Machinery Safety 101
14 April, 2021

What exactly is PELV?

by Doug Nix
in Electrical Safety, Inherently Safe Design
Photo of the interior of an electrical control cabinet showing the components and wireways on the backplane.

What exactly is PELV? Elec­tric­al design­ers run into all kinds of spe­cial­ized ter­min­o­logy as part of their work. IEC is notori­ous for cre­at­ing spe­cial­ized terms that are not famil­i­ar to… 

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27 September, 2010

Emergency Stop Categories

by Doug Nix
in Canada, CE Mark, Complementary Protective Measures, Control Functions, Emergency Stop, EU European Union, USA /
46 Comments
Emergency Stop on machine console
This entry is part 4 of 16 in the series Emer­gency Stop

I’ve noticed a lot of people look­ing for inform­a­tion on Emer­gency Stop cat­egor­ies recently; this art­icle is aimed at those read­ers who want to under­stand this top­ic in more depth. First,… 

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