The group met on Tuesday, March 14 at 10:30 AM.
Minutes:
1. After an introduction by the group chair, the discussion concentrated on;
2. Scope
Following the introduction, a brief discussion about the scope of the guide led to a change in the group title. Several active members of the group proposed that the group title should be changed to: “Temperature Monitoring of Cable Systems”. It means that the dynamic rating of the cables will not be part of this guide.
Further, the group agreed that the scope should be changed to:
“This guide presents an overview of the existing and emerging temperature monitoring for cable systems. It summarizes the features, benefits, applications and limitations of both discrete and distributed temperature monitoring for cable ratings. The guide addresses also the various aspects of user-interface and data communication issues needed to make the system effective and user-friendly.”
3. Objectives
The proposed objectives were corrected to reflect the earlier decision to remove dynamic rating part of the guide.
“The purpose of this guide is to assist potential users in making an informed decision prior to specifying, purchasing and operating of a temperature monitoring system by addressing the following major issues:
- periodic or real time monitoring
- circuit length, type of terrain and backfill along the cable route.
- Identify installations that may favor the use of the distributed or discrete temperature measurement.
- Type of cable installations
- Existing or new cable installations
- Advantages/disadvantages of using a real time monitoring vs. off-line monitoring system
- Alternative communication systems for temperature monitoring
- System complexity, performance, reliability and maintenance”
4. Following last meeting presentation a proposed “definition page” was presented for further discussion.
5. Chris Grodzinski addressed also an issue of factory testing the DTS equipment as there is no standard that could be followed because of specifics of the software and hardware. The presentation, “DTS Testing … apple to apple or … to oranges” is included as Appendix C-15.
6. The following participants volunteered to be active group members:
Mohamed Chaaban
Chris Grodzinski
Tom Campbell
Sudhakar Cherukupalli
Rusty Bascom
Deepak Parmar
John Cooper
John Nierenberg
William Black
John Downes
Forest Rong
Jay Williams
The meeting was adjourned at 12:15pm.
The group met on Tuesday, October 31 at 2:00 PM.
Minutes:
1. After an introduction by the group chairman the discussion concentrated on;
• Scope & Title of the future guide
• Objectives
• Possible additions to the guide
2. Scope – Following the introduction, a brief discussion about the scope of the guide led to a change in the group title. Further, the group agreed that the scope should be changed to:
This guide presents an overview of the existing and emerging temperature monitoring systems related to power cable installations. It summarizes the features, benefits and limitations of both discrete and distributed temperature monitoring for cable ratings. This guide addresses also the various aspects of user-interface and data communication issues needed to make the system more effective and more user-friendly.
3. Objectives – The proposed objectives were corrected to reflect the earlier decision to remove dynamic rating part of the guide.
“The purpose of this guide is to assist users in applying off-line or real time temperature monitoring of power cable systems by addressing the following major issues:
- Type of cable system installation: existing or new.
- Circuit length, type of terrain and backfill along the cable route that may favor the use of distributed rather than discrete temperature measurement or vice versa.
- Advantages/disadvantages of using a real time monitoring vs. off-line monitoring system
- System complexity, performance, reliability and maintenance
- Recommended design, operating criteria and data transfer
- Influence of adjacent circuits”
4. Chris Grodzinski addressed again an issue of factory testing the DTS equipment as there is no standard that could be followed because of specifics of the software and hardware. During discussion that followed there was opposition to use this in our guide. In the presenter’s opinion such chapter would allow for easier comparison of equipment from different manufacturers. The presentation is attached as Appendix C-19.
5. Allen MacPhail proposed to add a chapter that would cover DTS purchasing specification.
The meeting was adjourned at 3:15pm.
