Hello TechNet
A question for you guys concerning ESD protection and it's interaction
(conflict) with safety.

We use the standard wrist strap and cord with the built in resistor, and
practice that any time an ESD sensitive assembly is being worked on we
have to wear the wrist strap.  This is fine in the production
environment, but in test we can be dealing with some scary voltages, and
being nicely grounded is not necessarily a good thing.  Say for example,
when working with something that has up to 20,000 v DC running through
it.

What are other folks doing in cases like this?

My first instinct is that our rule should be modified to say that the
wrist strap is not to be used if voltages in excess of 250v are present.

regards, 
  
Graham Collins 
Halifax Production Engineering 
L-3 communications Electronic Systems 
(902) 873-2000 ext. 6215 


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