Re: Machinery safety and emergency switch

Peter, Following on from Nick's response, he is correct in stating that the device should be easily actuated. In some jurisdictions, like Ontario, Canada where I am located, the regulations go on to say that the emergency stop devices should be located "within easy reach" of the operator

Re: Product versus generic EMC standards

At 21:55 +0100 28/8/08, John Woodgate wrote: >In message , dated Thu, 28 Aug >2008, Nick Williams writes: > >>Except for the highly unusual circumstances which apply under the >>Construction Products Directive, > >Would you please enlarge on the 'highly unusual circumstances'? Some >standards

Re: Product versus generic EMC standards

In message , dated Thu, 28 Aug 2008, Nick Williams writes: >Except for the highly unusual circumstances which apply under the >Construction Products Directive, Would you please enlarge on the 'highly unusual circumstances'? Some standards under the CPD include EMC clauses. > it is wrong to

Fwd: Re: Machinery safety and emergency switch

>Date: Thu, 28 Aug 2008 21:15:40 +0100 >To: Peter >From: Nick Williams >Subject: Re: Machinery safety and emergency switch >Cc: emc-p...@ieee.org > > > >It's perfectly acceptable to daisy-chain emergency stop devices so >long as this does not reduce the reliability of the system (which is >won

Re: Machinery safety and emergency switch

You need to refer to EN ISO 13850 (which recently replaced EN 418). Clause 4.4.1 states "The emergency stop device shall be designed to be easily actuated by the operator and others who could need to actuate it." In this context "the emergency stop device" should be taken to mean the complete

IEEE 2008 Symposium on Product Compliance Engineering

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Re: Product versus generic EMC standards

At 09:09 -0700 28/8/08, Ted Eckert wrote: > >An example would be a commercial air conditioner. Would such a >product fall under a product specific standard under the Low Voltage >Directive or general standards under the Machinery and Pressure >Directives? It may depend on the design of the

Machinery safety and emergency switch

Hi experts, I have a question about requirements for emergency switches used in machinery placed on market in EU. The machine complies to MD by compliance with amongst others EN 60204-1:2006 and has a full compliant emergency switch installed for USERS easy activation during normal use. Now my

Re: Product versus generic EMC standards

In message <321194.82221...@web63601.mail.re1.yahoo.com>, dated Thu, 28 Aug 2008, Ted Eckert writes: >However, in my opinion, CISPR 22 has test methods and limits more >appropriate for the design and operating environment.  Although there >may not be a legal requirement to test to this stand

Re: Product versus generic EMC standards

The reason I feel that CISPR 22 and CISPR 24 may be applicable to a computer room air conditioner is based on the design of some of these products. I should clarify my point that these standards may not be legally required, but testing to them may represent a reasonable practice if the design and

Re: Product versus generic EMC standards

In message <332370.49190...@web63605.mail.re1.yahoo.com>, dated Thu, 28 Aug 2008, Ted Eckert writes: >A chiller intended to be installed on a roof or an equipment yard would >not > fall under IEC 60335-2-40.  Such a device would need to meet the more >generic requirements of the Machinery an

Re: Product versus generic EMC standards

Since the selection of specific vs. generic EMC standards has been addressed, let me give a view point based on safety standards. For safety, it is quite important to look at the scopes of individual standards. There may be no question for a product such as a laptop computer. However, there are

RE: Product versus generic EMC standards

Ian, Please take a look at Cenelec Guide 24. Regards, John Radomski Senior Compliance Engineer Philips SSLS From: emc-p...@ieee.org [mailto:emc-p...@ieee.org] On Behalf Of Gordon,Ian Sent: Thursday, August 28, 2008 9:01 AM To: 'IEEE EMC & SAFETY PSTC' Subject: Product versus generic EMC stan

Re: Product versus generic EMC standards

In message <5d39f9c94199f64fa82e5809c702aa7c0146a...@z-160-100-30-229.est.ibm.com>, dated Thu, 28 Aug 2008, "Gordon,Ian" writes: >There is a requirement that if a product standard exists than this >should be applied to relevant products rather than using a generic >standard. Can anyone sen

Product versus generic EMC standards

There is a requirement that if a product standard exists than this should be applied to relevant products rather than using a generic standard. Can anyone send me a link to where this principle is definitively stated e.g. a governmental website etc. Ian Gordon The contents of this email and