>> I know that washing machine wringers pose a threat to some appendages of the 
>> human body...


Printing presses and other industrial hazards may be dealt with by operator 
safeguards and personal safety equipment (eg safety shoes)but the home will 
always have to be treated differently. It really does have to be evaluated as if
children and infants, people without either the ability to read, or heed, safety
warnings, must be dealt with. Why? Because this particular example is one for 
which the presence of infants and children must be assumed.  "Some appendages"? 
Well, yes; when _I_ was four I caught my hand in a washing machine wringer and 
had the skin neatly removed from it.

______________________________ Reply Separator _________________________________
Subject: ONE Safety Standard
Author:  "Rose, Manning I" <ros...@srdpost.daytonoh.ncr.com> at internet
List-Post: emc-pstc@listserv.ieee.org
Date:    9/27/96 10:44


I agree with Rich Nute.
The safety principles can be
defined in generic engineering
terms, and only the test or performance 
values need to be specified.
          
Gravity has not changed, so tipability
and the center of gravity is still the same. 
How much force do you use to tip it over. 
While there is general consensus, it
usually winds up the same.
          
So it is with dielectric strength, double 
insulation, isolation and so forth.
The flammability of plastics will not 
change from product to product.
          
What we are looking at is something
like the strength of materials.  We all 
know the material parameters, but
all we have to do is:  agree what level of 
strength we need for safety.  Once that
has been determined, you have one standard.
          
I believe that we can shed the three tier concept. 
Two maybe.  I was the International Chair for
IEC 335 TC for IEC 380.  We tried the one tier 
for general principles, then part 2 for Office 
Products.  Then we put them together, and we 
shed another tier.
          
I know that washing machine wringers pose 
a threat to some appendages of the human
body, but is this different from printing presses 
with similar rollers.  I think not.  I believe our 
egos get in the way of trying for universal safety 
and think of safety of IT, Phones, Test Eqmt,
and the like.
          
I vote for one standard. One technology. 
One world.  Amen.
          
Manning Rose, NCR Corporation, Dayton, Ohio 
m.r...@ieee.org  or manning.r...@daytonoh.ncr.com
          
          
          
          
          
          

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