Cameron,
The grounding continuity test required by CSA 0.4 is normally intended only for the initial prototype evaluation, to ensure that the basic design is within acceptable parameters. It is not usually intended as a production line test. There may be some exceptions, where non-standard earthing methods are employed, in which case some safety agencies may require a severe production line test. But this is not the norm.
Regards, Egon At 11:52 AM 25/08/1999 , you wrote:
Hello all, I want to clarify some of my thoughts regarding the ground bond specification for production line. EN 50116 for ITE specifies the earthing terminal or earthing contact may not exceed 0.1 ohms when 1.5 times the current capacity of hazardous circuits is applied, but not more than 25 A (ac or dc) for 60 seconds. The CSA standard C22.2 No. 0.4-M1982 "Bonding and grounding of Electrical Equipment" specifies for cord-connected equipment twice the rating of the attachment plug capacity, but not less than 30 A, 60 Hz current for 2 minutes. I am wondering which of these standards is applicable for routine test in production field. I think that EN 50116 is, but I am a little bit embarrassed by the CSA requirements of 30A and want to know your ideas on basis of a longer experience than mine. I appreciate any response to this e-mail. Thank you. Best regards, Carmen Filimon Safety Test Eng., Leitch Technology Int'l, Toronto
__________________________________________ Egon H. Varju, PEng E.H. Varju & Associates Ltd. North Vancouver, Canada Tel: 1 604 985 5710 HAVE MODEM Fax: 1 604 273 5815 WILL TRAVEL E-mail: [email protected] [email protected] __________________________________________ --------- This message is coming from the emc-pstc discussion list. To cancel your subscription, send mail to [email protected] with the single line: "unsubscribe emc-pstc" (without the quotes). For help, send mail to [email protected], [email protected], [email protected], or [email protected] (the list administrators).
