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[PP_ADDWEATHERCONDITIONS]

Adds a new weather conditions model

Weather or ambient conditions are defined by the standard and therefore vary from country to country. Power Path supports different standards (guidelines, manuals, codes) for calculation. The standard can be defined in Settings (PP_SETTINGS). Here is an overview of dialogs for different standards.

- General

Options:
– Name: unique value. 
– Temperature: value which will be used in the calculations. 
– Ice coefficient: value which will be used in the calculation. 
– Ice load occurs at this weather condition check: if checked conductors will be modelled with ice load. 

– Air density: value used for wind pressure calculation [kg/m^3 ].

– Wind velocity: wind speed used for wind pressure calculation [m/s].

– Wind conversion factor: factor applied to the wind action (standard-dependent conversion).

– Wind pressure value: manual entry of wind pressure [Pa]  (used instead of defining each parameter; air density, wind velocity, wind conversion factor).

– Wind load per length of conductor: manual entry of wind load per unit length [kN/m].

– Wind direction: direction of the wind, can be either left or right.

– Button Add: creates new weather conditions model. 
– Button Cancel: cancels the command.

- Austrian

 Options:
 – Name: unique value. 
 – Temperature: value which will be used in the calculations. 
 – Ice conversion factor: factor applied to the ice action (e.g., for different return periods / design levels, depending on the standard setup). 
 – Ice load per length of conductor: manual entry of ice load per unit length [N/m]. 
 – Ice load occurs at this weather condition check: if checked, conductors will be modelled with ice load. 
 – Air density: value used for wind pressure calculation [kg/m^3]. 
 – Wind velocity: wind speed used for wind pressure calculation [m/s]. 
 – Wind conversion factor: factor applied to the wind action (standard-dependent conversion). 
 – Wind pressure value: manual entry of wind pressure [Pa] (used instead of defining each parameter: air density, wind velocity, wind conversion factor). 
 – Wind load per length of conductor: manual entry of wind load per unit length [N/m]. 
 – Wind direction: direction of the wind, can be either left or right. 
 

– Button Add: creates new weather conditions model. 
– Button Cancel: cancels the command. 

- Belgian

 Options:
 – Name: unique value. 
 – Temperature: value which will be used in the calculations. 
 – Ice thickness: ice thickness used by the Belgian standard [mm]. 
 – Ice layer density: density of the ice layer used to convert ice thickness into a line load [kg/m^3]. 
 – Ice conversion factor: factor applied to the ice action (e.g., for different return periods / design levels, depending on the standard setup). 
 – Ice load per length of conductor: manual entry of ice load per unit length [N/m]. 
 – Ice load occurs at this weather condition check: if checked, conductors will be modelled with ice load. 
 – Air density: value used for wind pressure calculation [kg/m^3]. 
 – Wind velocity: wind speed used for wind pressure calculation [m/s]. 
 – Wind conversion factor: factor applied to the wind action (standard-dependent conversion). 
 – Wind pressure value: manual entry of wind pressure [Pa] (used instead of defining each parameter: air density, wind velocity, wind conversion factor). 
 – Wind load per length of conductor: manual entry of wind load per unit length [N/m]. 
 – Wind direction: direction of the wind, can be either left or right. 
 

– Button Add: creates new weather conditions model. 
– Button Cancel: cancels the command. 

- British

 Options:
 – Name: unique value. 
 – Temperature: value which will be used in the calculations. 
 – Basic ice thickness: basic ice thickness used by the British standard [mm]. 
 – Altitude: altitude above sea level used by the British standard to determine the ice load [m]. 
 – Partial safety factor: partial safety factor applied to the ice thickness, according to the standard. 
 – No. of conductors: number of phases and ground wires (N_c), used to calculate the shape factor K_c. 
 – Tower member check: if checked, the ice load is determined for a tower member. 
 – Ice density: density of ice used to convert ice thickness into a line load, either 510 kg/m^3 (still air) or 900 kg/m^3 (wind + ice). 
 – Ice conversion factor: factor applied to the ice action (e.g., for different return periods / design levels, depending on the standard setup). 
 – Ice load per length of conductor: manual entry of ice load per unit length [N/m]. 
 – Ice load occurs at this weather condition check: if checked, conductors will be modelled with ice load. 
 – Air density: value used for wind pressure calculation [kg/m^3]. 
 – Wind velocity: wind speed used for wind pressure calculation [m/s]. 
 – Wind conversion factor: factor applied to the wind action (standard-dependent conversion). 
 – Wind pressure value: manual entry of wind pressure [Pa] (used instead of defining each parameter: air density, wind velocity, wind conversion factor). 
 – Wind direction: direction of the wind, can be either left or right. 
 

– Button Add: creates new weather conditions model. 
– Button Cancel: cancels the command. 

- Croatian (The same formulas and parameters are also used for calculations for the following countries: Bosnia and Herzegovina, Montenegro, and North Macedonia.)

 Options:
 – Name: unique value. 
 – Temperature: value which will be used in the calculations. 
 – Ice coefficient: coefficient defined by the standard and used to calculate the ice load for the selected conditions. 
 – Ice conversion factor: factor applied to the ice action (e.g., for different return periods / design levels, depending on the standard setup). 
 – Ice load per length of conductor: manual entry of ice load per unit length [kN/m]. 
 – Ice load occurs at this weather condition check: if checked, conductors will be modelled with ice. 
 – Wind pressure value: wind pressure used to model additional wind load [Pa]. 
 – Wind direction: direction of the wind, can be either left or right. 
 

– Button Add: creates new weather conditions model. 
– Button Cancel: cancels the command. 

- Czech

 Options:
 – Name: unique value. 
 – Temperature: value which will be used in the calculations. 
 – Icing zone: selects the Czech icing zone (e.g., I-0); the selected zone determines the ice load according to the standard. 
 – Local condition factor: factor that takes the local conditions at the location into account, according to the standard. 
 – Height factor: factor that takes the height into account, according to the standard. 
 – Ice conversion factor: factor applied to the ice action (e.g., for different return periods / design levels, depending on the standard setup). 
 – Ice load per length of conductor: manual entry of ice load per unit length [N/m]. 
 – Ice load occurs at this weather condition check: if checked, conductors will be modelled with ice load. 
 – Air density: value used for wind pressure calculation [kg/m^3]. 
 – Wind velocity: wind speed used for wind pressure calculation [m/s]. 
 – Wind conversion factor: factor applied to the wind action (standard-dependent conversion). 
 – Wind pressure value: manual entry of wind pressure [Pa] (used instead of defining each parameter: air density, wind velocity, wind conversion factor). 
 – Wind load per length of conductor: manual entry of wind load per unit length [N/m]. 
 – Wind direction: direction of the wind, can be either left or right. 
 

– Button Add: creates new weather conditions model. 
– Button Cancel: cancels the command. 

- Danish

 Options:
 – Name: unique value. 
 – Temperature: value which will be used in the calculations. 
 – Ice conversion factor: factor applied to the ice action (e.g., for different return periods / design levels, depending on the standard setup). 
 – Ice load per length of conductor: manual entry of ice load per unit length [N/m]. 
 – Ice load occurs at this weather condition check: if checked, conductors will be modelled with ice load. 
 – Air density: value used for wind pressure calculation [kg/m^3]. 
 – Wind velocity: wind speed used for wind pressure calculation [m/s]. 
 – Wind conversion factor: factor applied to the wind action (standard-dependent conversion). 
 – Wind pressure value: manual entry of wind pressure [Pa] (used instead of defining each parameter: air density, wind velocity, wind conversion factor). 
 – Wind load per length of conductor: manual entry of wind load per unit length [N/m]. 
 – Wind direction: direction of the wind, can be either left or right. 
 

– Button Add: creates new weather conditions model. 
– Button Cancel: cancels the command. 

- Dutch

 Options:
 – Name: unique value. 
 – Temperature: value which will be used in the calculations. 
 – Ice load - Region: selects the region (e.g., Region A) according to the Dutch standard; the area covered by the selected region is described below the selection, and the region determines the ice load. 
 – Ice conversion factor: factor applied to the ice action (e.g., for different return periods / design levels, depending on the standard setup). 
 – Ice load per length of conductor: manual entry of ice load per unit length [N/m]. 
 – Ice load occurs at this weather condition check: if checked, conductors will be modelled with ice load. 
 – Air density: value used for wind pressure calculation [kg/m^3]. 
 – Wind velocity: wind speed used for wind pressure calculation [m/s]. 
 – Wind conversion factor: factor applied to the wind action (standard-dependent conversion). 
 – Wind pressure value: manual entry of wind pressure [Pa] (used instead of defining each parameter: air density, wind velocity, wind conversion factor). 
 – Wind load per length of conductor: manual entry of wind load per unit length [N/m]. 
 – Wind direction: direction of the wind, can be either left or right. 
 

– Button Add: creates new weather conditions model. 
– Button Cancel: cancels the command. 

- Estonian

 Options:
 – Name: unique value. 
 – Temperature: value which will be used in the calculations. 
 – Ice thickness: ice thickness used by the Estonian standard [mm]. 
 – Ice conversion factor: factor applied to the ice action (e.g., for different return periods / design levels, depending on the standard setup). 
 – Ice load per length of conductor: manual entry of ice load per unit length [N/m]. 
 – Ice load occurs at this weather condition check: if checked, conductors will be modelled with ice load. 
 – Air density: value used for wind pressure calculation [kg/m^3]. 
 – Wind velocity: wind speed used for wind pressure calculation [m/s]. 
 – Wind conversion factor: factor applied to the wind action (standard-dependent conversion). 
 – Wind pressure value: manual entry of wind pressure [Pa] (used instead of defining each parameter: air density, wind velocity, wind conversion factor). 
 – Wind load per length of conductor: manual entry of wind load per unit length [N/m]. 
 – Wind direction: direction of the wind, can be either left or right. 
 

– Button Add: creates new weather conditions model. 
– Button Cancel: cancels the command. 

- Finnish

 Options:
 – Name: unique value. 
 – Temperature: value which will be used in the calculations. 
 – Icing category - Characteristic ice load: the user enters the extreme ice load I₅₀ [N/m]; the dialog then shows the matching icing category (e.g., I (0 - 50 m)). 
 – Ice conversion factor: factor applied to the ice action (e.g., for different return periods / design levels, depending on the standard setup). 
 – Ice load per length of conductor: manual entry of ice load per unit length [N/m]. 
 – Ice load occurs at this weather condition check: if checked, conductors will be modelled with ice load. 
 – Air density: value used for wind pressure calculation [kg/m^3]. 
 – Wind velocity: wind speed used for wind pressure calculation [m/s]. 
 – Wind conversion factor: factor applied to the wind action (standard-dependent conversion). 
 – Wind pressure value: manual entry of wind pressure [Pa] (used instead of defining each parameter: air density, wind velocity, wind conversion factor). 
 – Wind load per length of conductor: manual entry of wind load per unit length [N/m]. 
 – Wind direction: direction of the wind, can be either left or right. 
 

– Button Add: creates new weather conditions model. 
– Button Cancel: cancels the command. 

- French

 Options:
 – Name: unique value. 
 – Temperature: value which will be used in the calculations. 
 – HVA ice load: the ice load per length is entered directly [N/m]; the altitude label below the value (H ≤ 600 m or H > 600 m) follows the entered value. 
 – HVB ice load: defines the ice thickness according to the French standard [mm]. 
 – Ice conversion factor: factor applied to the ice action (e.g., for different return periods / design levels, depending on the standard setup). 
 – Ice load per length of conductor: manual entry of ice load per unit length [N/m]. 
 – Ice load occurs at this weather condition check: if checked, conductors will be modelled with ice load. 
 – Air density: value used for wind pressure calculation [kg/m^3]. 
 – Wind velocity: wind speed used for wind pressure calculation [m/s]. 
 – Wind conversion factor: factor applied to the wind action (standard-dependent conversion). 
 – Wind pressure value: manual entry of wind pressure [Pa] (used instead of defining each parameter: air density, wind velocity, wind conversion factor). 
 – Wind load per length of conductor: manual entry of wind load per unit length [N/m]. 
 – Wind direction: direction of the wind, can be either left or right. 
 

– Button Add: creates new weather conditions model. 
– Button Cancel: cancels the command. 

- German

 Options:
 – Name: unique value. 
 – Temperature: value which will be used in the calculations. 
 – Ice load zone – Altitude above sea level: selects the ice load zone (e.g., E1: H < 400 m) according to the German standard; the selected zone is used to determine the ice load. 
 – Ice conversion factor: factor applied to the standard ice value (e.g., for different return periods / design levels, depending on the standard setup). 
 – Ice load per length of conductor: manual entry of ice load per unit length [kN/m]. 
 – Ice load occurs at this weather condition check: if checked, conductors will be modelled with ice load. 
 – Air density: value used for wind pressure calculation [kg/m^3]. 
 – Wind velocity: wind speed used for wind pressure calculation [m/s]. 
 – Wind conversion factor: factor applied to the wind action (standard-dependent conversion). 
 – Wind pressure value: manual entry of wind pressure [Pa] (used instead of defining each parameter: air density, wind velocity, wind conversion factor). 
 – Wind load per length of conductor: manual entry of wind load per unit length [kN/m]. 
 – Wind direction: direction of the wind, can be either left or right. 
 

– Button Add: creates new weather conditions model. 
– Button Cancel: cancels the command. 

- Icelandic

 Options:
 – Name: unique value. 
 – Temperature: value which will be used in the calculations. 
 – Reference ice load: reference ice load according to the Icelandic standard [N/m]. 
 – Wet snow / In-cloud icing: selects the type of ice accretion: wet snow (700 kg/m^3) or in-cloud icing (500 kg/m^3). 
 – Number of sub-conductors: number of sub-conductors in the bundle. 
 – Combined partial factor: combined partial factor applied to the ice load, according to the standard. 
 – Combination factor: combination factor applied to the ice load, according to the standard. 
 – Ice load per length of conductor: manual entry of ice load per unit length [N/m]. 
 – Ice load occurs at this weather condition check: if checked, conductors will be modelled with ice load. 
 – Air density: value used for wind pressure calculation [kg/m^3]. 
 – Wind velocity: wind speed used for wind pressure calculation [m/s]. 
 – Wind conversion factor: factor applied to the wind action (standard-dependent conversion). 
 – Wind pressure value: manual entry of wind pressure [Pa] (used instead of defining each parameter: air density, wind velocity, wind conversion factor). 
 – Wind load per length of conductor: manual entry of wind load per unit length [N/m]. 
 – Wind direction: direction of the wind, can be either left or right. 
 

– Button Add: creates new weather conditions model. 
– Button Cancel: cancels the command. 

- Italian

 Options:
 – Name: unique value. 
 – Temperature: value which will be used in the calculations. 
 – Load type: selects the Italian load type (e.g., Load type 1 – ice, Load type 2/3 – snow) which determines the characteristic ice/snow thickness according to the standard. 
 – Altitude: selects the altitude range used by the Italian standard (≤ 600 m or > 600 m); this affects the characteristic ice/snow thickness for the selected load type. 
 – Ice density: density of ice/snow used to convert the selected thickness into a line load [kg/m^3]. 
 – Ice conversion factor: factor applied to the characteristic thickness/load (e.g., for different return periods / design levels, depending on the standard setup). 
 – Ice load per length of conductor: manual entry of ice load per unit length [kN/m]. 
 – Ice load occurs at this weather condition check: if checked, conductors will be modelled with ice load. 
 – Air density: value used for wind pressure calculation [kg/m^3]. 
 – Wind velocity: wind speed used for wind pressure calculation [m/s]. 
 – Wind conversion factor: factor applied to the wind action (standard-dependent conversion). 
 – Wind pressure value: manual entry of wind pressure [Pa] (used instead of defining each parameter: air density, wind velocity, wind conversion factor). 
 – Wind direction: direction of the wind, can be either left or right. 
 

– Button Add: creates new weather conditions model. 
– Button Cancel: cancels the command. 

- Latvian

 Options:
 – Name: unique value. 
 – Temperature: value which will be used in the calculations. 
 – Ice load - Ice thickness: ice thickness used by the Latvian standard [mm]. 
 – Height correction coefficient: coefficient entered by the user, which corrects the ice thickness for height above ground. 
 – Diameter correction coefficient: coefficient entered by the user, which corrects the ice thickness for conductor diameter. 
 – Ice load per length of conductor: manual entry of ice load per unit length [N/m]. 
 – Ice load occurs at this weather condition check: if checked, conductors will be modelled with ice load. 
 – Air density: value used for wind pressure calculation [kg/m^3]. 
 – Wind velocity: wind speed used for wind pressure calculation [m/s]. 
 – Wind conversion factor: factor applied to the wind action (standard-dependent conversion). 
 – Wind pressure value: manual entry of wind pressure [Pa] (used instead of defining each parameter: air density, wind velocity, wind conversion factor). 
 – Wind load per length of conductor: manual entry of wind load per unit length [N/m]. 
 – Wind direction: direction of the wind, can be either left or right. 
 

– Button Add: creates new weather conditions model. 
– Button Cancel: cancels the command. 

- Lithuanian

 Options:
 – Name: unique value. 
 – Temperature: value which will be used in the calculations. 
 – Ice load - Ice thickness: ice thickness used by the Lithuanian standard [mm]. 
 – Height correction coefficient: coefficient entered by the user, which corrects the ice thickness for height above ground. 
 – Diameter correction coefficient: coefficient entered by the user, which corrects the ice thickness for conductor diameter. 
 – Ice load per length of conductor: manual entry of ice load per unit length [N/m]. 
 – Ice load occurs at this weather condition check: if checked, conductors will be modelled with ice load. 
 – Air density: value used for wind pressure calculation [kg/m^3]. 
 – Wind velocity: wind speed used for wind pressure calculation [m/s]. 
 – Wind conversion factor: factor applied to the wind action (standard-dependent conversion). 
 – Wind pressure value: manual entry of wind pressure [Pa] (used instead of defining each parameter: air density, wind velocity, wind conversion factor). 
 – Wind load per length of conductor: manual entry of wind load per unit length [N/m]. 
 – Wind direction: direction of the wind, can be either left or right. 
 

– Button Add: creates new weather conditions model. 
– Button Cancel: cancels the command. 

- Norwegian

 Options:
 – Name: unique value. 
 – Temperature: value which will be used in the calculations. 
 – Ice density: density of ice used to convert ice thickness into a line load [kg/m^3]. 
 – Ice thickness: ice thickness used by the Norwegian standard [mm]. 
 – Ice conversion factor:  factor applied to the ice thickness/load (e.g., for different return periods / design levels, depending on the standard setup). 
 – Ice load per length of conductor: manual entry of ice load per unit length [kN/m]. 
 – Ice load occurs at this weather condition check:  if checked, conductors will be modelled with ice load for this weather condition. 
 – Air density: value used for wind pressure calculation [kg/m^3]. 
 – Wind velocity: wind speed used for wind pressure calculation [m/s]. 
 – Wind conversion factor: factor applied to the wind action (standard-dependent conversion). 
 – Wind pressure value: manual entry of wind pressure [Pa] (used instead of defining each parameter: air density, wind velocity, wind conversion factor). 
 – Wind direction: direction of the wind, can be either left or right. 
 

– Button Add: creates new weather conditions model. 
– Button Cancel: cancels the command. 

- Polish

 Options:
 – Name: unique value. 
 – Temperature: value which will be used in the calculations. 
 – Ice load zone: selects the Polish ice load zone (e.g., S1-Plains (light ice load)); the selected zone determines the ice load according to the standard. 
 – Ice conversion factor: factor applied to the ice action (e.g., for different return periods / design levels, depending on the standard setup). 
 – Ice load per length of conductor: manual entry of ice load per unit length [N/m]. 
 – Ice load occurs at this weather condition check: if checked, conductors will be modelled with ice load. 
 – Air density: value used for wind pressure calculation [kg/m^3]. 
 – Wind velocity: wind speed used for wind pressure calculation [m/s]. 
 – Wind conversion factor: factor applied to the wind action (standard-dependent conversion). 
 – Wind pressure value: manual entry of wind pressure [Pa] (used instead of defining each parameter: air density, wind velocity, wind conversion factor). 
 – Wind load per length of conductor: manual entry of wind load per unit length [N/m]. 
 – Wind direction: direction of the wind, can be either left or right. 
 

– Button Add: creates new weather conditions model. 
– Button Cancel: cancels the command. 

- Portuguese

 Options:
 – Name: unique value. 
 – Temperature: value which will be used in the calculations. 
 – Ice load - Altitude: selects the altitude range used by the Portuguese standard (≤ 600 m or > 600 m); the selected range determines the ice load. 
 – Ice load per length of conductor: manual entry of ice load per unit length [N/m]. 
 – Ice load occurs at this weather condition check: if checked, conductors will be modelled with ice load. 
 – Air density: value used for wind pressure calculation [kg/m^3]. 
 – Wind velocity: wind speed used for wind pressure calculation [m/s]. 
 – Wind conversion factor: factor applied to the wind action (standard-dependent conversion). 
 – Wind pressure value: manual entry of wind pressure [Pa] (used instead of defining each parameter: air density, wind velocity, wind conversion factor). 
 – Wind load per length of conductor: manual entry of wind load per unit length [N/m]. 
 – Wind direction: direction of the wind, can be either left or right. 
 

– Button Add: creates new weather conditions model. 
– Button Cancel: cancels the command. 

- Romanian

 Options:
 – Name: unique value. 
 – Temperature: value which will be used in the calculations. 
 – Ice thickness: ice thickness used by the Romanian standard [mm]. 
 – Ice zone: indicates the selected Romanian ice zone (e.g., Zone 1); the zone defines the applicable ice parameters/limits for the location. 
 – Ice layer density: density of the ice layer used to convert ice thickness into a line load [kg/m^3]. 
 – Ice conversion factor: factor applied to the ice thickness/load (e.g., for different return periods / design levels, depending on the standard setup). 
 – Ice load per length of conductor: manual entry of ice load per unit length [kN/m]. 
 – Ice load occurs at this weather condition check: if checked, conductors will be modelled with ice load. 
 – Air density: value used for wind pressure calculation [kg/m^3]. 
 – Wind velocity: wind speed used for wind pressure calculation [m/s]. 
 – Wind conversion factor: factor applied to the wind action (standard-dependent conversion). 
 – Wind pressure value: manual entry of wind pressure [Pa] (used instead of defining each parameter: air density, wind velocity, wind conversion factor). 
 – Wind load per length of conductor: manual entry of wind load per unit length [kN/m]. 
 – Wind direction: direction of the wind, can be either left or right. 
 

– Button Add: creates new weather conditions model. 
– Button Cancel: cancels the command. 

- Serbian

 Options:
 – Name: unique value. 
 – Temperature: value which will be used in the calculations. 
 – Ice coefficient: coefficient defined by the Serbian standard and used to calculate the ice load for the selected conditions. 
 – Ice conversion factor: factor applied to the ice action (e.g., for different return periods / design levels, depending on the standard setup). 
 – Ice load per length of conductor: manual entry of ice load per unit length [kN/m]. 
 – Ice load occurs at this weather condition check: if checked, conductors will be modelled with ice load. 
 – Wind pressure value: wind pressure used to model additional wind load [Pa]. 
 – Wind direction: direction of the wind, can be either left or right. 
 

– Button Add: creates new weather conditions model. 
– Button Cancel: cancels the command. 

- Slovak

 Options:
 – Name: unique value. 
 – Temperature: value which will be used in the calculations. 
 – Icing zone: selects the Slovak icing zone (e.g., I-0); the selected zone determines the ice load according to the standard. 
 – Local condition factor: factor that takes the local conditions at the location into account, according to the standard. 
 – Height factor: factor that takes the height into account, according to the standard. 
 – Ice conversion factor: factor applied to the ice action (e.g., for different return periods / design levels, depending on the standard setup). 
 – Ice load per length of conductor: manual entry of ice load per unit length [N/m]. 
 – Ice load occurs at this weather condition check: if checked, conductors will be modelled with ice load. 
 – Air density: value used for wind pressure calculation [kg/m^3]. 
 – Wind velocity: wind speed used for wind pressure calculation [m/s]. 
 – Wind conversion factor: factor applied to the wind action (standard-dependent conversion). 
 – Wind pressure value: manual entry of wind pressure [Pa] (used instead of defining each parameter: air density, wind velocity, wind conversion factor). 
 – Wind load per length of conductor: manual entry of wind load per unit length [N/m]. 
 – Wind direction: direction of the wind, can be either left or right. 
 

– Button Add: creates new weather conditions model. 
– Button Cancel: cancels the command. 

- Slovenian

 Options:
 – Name: unique value. 
 – Temperature: value which will be used in the calculations. 
 – Ice coefficient: coefficient defined by the standard and used to calculate the ice load for the selected conditions. 
 – Ice conversion factor: factor applied to the ice action (e.g., for different return periods / design levels, depending on the standard setup). 
 – Ice load per length of conductor: manual entry of ice load per unit length [kN/m]. 
 – Ice load occurs at this weather condition check: if checked, conductors will be modelled with ice load. 
 – Wind pressure value: wind pressure used to model additional wind load [Pa]. 
 – Wind direction: direction of the wind, can be either left or right. 
 

– Button Add: creates new weather conditions model. 
– Button Cancel: cancels the command. 

- Spanish

 Options:
 – Name: unique value. 
 – Temperature: value which will be used in the calculations. 
 – Zone – Altitude above sea level: selects the Spanish ice zone based on altitude (e.g., Zone 1: H < 500 m); the selected zone determines the applicable ice action according to the standard. 
 – Ice conversion factor: factor applied to the standard ice action (e.g., for different return periods / design levels, depending on the standard setup). 
 – Ice load per length of conductor: manual entry of ice load per unit length [kN/m]. 
 – Ice load occurs at this weather condition check: if checked, conductors will be modelled with ice load. 
 – Air density: value used for wind pressure calculation [kg/m^3]. 
 – Wind velocity: wind speed used for wind pressure calculation [m/s]. 
 – Wind conversion factor: factor applied to the wind action (standard-dependent conversion). 
 – Wind pressure value: manual entry of wind pressure [Pa] (used instead of defining each parameter: air density, wind velocity, wind conversion factor). 
 – Wind direction: direction of the wind, can be either left or right. 
 

– Button Add: creates new weather conditions model. 
– Button Cancel: cancels the command. 

- Swedish

 Options:
 – Name: unique value. 
 – Temperature: value which will be used in the calculations. 
 – Line class – Ice load condition: selects the Swedish line class / ice-load condition (e.g., Class A / Class B – ice load at normal or no wind); the selected class defines the standard ice/wind parameters used to determine the ice load. 
 – Air density (ice condition): air density used within the selected ice-load condition [kg/m^3]. 
 – Wind speed (ice condition): wind speed used within the selected ice-load condition [m/s]. 
 – Drag coefficient: aerodynamic drag coefficient used for calculating the load under the selected condition. 
 – Ice thickness: ice thickness used for calculating the ice load [mm]. 
 – Ice load value: calculated ice line load for the selected class/parameters [kN/m]. 
 – Ice load per length of conductor: manual entry of ice load per unit length [kN/m]. 
 – Ice load occurs at this weather condition check: if checked, conductors will be modelled with ice load. 
 – Air density: value used for wind pressure calculation [kg/m^3]. 
 – Wind velocity: wind speed used for wind pressure calculation [m/s]. 
 – Wind conversion factor: factor applied to the wind action (standard-dependent conversion). 
 – Wind pressure value: manual entry of wind pressure [Pa] (used instead of defining each parameter: air density, wind velocity, wind conversion factor). 
 – Wind load per length of conductor: manual entry of wind load per unit length [kN/m]. 
 – Wind direction: direction of the wind, can be either left or right. 
 

– Button Add: creates new weather conditions model. 
– Button Cancel: cancels the command. 

- Swiss

 Options:
 – Name: unique value. 
 – Temperature: value which will be used in the calculations. 
 – Line type: selects the line category according to the Swiss regulation: Low-voltage line (Schwachstromfreileitungen, 8 N/m) or High-voltage line (Starkstromfreileitungen, 20 N/m). The ice load depends on the category of the line, not on the exact nominal voltage. 
 – Ice conversion factor: factor applied to the ice action (e.g., for different return periods / design levels, depending on the standard setup). 
 – Ice load per length of conductor: manual entry of ice load per unit length [N/m]. 
 – Ice load occurs at this weather condition check: if checked, conductors will be modelled with ice load. 
 – Wind pressure value: wind pressure used to model additional wind load [Pa]. 
 – Wind direction: direction of the wind, can be either left or right. 
 

– Button Add: creates new weather conditions model. 
– Button Cancel: cancels the command. 

For a detailed explanation and review of the calculation formulas for each standard, see the Formulas and Equations article.

 Watch video tutorial to see how the command works