creepage/clearance distances for LAN connection
creepage/clearance distances for LAN connection
(OP)
I need to know what are the required creepage and clearance distances on the traces of a PCB from the LAN isolation transformer to the RJ45 jack (IEC60950 requirements).
Im limited in my knowledge of this type of circuit and our reviewers (not sure if they are even qualified or understand what they are doing) at UL are requiring 1.24mm.
Is that correct?
I have the standard but just don't understand what type of circuit/insulation category it falls under. The board was designed by an outside firm and they have fallen off the face of the earth as soon as problems started popping up.
Thanks in advance
Im limited in my knowledge of this type of circuit and our reviewers (not sure if they are even qualified or understand what they are doing) at UL are requiring 1.24mm.
Is that correct?
I have the standard but just don't understand what type of circuit/insulation category it falls under. The board was designed by an outside firm and they have fallen off the face of the earth as soon as problems started popping up.
Thanks in advance





RE: creepage/clearance distances for LAN connection
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RE: creepage/clearance distances for LAN connection
Dan - Owner

http://www.Hi-TecDesigns.com
RE: creepage/clearance distances for LAN connection
Not the physical distance between the isolation transformer and the jack.
I always thought that the creepage/clearance was for 2 seperate circuits (ie a high voltage side of a TV and its associated 120V power supply),etc.. They are saying that the creepage/clearance even applies to everything, even the circuit I showed above.
Frankly I think they are crazy but I need some electrical background/facts to prove them wrong.
RE: creepage/clearance distances for LAN connection
Dan - Owner

http://www.Hi-TecDesigns.com
RE: creepage/clearance distances for LAN connection
Dan - Owner

http://www.Hi-TecDesigns.com
RE: creepage/clearance distances for LAN connection
You will find it hard or impossible to find a spec that sez "you can't do something". As apposed to, "you must do this".
Since this isn't a correct application of creepage worries, you won't find anything regarding it. IMHO.
Keith Cress
Flamin Systems, Inc.- http://www.flaminsystems.com