Tag Archives: test

Inside Apple’s EMC Lab

Posted by on July 19, 2010 2 comments

Macworld was invited inside Apple’s EMC test lab for a tour — the first time jour­nal­ists have been per­mit­ted into this area. This arti­cle looks at what Apple does to make sure their prod­ucts meet EMC design require­ments. Testing indus­trial equip­ment is often sim­pler that this, and you don’t need to buy your own labs to do it. Are your machine designs com­pli­ant? Would you know if they weren’t?

Interlocked gate testing

Posted by on July 17, 2010 5 comments

Did you know that inter­locked gates require stop­ping per­for­mance testing?

Machinery needs to be able to stop in the time it takes a per­son to open the guard and reach the haz­ard. If the dis­tance from the guard open­ing to the haz­ard is short enough that a per­son can reach the dan­ger point before the haz­ard can be con­trolled, the guard is use­less. The result­ing sit­u­a­tion may be worse than not hav­ing a guard because it’s pres­ence leads to a false sense of secu­rity in users.

Test the stop­ping time of guarded haz­ards and make sure that guards are far enough away from the dan­ger zone to be effec­tive. For more on stop­ping per­for­mance require­ments, see CSA Z434, EN 999 (soon to be replaced by EN 13855:2010), and in the USA, 29 CFR 1910.217(h)(9)(v).

Download ISO Standards
Download IEC stan­dards, International Electrotechnical Commission stan­dards.
Download BSI Standards (British Standards Institution)
Download ANSI standards

Need help with stop­ping per­for­mance test­ing? Contact us!  (salesatcom­pli­an­cein­is­ghtdotca)  

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