The implementation of the cosh, or Catenary solution to power transmission line sag

CABLE AND CHAIN
SAG & TENSION
BY CATINARY ANALYSIS

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Catenary Sag and Tensions Analysis
for Self-Damping Aluminum Conductor, Steel Reinforced ACSR Cables

Click on any sketch to see a larger version.

PARAMETER INPUT VALUE

Select Cable for Analysis (CodeWord): * Required *
*

NESC Safety Factor (SF): (See NESC Code for correct SF by Zone) * Required *
If you select 0 lbs/ft your results will not comply with the NESC requirement. *

Horizontal Span (S): * Required * (feet) *

Min. Clearance to REF (C_MIN): * Required *
(ft) *

Unloaded Initial Tension @ 70°F. (% of RTS): * Required *
*

Left Ground Elevation from REF to Pole Base(e_L): * Required *
The REF point is your actual point of interest as shown on sketches above. (ft) *

Right Ground Elevation from REF to Pole Base(e_R): * Required *
The REF point is your actual point of interest as shown on sketches above. (ft) *

Wire Attachment Height above Left Pole Base (WH_L): * Required *
This height is from where the pole meets the mounting surface to where the wire is attached. *

Wire Attachment Height above Right Pole Base (WH_R): * Required *
This height is from where the pole meets the mounting surface to where the wire is attached. *

Base Cable Unit Weight as selected below (w): * Required *
NESC requires: w(Nesc SafetyFactor) & w(Wind&Ice) be added to be added to all analysis for safety by Zone.
"w(BareWire) ONLY" is for testing only and may not be used in any NESC analysis.
Abbreviations: w=UnitWeight; w(SF)=w(Necs Safety Factor); w(W)=w(Wind);w(I)=w(Ice); w(Max W&I)= w(MaxWine&Ice). *

Select the Radial Thickness of ICE for the study w(ice): * Required *
A value greater than Zero is Required when any w(ice) selected in any one of the above.
If Low Temperature is above 32°F no ice load will be applied. *

Select Normal Horizontal Wind Speed in mph: * Required *
A value greater than Zero is Required when any w(wind) selected in any one of the above. *
Select MAXIMUM Horizontal Wind Speed in mph: * Required *
A value greater than Zero is Required when w(Max Wind Load) is selected in any one of the above. *

Lowest Temperature Expected (Tmin): * Required *
Refer to NESC Code. (°F) *

Highest Temperature Expected (Tmax): Not Required in this Demo
Refer to NESC Code.

Copyright © 2019 Crossfire, See Copyright Note№5
Page Started March 30, 2019
Completion due to expansion of website will be sometime in June of 2019

PARAMETER	INPUT VALUE
Select Cable for Analysis (CodeWord): * Required *	*
NESC Safety Factor (SF): (See NESC Code for correct SF by Zone) * Required * If you select 0 lbs/ft your results will not comply with the NESC requirement.	*
Horizontal Span (S): * Required *	(feet) *
Min. Clearance to REF (C_MIN): * Required *	(ft) *
Unloaded Initial Tension @ 70°F. (% of RTS): * Required *	*
Left Ground Elevation from REF to Pole Base(e_L): * Required * The REF point is your actual point of interest as shown on sketches above.	(ft) *
Right Ground Elevation from REF to Pole Base(e_R): * Required * The REF point is your actual point of interest as shown on sketches above.	(ft) *
Wire Attachment Height above Left Pole Base (WH_L): * Required * This height is from where the pole meets the mounting surface to where the wire is attached.	*
Wire Attachment Height above Right Pole Base (WH_R): * Required * This height is from where the pole meets the mounting surface to where the wire is attached.	*
Base Cable Unit Weight as selected below (w): * Required * NESC requires: w(Nesc SafetyFactor) & w(Wind&Ice) be added to be added to all analysis for safety by Zone. "w(BareWire) ONLY" is for testing only and may not be used in any NESC analysis. Abbreviations: w=UnitWeight; w(SF)=w(Necs Safety Factor); w(W)=w(Wind);w(I)=w(Ice); w(Max W&I)= w(MaxWine&Ice).	*
Select the Radial Thickness of ICE for the study w(ice): * Required * A value greater than Zero is Required when any w(ice) selected in any one of the above. If Low Temperature is above 32°F no ice load will be applied.	*
Select Normal Horizontal Wind Speed in mph: * Required * A value greater than Zero is Required when any w(wind) selected in any one of the above.	*
Select MAXIMUM Horizontal Wind Speed in mph: * Required * A value greater than Zero is Required when w(Max Wind Load) is selected in any one of the above.	*
Lowest Temperature Expected (Tmin): * Required * Refer to NESC Code.	(°F) *
Highest Temperature Expected (Tmax): Not Required in this Demo Refer to NESC Code.

Catenary Sag and Tensions Analysisfor Self-Damping Aluminum Conductor, Steel Reinforced ACSR Cables

Click on any sketch to see a larger version.

Copyright © 2019 Crossfire, See Copyright Note№5Page Started March 30, 2019Completion due to expansion of website will be sometime in June of 2019

Catenary Sag and Tensions Analysis
for Self-Damping Aluminum Conductor, Steel Reinforced ACSR Cables

Copyright © 2019 Crossfire, See Copyright Note№5
Page Started March 30, 2019
Completion due to expansion of website will be sometime in June of 2019