In message <[email protected]>, dated Tue, 
30 Sep 2008, Brian O'Connell <[email protected]> writes:


>Develop a good working relationship with senior agency engineers.

VERY good advice indeed.
>
>Talk to the safety/compliance engineers of your component suppliers - 
>if you buy component power supplies, specifically strive to develop a 
>good relationship with your power supply safety engineers.

Also very good.
>
>If your employer has other safety engineers, ask many questions about 
>both the 'how' and 'why' of Type Tests.

You will learn'how' in great detail. 'Why' is far less certain: many 
tests have grown up as 'lore' over the years. The IEC 62368 project is 
an attempt to replace lore with logic, but it's proving a very rough 
road indeed.
>
>Expect positions, that perform only safety engineering, to eventually 
>be outsourced.

.. followed by expensive problems and a reconsideration.

You can only 'design in' safety unless you want to lose lots of money by 
imposing it on 'finished' designs. This means that your design engineers 
need to know the safety standard(s) in depth. As the resident safety 
expert, you **DAY-TO-DAY** train the designers, do the tests and make 
sure that the designers did a good job. Outsourcing that function is a 
recipe for disaster.
-- 
OOO - Own Opinions Only. Try www.jmwa.demon.co.uk and www.isce.org.uk
Either we are causing global warming, in which case we may be able to stop it,
or natural variation is causing it, and we probably can't stop it. You choose!
John Woodgate, J M Woodgate and Associates, Rayleigh, Essex UK

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