IEEE-CPMT Society TC-1 Committee
on Electrical Contacts
Tuesday September18, 2007
Chair: G. Witter
Vice-Chair: Bob Malucci
Secretary: C. Leung
Holm Conference Attendees
Opening: G. Witter
· TC-1 of IEEE-CPMT meeting was called to order by Chairman G. Witter.
1. Approval of minutes of previous meeting - G. Witter
· 2006 meeting minute has been posted at
web page. It was approved.
2. Preliminary Report on 53rd IEEE-Holm Conference – John Shea
· Total registration is 125 attendee from 8 coountries.
48 technical papers with contributions from
Ragnar Holm Scientific Achievement Awardee, Dr. Ji Gao Zhang,
The Dr. Morton Antler Invited Lecture was given by Professor Hoachim Heberlein, Mechanical
· The dinner social on Monday was well attended by 96 including spouses at the Grand Concourse.
The 2008 IEEE Holm Conference will be in
Conference feedbacks are very positive
· The technical program is rated strong, with very good printing qualities of the proceedings.
3. Report on Intensive Course on Electrical Contact - Paul Slade
· There was no course offered in 2007 but will be offered in 2008 as a 3 day course right before the Holm Conference a the Florida Hotel & Conference Center, Orland FL, with a Sunday break.
· The 2006 course held after the Holm conference was considered not a good time and better to be before the conference.
· Course offered every 2 years is considered a good plan.
4. Report on CPMT Transaction –John McBride
· 2006 Holm Papers: 6-7 were recommended by the Technical Committee reviews for CPMT publication. Of the 7, 5 are resubmitted to CPMT review.
· CPMT journal has 18months of backlog of publications.
· IEEE quota is about 6-7 Holm papers per year. However, individuals can also submit directly to CPMT
· CPMT has a page limit per issue, and that is the reason for not able to publish quickly.
· TC1 will work with CPMT to accept more papers and faster publication
5. World Calendar
· Web link of world calendar events – forward notice to Chi Leung.
2007 ICREPEC (International Conference on
Reliability of Electrical Products and Electrical Contacts) was held in March
6. Publicity – Chi Leung
· Web and CPMT newsletter will be the primary medium for TC1 and Holm information. Many members have used the web for info and registration to conference.
7. International Conference on Electrical Contact ICEC2008 – Professor Ben Jemaa, Conference Chair:
24th ICEC will be in
Many IEEE conferences had been held at the
· 200 rooms have been reserved in near by hotels
· Send abstracts by mid November
· IEEE France section is also co-sponsor.
8. IEICE Tranaction – Professor Makoto Hasegawa, Chitose Institute of Science & Technology
IEICE Transaction (
50 papers from the 2006 ICEC at
· Contact firstname.lastname@example.org for paper submission details
8. TC1 sub-committee Reports:
Material restrictions and substitution – Dr. Volker Behrens
ROHS in consumer products – expect the Cd exemption will run out in 2-3 years. Discussions in European Union to add other exemptions but not likely to change. Next 2 years, Cd use is ok. Market in AgCdO is decreasing substantially in
Henry Czajkowski : NEMA is taking a proactive approach while some states try to adopt ROHS regulations. NEMA new strategic initiative is to influence legislative to be uniform and not as restrictive. Nickel ban is not an issue. Pb free tin plating has issues with tin whiskers. CA has adoption same as EU,
High Frequency Connectors – Roland Timsit
Not much new break through since 2 years ago, with incremental changes to 2 GHz; copper wire still in use because skin depth losses are small and rebuilt signals before use is not dead; optical fibre is now in the back seat again.
and micro-contact technology – Bob Malucci
Increased interest with MEM and NANO in this conference. Carbon Nano Tube is more of same. We need to actively solicit papers while MEMs tend to go to the IEEE MEM’s conference.
Motor Controls Technology - Henry Czajkowski
Trends are miniaturization and bus bar systems; high performance demands on contactors; distributed controls, more harsh environments, vibrations and clean. Standards: UL and CSA trends to harmonize with IEC standards. 6947-4-1 is published but not very useable yet. But further works to squeeze out differences. NEC codes are new on spacing, utilization etc. Traditional NEMA products are all AgCdO. Designs for new NEMA and IEC may go Cd free. ROHS requirements are for consumer products.
High current applications: Arc fault detection –
There is an AFCI session in this conference. Work on series arcs continue. New AFCI products Jan 2008 are mandatory. NEC new home construction and retrofit require detection of low level parallel and undesirable series arcs. Soon to be whole house circuits with 15A and 20A not for appliances. A lot of proprietary work. Cost differential is $32 AFCI breakers vs traditional $5 circuit breakers. Each state has to adopt the NEC code. Electronic detection and arc physics knowledge required for design. Other countries
Telecommunication – Werner Johler
Challenge is material price increases of all components including Cu, Fe, precious metals, plastic and energy
No breakthrough in MEMs due to high costs and characteristics (isolation, load switching, reliability). This maintains the opportunities for electromechanical devices.
Recent requirements for telecoms are 6 kv isolation, coil/contact, and 3.5kv between open contacts
Ultra-minimization UL508 requirements are good isolation materials. No material available to meet all requirements, head ache to relays manufacturers.
Respectfully submitted, Chi Leung, 8/2008