Creepage and Clearance

2000-03-08 Thread carlos . perkins
Dear Group, I have to compare the CC distances between EN 60950 and EN 60335. Not being one who likes re-inventing the wheel, I would like to ask if anyone has already done this work, and is willing to share the results with me? Many thanks in advance,

Re: Technical Construction File

2000-03-03 Thread carlos . perkins
A small addition to Nick's excellent summary of the Routes to Compliance: The TCF route can also be used when Harmonised Standards exist, but the manufacturer chooses not to (or can't) use all (or any) of them. Cheers,

RE: EN 61000-4-2

2000-01-18 Thread carlos . perkins
Bill, We have found that stepping up through the test voltages can give misleading results. Our products are plastic cased, and they appear to 'charge' as the test voltages are applied. The result is a pass if 10kv (for example) is applied by stepping in 2kv steps, but a fail if 10kv is

Re: Surge Test Performance Criterion

2000-01-13 Thread carlos . perkins
Jim, I agree with you, on the basis that in this case, a complete shut-down is a designed-in function of the product, and the standard says No degradation of performance or loss of function is allowed below a performance level specified by the manfucturer. You, as the manufacturer, are

Piezo lighters

1999-12-16 Thread carlos . perkins
Dear All, Does anyone out there know what the peak voltage of a handheld piezo gas lighter is? Or how to measure it? Any tips would be very welcome. Many thanks, Carlos. - This message is coming from the emc-pstc discussion list. To cancel your subscription, send mail to

Mexican Question

1999-11-18 Thread carlos . perkins
? They will only be used at our factory, they will not be sold or supplied to customers. Please let me have your views. Carlos Perkins MEI - UK - This message is coming from the emc-pstc discussion list. To cancel your subscription, send mail to majord...@ieee.org with the single line: unsubscribe emc

80/80 rule

1999-09-16 Thread carlos . perkins
C'mon Group, There must be more than one of you doing series production testing? I am struggling to find hard data relating to the percentage of products tested per batch, and the frequency of testing in accordance with Section 7 of EN 55022. Is there anyone out there with a Gameplan? Cheers,

EMC and Safety Requirements for Mexico

1999-09-13 Thread carlos . perkins
Hello Group, Can anyone tell me if CE marking of electrical and electronic products is acceptable to the Mexican authorities? What tests in addition to the ENs would be necessary? Many thanks. Carlos Perkins. - This message is coming from the emc-pstc discussion list. To cancel

80/80 - Doing the Work!

1999-09-09 Thread carlos . perkins
for production testing, but I would like to poll the list members to get a concensus view across industry. I feel it is important to establish a kind of 'industry standard' for production testing, to bolster the 'Due Dilligence' defence. Please let me have your thoughts. Many thanks, Carlos Perkins

GeldKarte Approval

1999-08-24 Thread carlos . perkins
if we need approval or not. Help! Many thanks, Carlos Perkins Compliance Manager - MEI - This message is coming from the emc-pstc discussion list. To cancel your subscription, send mail to majord...@ieee.org with the single line: unsubscribe emc-pstc (without the quotes). For help, send

Equipment designed and manufactured for use in-house

1999-08-13 Thread carlos . perkins
on this? Cheers, Carlos Perkins - This message is coming from the emc-pstc discussion list. To cancel your subscription, send mail to majord...@ieee.org with the single line: unsubscribe emc-pstc (without the quotes). For help, send mail to ed.pr...@cubic.com, jim_bac...@monarch.com, ri