Question: I'd like to know some background on copper thieving what it's exactly used for, how long has it been in use, etc. I'd also like to know if this has any affect on the calculation of the creepage distance between the high voltage (primary) side and the low voltage (secondary) side of a UL approved board. Say we had a 10mm distance between primary and secondary, now 3 rows of 1mm dots are spaced evenly between the two sections, does this have any impact on the UL specifications on creepage distances? Thanks -- Paul Truit Mfg Eng RBB Systems, Inc. 8767 TR 513 Shreve, Oh 44676 Phone: 330.567.2906 ext. 246 Fax: 330.567.3925 mailto:[log in to unmask] ################################################################ TechNet E-Mail Forum provided as a free service by IPC using LISTSERV 1.8c ################################################################ To subscribe/unsubscribe, send a message to [log in to unmask] with following text in the body: To subscribe: SUBSCRIBE TechNet <your full name> To unsubscribe: SIGNOFF TechNet ################################################################ Please visit IPC's web site (http://www.ipc.org) "On-Line Services" section for additional information. For technical support contact Hugo Scaramuzza at [log in to unmask] or 847-509-9700 ext.312 ################################################################