RE: Isolated grounds in central office

2002-09-11 Thread Gill, Mark
JPR3, I am not a aware of a requirement for isolation in central offices from 295, and 1089 section 9 discusses connections of equipment installed in an IBN that now has multiple incidental or intentional connections to the CBN. 9.10 "This section contains criteria for tests to be performed on

RE: Taiwan and China approvals?

2002-09-04 Thread Gill, Mark
Hello Chun - Could you identify the legal documents from the governments for Korea and China that have these statements? I would be interested in understanding a bit further. Thanks. Regards, Mark F. Gill Sr. Engineer C-MAC Design Corporation, A Solectron Company 4222 Emperor Blvd, Suit

Ampacity

2002-08-30 Thread Gill, Mark
Safety Folks - I have a question for the group on the effects of temperature rating and deterioration. If a pcb is rated X degrees C, and the sizing of the power traces on an inner layer is such that the pcb temperature is now (X-1) degrees C, What effect does this have on the longevity of the