Re: strange symbols (to me anyway)

2003-01-04 Thread John Woodgate
I read in !emc-pstc that Lou Aiken wrote (in <002701c2b402$6a322280$218066d1@default>) about 'strange symbols (to me anyway)' on Sat, 4 Jan 2003: >John, I didn't word that part very well. > >I don't know when the "indoor use only" SYMBOL came into use; that could be >recently. > >I should have sa

Re: strange symbols (to me anyway)

2003-01-04 Thread John Woodgate
I read in !emc-pstc that Ronald R. Wellman wrote (in <5.1.0.14.2.20030104081733.009f2...@pop.registeredsite.com>) about 'strange symbols (to me anyway)' on Sat, 4 Jan 2003: >Many safety standards are now making reference to >IP numbers, so this "for indoor use" marking is unnecessary by present

Re: strange symbols (to me anyway)

2003-01-04 Thread Ronald R. Wellman
Hello Lou and Rich, Thanks for investigating this. It appears that we are living with a very old German standard that can be better replaced by using IEC 60529 for Ingress Protection (IP). Many safety standards are now making reference to IP numbers, so this "for indoor use" marking is unneces

Re: strange symbols (to me anyway)

2003-01-04 Thread Lou Aiken
John, I didn't word that part very well. I don't know when the "indoor use only" SYMBOL came into use; that could be recently. I should have said the only justification I could find for using it, to satisfy a requirement in a standard, was eliminated in CEE transformer standards about 40 years a

Re: strange symbols (to me anyway)

2003-01-04 Thread John Woodgate
I read in !emc-pstc that Lou Aiken wrote (in <002c01c2b3b9$77154700$8e8066d1@default>) about 'strange symbols (to me anyway)' on Sat, 4 Jan 2003: >My guess is that the symbol came into use (due to the >translation requirement) and is still alive today even though the >requirement for it disappea

Re: strange symbols (to me anyway)

2003-01-04 Thread Lou Aiken
For what it is worth I did a little research tonight. I have a copy of VDE 0550 part 1, dated 3.59. : It makes no mention of the indoor use only symbol. But is does show classifications for different types of enclosures using the water drop markings. The "Protected Type" meaning with an encl

Re: strange symbols (to me anyway)

2003-01-04 Thread Wan Juang Foo
John Barnes wrote on 01/04/03 07:55 AM > If you go tohttp://www.cellotape.com/contents.pdfpage 9, is > symbol 139 the one that is on your wireless unit? Dear all, Now we are getting somewhere. Thanks John for pointing a symbol that does finally somewhat fit the bill (description). AFAI