Peter, Thanks for the response. Our original design called for separate circuits, but for a variety of reasons, we decided to go with the single 100 A input. Since I had never seen it before, I thought I'd ask if anyone in this forum ever had.
Susanne Delisle Product Safety Engineer Unishpere Networks 10 Technology Park Drive Westford, MA 01886 (978) 589-0349 (978) 589-0800 fax [email protected] -----Original Message----- From: Peter Merguerian [mailto:[email protected]] Sent: Tuesday, June 12, 2001 11:45 AM To: 'David Heald'; '[email protected]' Cc: Delisle, Susanne Subject: RE: Field wiring terminal size Suzanne, After discussing your problem with our telecoms expert, this is what he has to say: "The best solution for such a high power consumption unit is to split the power into 2 or 3 terminal blocks. This means you protect each terminal block with a separate breaker that complies with currents that the standard requires. You have to realize that it is not practical to require the CO/(or any other client) to upgrade the wiring for you and provide you with one wire with all the needed power. Therefore you use the existing wires within the CO/client" PETER S. MERGUERIAN Technical Director I.T.L. (Product Testing) Ltd. 26 Hacharoshet St., POB 211 Or Yehuda 60251, Israel Tel: + 972-(0)3-5339022 Fax: + 972-(0)3-5339019 Mobile: + 972-(0)54-838175 -----Original Message----- From: Peter Merguerian Sent: Tuesday, June 12, 2001 4:32 PM To: 'David Heald'; [email protected] Cc: [email protected] Subject: RE: Field wiring terminal size Suzanne, Your best bet is to use components that have been previously evaluated for field wiring, such as a UL Recognized terminal block for the + and - and a UL Listed pressure terminal connector for the protective earthing terminal; of course both have to be suitable for the 100 A and the wire gauge anticipated in the field. This way, you satisfy the North American component requirements and because there is no limit in the standard for a 100 A rating, most European and other worldwide test houses are likely to accept the US evaluated component. Regards, PETER S. MERGUERIAN Technical Director I.T.L. (Product Testing) Ltd. 26 Hacharoshet St., POB 211 Or Yehuda 60251, Israel Tel: + 972-(0)3-5339022 Fax: + 972-(0)3-5339019 Mobile: + 972-(0)54-838175 -----Original Message----- From: David Heald [mailto:[email protected]] Sent: Friday, June 08, 2001 6:51 PM To: [email protected] Cc: [email protected] Subject: [Fwd: Field wiring terminal size] Forwarded for Susanne Delisle. Please cc Susanne ([email protected]) on any replies -------- Original Message -------- Subject: Field wiring terminal size List-Post: [email protected] Date: Fri, 8 Jun 2001 10:09:11 -0400 From: "Delisle, Susanne" <[email protected]> To: [email protected] Group, I'm in the process of specifying field wiring terminals for a -48Vdc product that's rated 100A. Table 3E in 60950 only specifies sizes up to 63 A. Does anyone know how I go about sizing a terminal for the higher current? Susanne Delisle Product Safety Engineer Unishpere Networks 10 Technology Park Drive Westford, MA 01886 (978) 589-0349 (978) 589-0800 fax [email protected] ------------------------------------------- This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. Visit our web site at: http://www.ewh.ieee.org/soc/emcs/pstc/ To cancel your subscription, send mail to: [email protected] with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Michael Garretson: [email protected] Dave Heald [email protected] For policy questions, send mail to: Richard Nute: [email protected] Jim Bacher: [email protected] All emc-pstc postings are archived and searchable on the web at: http://www.rcic.com/ click on "Virtual Conference Hall," ------------------------------------------- This message is from the IEEE EMC Society Product Safety Technical Committee emc-pstc discussion list. Visit our web site at: http://www.ewh.ieee.org/soc/emcs/pstc/ To cancel your subscription, send mail to: [email protected] with the single line: unsubscribe emc-pstc For help, send mail to the list administrators: Michael Garretson: [email protected] Dave Heald [email protected] For policy questions, send mail to: Richard Nute: [email protected] Jim Bacher: [email protected] All emc-pstc postings are archived and searchable on the web at: http://www.rcic.com/ click on "Virtual Conference Hall,"
