CIM Issues #6615
Add CIMDatatype MassPerLength and Force
61970-301
Description
The following new Datatype should be added to Grid/Base/Domain/GeneralDatatypes
Class name: <CIMDatatype>MassPerLength
Note: (old) Mass per length. Enables specification of weight without details of the cross-section.
Note (New): Mass per length. It shall be a positive value or zero.
unit:InitalValue: kgPerm
Justification:
MassPerLength is used in specifying the weight of a cable independents of the length. This is needed for catalogue data for cable and wires.
Class name: <CIMDatatype>Force
Note: Force in newtons (kg·m/s²). It shall be a positive value or zero.
unit:InitalValue: N
Justification:
Force is used in specifying the maximum pull force that a cable can withstand.
Files
Proposed Solution
The following new Datatype should be added to Grid/Base/Domain/GeneralDatatypes
Class name: <CIMDatatype>MassPerLength
Note: (old) Mass per length. Enables specification of weight without details of the cross-section.
Note (New): Mass per length. It shall be a positive value or zero.
unit:InitalValue: kgPerm
Justification:
MassPerLength is used in specifying the weight of a cable independents of the length. This is needed for catalogue data for cable and wires.
Class name: <CIMDatatype>Force
Note: Force in newtons (kg·m/s²). It shall be a positive value or zero.
unit:InitalValue: N
Justification:
Force is used in specifying the maximum pull force that a cable can withstand.
Decision
29-Nov-2023 - discussed during weekly WG13 modeling call:
Agreed to apply the proposed additions to the CIM with one additional change from what is stated in the Proposed Solution:
For Force:
Note: "Force in newtons (kg·m/s²). It shall be a positive value or zero."
Should be...
Note: "Force in newtons. It shall be a positive value or zero."
Release Notes
- Added <CIMDatatype>MassPerLength, Note: Mass per length. It shall be a positive value or zero.
unit:InitalValue: kgPerm
- Note the multiplier of the datatype is set to none
- added new UnitSymbol kgPerm with the note "Mass per length in kilogram/metres (kg/m). Note: multiplier “k” is included in this unit symbol for compatibility with mass datatype."
- added <CIMDatatype>Force Note: Force in newtons. It shall be a positive value or zero.
unit:InitalValue: N
Updated by Svein Olsen 5 months ago
- File clipboard-202311281643-zqlcg.png clipboard-202311281643-zqlcg.png added
- File clipboard-202311281644-29vsk.png clipboard-202311281644-29vsk.png added
- Description updated (diff)
- Proposed Solution updated (diff)
Updated by Becky Iverson 5 months ago
Per CIM Joint Proposal Meeting held on 12/14/2023
Discussion around use of kg vs g, but agreed to stay kg to be consistent with other Mass units of measure. Treatment of Mass Per Unit Length has the same treatment of the units of Mass which use kg.
Agreed to create another issue to address additional description to be added to the 301 regarding the use of multiplier with units of Mass.
Reference Issues:
Issue addressing unit and multiplier exchange - Joint Issue
https://redmine.ucaiug.org/issues/6584
WG13 issue
https://redmine.ucaiug.org/issues/5014
Updated by Chavdar Ivanov 3 months ago
- Status changed from New to Open
- Solution to be Applied To set to CIM18v10
- Solution Version set to CIM18v10
- Solution Applied By set to Chavdar Ivanov
- Completion Date set to 02/04/2024
- Breaking Change set to No
- CIM Keywords 61970-Domain added