The original article was published in the Product
Safety Newsletter, which is now web-based. See:
http://www.ewh.ieee.org/soc/emcs/pstc/
http://www.ewh.ieee.org/soc/emcs/pstc/tech-spk.htm
Now that the PSN is on the web, I find I can use more
detailed and colored illustrations.
All of my safety articles are originally published in
the Product Safety Newsletter, not in commercial
magazines. 'Conformity' magazine reproduced the article
with my permission.
I usually give permission to use my copyrighted material
in other venues AFTER it is published in the PSN. This
particular article is also published on at least one
other web site.
If the demand is not too great, I can provide .pdf copies
via e-mail. Send me private e-mail if you are interested.
My big concern is that, since I don't get any money for
my articles (they're donated to the PSN), I don't want
others to make money from my donation to the PSN.
Occasionally, I do grant permission to commercial
publication such as 'Conformity,' but I demand that
credit and reference go to the PSN.
My long-term objective is to develop product safety as
an engineering discipline, and downgrade product safety
as conformity and certification to a standard. I want
product safety engineers to think about exactly how the
various requirements provide protection, if any. Hence,
it is important to show the current pathway for electric
shock, and how insulation provides protection against
electric shock. If you compare my article to the
requirements in IEC 60950, you will find that the IEC
60950 requirements are excessive.
Best regards,
Rich
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