Working Group 3.6.6 Page 1 of 6 Rev Date 09-26-2011

IEEE PES SPDC Working Group 3.6.6 (Low-Voltage Surge Protective Devices for the Load Side of the Service Equipment) Meeting Date: May 16, 2011 - Time: 1:00 to 5:00 pm Location: Bahia Resort, San Diego, CA Approved Attendance: Members: 13 of 17 Interested Parties: 22 Guests: 0

Member Status Name Affiliation Present Not Present Member Bush, William Independent X Member (corresponding) Cole, Bryan Corning X Member DeGregoria, Joseph Underwriters Laboratories Inc. X (by phone) Secretary Haa, Andi Quality Plus X Member Hill, Ray NEETRAC X Chair Hotchkiss, Ron Surge Suppression Incorporated X Member (corresponding) Jensen, Chuck Duke Energy X Member Moellmann, James EFI Electronics/Schneider X Member Odenberg, Richard Transtector/Smith X Member Phipps, Tom Thor Systems, Inc. X Member Rebeck, Alan Transtector/Smith X Member Surtees, Tony ISKRA Protection USA X Member Wingate, Mark Maxivolt X Member Brown, Ken Leviton X Member Dorr, Doug EPRI X Member Koepfinger, Joe Independent X Member Ramirez, Joe DITEK Corp. X

Interested Party Ardley, Tim Bourns X Interested Party Ashton, Robert ON Semiconductor X Interested Party Corona, Carlos Leviton X Interested Party Douglass, Robert Cooper Bussmann X Interested Party Ellis, Daniel Eaton X Interested Party Farquhar, Lou* Advanced Protection Technology X Interested Party Furuta, Shigeru Sankosha X Interested Party Hendricks, Mark Transtector X Interested Party Hopkins, Mike EM Test USA X Interested Party Khatri, Fayaz Erico X Interested Party Ko, Edwin CSA X Interested Party Levitt, Corey Thomas & Betts X Interested Party Martin, Al Tyco Electronics X Interested Party Maytum, Mick Retired X Interested Party Mcclellan, David Phoenix Contact X Interested Party McIntyre, Bryce GE X Interested Party Mossop, Carey* Schneider Electric X Interested Party Nisar Chaudhry TII Network Technologies X Interested Party O’Conner, Rob EPCOS X Interested Party Oertel, Wolfgang Bourns X Interested Party Syverson, Rick* Erico X Interested Party Travis, Bill Littelfuse X

*Interested Parties requesting membership.

Minutes:

1. Chair opened meeting at 1:10 pm Working Group 3.6.6 Page 2 of 6 Rev Date 09-26-2011

2. After introductions, The Chair conducted a membership role call. With 11 of 17 members present, it was determined that a quorum was present for the meeting. The attendance sheet was circulated.

3. The IEEE Patent Slides were reviewed and circulated. Opportunity was given for any patent issues to be raised. No patent issues were reported.

4. The Agenda was displayed and reviewed. The agenda was unanimously approved.

5. Approval of Nov 2010 Minutes – Moved and Seconded – Unanimously approved.

6. PAR Review: PAR Status for PC62.62 (Dec 31, 2011), PC62.62a (Dec 31, 2014) and PC62.72 (Dec 31, 2013)

a. Discussion of Scope change to simplify the scope of C62.72 to make it more in line with other standards scopes – i. Discussion held regarding using C62.62 scope as the basis for change with a goal of keeping it as close to .62 as possible. Additional discussion held regarding the usefulness of the Scope. ii. A taskforce was created to review the scope: Richard Odenberg, Carey Mossop, Mark Wingate (Chair), Andi Haa.

The following file was the basis for discussion:

C62-72 Proposed Scope Change.doc

7. Status of C62.62 – Published.

8. TOV Test Taskforce: Ken Brown, (Taskforce Chair), Martin Guy, Paul Saa, Lou Farquhar, Doug Dorr, Tony Surtees and Bill Travis.

Ron indicated that he would follow up with Ken – the work will be continued.

The TOV related comments from the original IEEE-SA ballot are (line numbers referenced to PC62-62-D3.pdf) shown below:

Commenter Type Page Clause Line Comment Suggested Resolution Ashton, Editorial 2017 This sentence does not Unlike the induced failure mode Robert make sense the way it test, this withstand test is limited is written. I suggest the to applying TOV overstresses following rewrite: such as those that might be encountered in the field in order to verify values declared by the manufacturer (rated). Ashton, Editorial 2116 "measure" should be Change "measure" to Robert "measured" "measured". Wilson, Technical 56 A.13.5 2131 In Table A.13.1, on the If so, consider using the James right four columns in calculated number. If not, if they the bottom two rows, are ranges consider putting a are these items number blank space before and after the minus number? minus sign. Also consider putting an explanation for these items by the table. Funke, Technical 2131 Not clear if the TOV is Correct identify if this test is James based on nominal based on nominal voltage or voltage or MCOV MCOV Working Group 3.6.6 Page 3 of 6 Rev Date 09-26-2011

(which should be 115% of nominal voltage).

9. C62.72 Revision Update: A review of the tasks related to the new revision of C62.72 was conducted with notes as shown below.

a. Guidance for protection against or mitigation of internally generated transients – (Volunteer – William Bush, James Moellmann) i. The material provided to WG 3.6.13 is included below.

Internally Generated Surges WG 3-6-13 Spring 2011 Ron Hotchkiss James Moellmann Rev Date 05-03-2011.doc

b. Ground Currents when N-G mode shorted (shares neutral current) Volunteers: Doug Dorr (chair), Alan Rebeck, Bryan Cole, Mark Wingate, William Bush i. Alan Reported: There have been a number of teleconferences and tests performed. The testing that was done and will be reviewed once the taskforce has reviewed it. By next meeting, a full report and update will be provided.

c. Rework of 16.1.2 – High “Energy” Surges (Richard Odenberg) – i. In Process – Richard is trying to get two more supplies and have the project completed by October 2011 meeting.

d. Rework 16.9 (Surge-protective devices within end-use equipment) to include specific recommendations (Volunteers – Carey Mossop, James Moellmann, Dour Dorr, Lou Farquhar, Paul Saa). i. Carey provided document: Ron displayed Carey reviewed – Bryan suggested additional control equipment should be considered as well. Richard suggested a block diagram that could be considered to help with the explanation. Reviewed the transfer switch diagrams. Tony advised that we need to define the UL Type 1, 2, and 3 SPDs in this document. It was suggested that the working group use the symbols from 3.2 in the document. Also, consider using pictures, diagrams, and illustrations.

C62 72 16.9 SPDs Integral to End-Use Equipment - Carey Mossop.doc

e. Rework 16.10 (Coordination methodologies) – (Volunteers – Doug Dorr, Jim Tiesi, Matt Wakeham). i. Volunteers not present – no report.

f. Rework/removal of joule/energy ratings (Volunteers – Mark Wingate (Taskforce Chair), William Bush). i. Chair posted information provided for review by Working Group. It was suggested that additional information be provided. It was also suggested that additional information regarding the rationale for removing joule ratings. ii. The taskforce work is complete. Lou is going to review the work done to date and carry it forward. iii. The Chair will email the 13.5 document contribution to the Working Group. Working Group 3.6.6 Page 4 of 6 Rev Date 09-26-2011

IEEE C62 72 Joule TF edit 092111.doc

g. Rework Clause 17 (Summary) to include specific recommendations. Placeholder for later.

h. Guidance on the disposal of SPDs – environmental impact / hazards including RoHS (Volunteers – Dirk Malencia (TF Chair), Andi Haa, Tony Surtees, Ken Brown) – New TF Chair needed i. Determined that we will address in a brief statement regarding disposal and WEEE requirements. Lou, Ken, and Andi will work on this.

i. How to determine the Short-Circuit Current at any point in the system (Volunteers – Chuck Jensen (Taskforce Chair), Tony Surtees, Bryan Cole) i. Work provided was reviewed during the meeting. ii. Chair to circulate information provided.

C62 72 Section 9 4 Revision - Spring 2011 Mtg.docx

j. Glossary review – Update terms, need more, remove some – (Volunteers – Andi Haa (Taskforce Chair), Bryce McIntyre, Richard Odenberg). Richard Odenberg provided information regarding 61643-11. i. Further work will be done when the document is pulled together.

k. Implementation of Type X SPD terminology and explanation of use – (Volunteers – Andi Haa). Andi to include information that we use for C62.62-2010 and adjust as needed.

i. This will be completed when document is pulled together.

l. Installation in hazardous locations – deferred to next meeting –Joe Degregoria (Chair), Ken Brown, and Matt Wakeham volunteered to work on this. i. It was noted that most of the information for this subject will come from the NEC. ii. Joe D. provided document for review. The concept of having a general statement in the document regarding a recommendation to check with local jurisdictions. iii. Joe D. to provide a general statement for review.

SPDs for use in and Original file: relating to hazardous locations rev1 - Joe Degregria.doc

SPDs for use in and Updated file (post meeting – for circulation only): relating to Class I.docx

m. TOV considerations – Sources, origins, guidance – (Volunteers - Ken Brown). Working Group 3.6.6 Page 5 of 6 Rev Date 09-26-2011

i. Lou Farquhar, James Moellmann, and Corey Leavitt volunteered to join this taskforce as well.

n. Rework 16 to be a list followed by an explanation of the list with recommendations – expand to include ratings derived/reported in C62.62 – why these are needed and provide recommendations (Volunteers - Lou Farquhar (TF Leader), Tom Phipps) i. Lou reviewed the input. ii. Alan suggested that the section should be identified as “Considerations in the Coordination of SPDs”. The clause title was adjusted to be “Surge protective device coordination consideration”. iii. Tony suggested the use of diagram to demonstrate the installation and indicated he will provide the drawing. iv. Mick Maytum suggested that we talk about current rather than energy – Mick mentioned the paper on waveforms and measured lightning current. They measured in Japan the peak current and the charge. Peak current was generally 3,000 amps. After analysis, the surge tended to decay in a little over 100 microseconds. Mick to provide paper referenced in discussion.

Home Network Port Lightning DamageBG.pdf

C62 72 - Section 16 LF - TP Rev C - Tom Phipps.doc

o. What needs protecting and why? (one needs to protect [fill in the blank] equipment and here is why and how) – UPS, motors, drives, electronics, etc. – Reference 3.6.4. Taskforce 1. (Rick Syverson (Chair), Tom Colcombe , Ron Hotchkiss, Don Grove) Fayaz Khatri and Bryan Cole volunteered to work with the group. i. Rick provided information – need to regroup on scope and focus. ii. Ron to circulate document provided by Rick on refrigeration systems iii. Richard suggested that a questionnaire be developed and included in the document. Richard will look for a questionnaire that can be used as a starting point. iv. Establish common equipment list and then develop the how to protect those systems document v. Working group to send ideas of particularly critical or common loads that we protect so that we can address them in the app guide. vi. Bryan suggested that we look at specific systems themselves – for example: emergency, COPS, general systems at higher level vii. Review of Alan’s ATS document – the working group agreed.

What needs Transients Created ATS Protection Note Protecting and Why - FDC Exampleby -Transfer Rick Syverson.doc Switches - Alan Rebeck.doc- Generic - Ron Hotchkiss.doc

p. Additional suggestions – (Review Annexes)

10. Paper Taskforce Reports: Working Group 3.6.6 Page 6 of 6 Rev Date 09-26-2011

a. William Bush – Grounding and Bonding: William to have information breakdown to working group by July for review and organization. i. William suggested that we delay completion of this work pending the IAS and NEC work being done regarding the topic and definition of terms. ii. Taskforce Members: William Bush (leader), Alan Rebeck, Joe Ramirez, Bryan Cole, Chuck Jensen, Mark Wingate, and Fayaz Khatri.

b. Ron Hotchkiss – MCOV of MOV Coordination – No additional update at this time. At this point, Ron Hotchkiss needs to run the test.

11. Old Business: None reported.

12. New Business: C62.48 discussion: Consider reviewing to have as a normative reference. This is an assignment for the working group – to take a look and see what portions we may want to address. Also consider IEEE Std. 1159.

13. Next Meeting: October, 2011 – Clearwater, Florida

14. Meeting Adjourned.

Important Links: http://spd.oc.ieee.org/files/folder-20/folder-43/folder-133/folder-353 (Word Version of C62.72-2007) http://spd.oc.ieee.org/overview (IEEE Communities Forum - IEEE PES SPDC) http://spd.oc.ieee.org/files/folder-20/folder-43 (WG 3.6.6 Files) http://spd.oc.ieee.org/discussions/folder-15/folder-51 (WG 3.6.6 Discussions)

Please subscribe to these locations. Also for the ease of locating these sites, please add these to your “Favorites”.