best regards
Amund Westin, Oslo/Norway

PS: IEC 60601-2-24:98 - "Medical electrical equipment - Part 2-24:
Particular requirements for the safety of infusion pumps and controllers"



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