Desktop Configuration Guide
Standards and Construction Grades

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All standards and construction grade information is detailed in the StandardsAndConstructionGrade.xml file located in the Miner and Miner\ArcFM Solution\Bin\XML directory of your Overhead Design Analysis (OHDA) installation. You can manually edit this file to configure the safety (reduction) factors and component overloads based on loading district. Once you've made your edits, save the file in the same directory with the same file name.

XML Structure for StandardsAndConstructionGrade File

The StandardsAndConstructionGrade XML file is divided into four main sections: design standards, load factors, rule sets, and construction grades.

Tag Definition
<StandardsAndConstructionGrades> Root element.
<DesignStandards> Container element for DesignStandard tags. Defines available loading districts.
<Overloads> Container element for LoadFactors tags. Specifies overload values.
<RuleSets> Container element for RuleSet tags. Maps individual components with load factors.
<ConstructionGrades> Container element for ConstructionGrade tags. Associates design standards and rule sets through the construction grade.
<IceDensityPoundsPerFoot> OHDA derives the weight of ice on conductors based on ice density and ice area. NESC and CSA have different ice density values when calculating load cases. The standard you use will determine the value you should place inside this tag.
DesignStandards tags
<DesignStandard> Container element that defines individual design standards.
<Name> The name of the design standard. This name will appear in OHDA's user interface (UI).
<DesignLimit> Container element to hold specifications for the design limit.
<Name> The name of the design limit.
<LimitID> A valid GUID to identify the design limit.
<PercentRBS> The rated breaking strength as a percentage.
<State> The state of the load.
<DesignScenario> Container element for the design scenario specifications.
<IceThickness> Thickness of ice in inches.
<SafetyFactor> The percentage of reduction in pounds per foot.
<Temperature> The temperature of the environment in degrees Fahrenheit.
<WindPressure> The pressure of the wind in pounds per square foot.
Overload tags
<LoadFactors> Container element for load factor specifications.
Attributes
Name Name of the load factor.
The following tags are required. If your standard does not provide overload factors, enter a value of 1 for each element.
<VerticalElsewhere> The overload factor to apply to downward vertical force.
<TransverseWindElsewhere> The overload factor to apply to transverse wind force.
<TransverseWireElsewhere> The overload factor to apply to transverse wire force.
<LongitudinalElsewhere> The overload factor to apply to force along the length of a component.
<LongitudinalDeadEndElsewhere> Same as above in the case of a dead end.
RuleSets tags
<RuleSet> Container element for the rule set specification.
Attributes
Name Name of the rule set.
<Pole> Defines the load factor mapping for the component.
Attributes (these attributes apply to all tags below)
Reduction (optional) Percentage of reduction.
DeadEndReduction (optional) Percentage of reduction on a dead end.
<Guy> Defines the load factor mapping for the component.
<Anchor> Defines the load factor mapping for the component.
<Crossarm> Defines the load factor mapping for the component.
<BracedBracket> Defines the load factor mapping for the component.
<StandoffBracket> Defines the load factor mapping for the component.
<PoleTopBracket> Defines the load factor mapping for the component.
<UpsetBolt> Defines the load factor mapping for the component.
<EyeBolt> Defines the load factor mapping for the component.
<Insulator> Defines the load factor mapping for the component. Included for backwards compatibility.
<PinInsulator> Defines the load factor mapping for the component.
<PostInsulator> Defines the load factor mapping for the component.
<SpoolInsulator> Defines the load factor mapping for the component.
<SuspensionInsulator> Defines the load factor mapping for the component.
ConstructionGrades tags
<ConstructionGrade> Container element for the construction grade specifications.
Attributes
Name Name of the construction grade.
Default Name of the default rule set to use.
<Pair> Container element for Standard and RuleSet pairs.
<Standard> Name of the design standard. OHDA's UI will display this value.
<RuleSet> The rule set to apply when the user selects the paired standard.
Example StandardsAndConstructionGrades XML File
Copy Code 
<?xml version="1.0"?>
<StandardsAndConstructionGrades>
  <DesignStandards>
    <DesignStandard>
      <Name>NESC - Light</Name>
      <DesignLimit>
        <Name>NESC - Light</Name>
        <LimitID>00000000-0000-0000-0000-000000000000</LimitID>
        <PercentRBS>0.6</PercentRBS>
        <State>Initial</State>
        <DesignScenario>
          <IceThickness>0</IceThickness>
          <SafetyFactor>0</SafetyFactor>
          <Temperature>30</Temperature>
          <WindPressure>9</WindPressure>
        </DesignScenario>
      </DesignLimit>
    </DesignStandard>
    <DesignStandard>
      <Name>NESC - Medium</Name>
      <DesignLimit>
        <Name>NESC - Medium</Name>
        <LimitID>00000000-0000-0000-0000-000000000000</LimitID>
        <PercentRBS>0.6</PercentRBS>
        <State>Initial</State>
        <DesignScenario>
          <IceThickness>0.25</IceThickness>
          <SafetyFactor>0</SafetyFactor>
          <Temperature>15</Temperature>
          <WindPressure>4</WindPressure>
        </DesignScenario>
      </DesignLimit>
    </DesignStandard>
    <DesignStandard>
      <Name>NESC - Heavy</Name>
      <DesignLimit>
        <Name>NESC - Heavy</Name>
        <LimitID>00000000-0000-0000-0000-000000000000</LimitID>
        <PercentRBS>0.6</PercentRBS>
        <State>Initial</State>
        <DesignScenario>
          <IceThickness>0.5</IceThickness>
          <SafetyFactor>0</SafetyFactor>
          <Temperature>0</Temperature>
          <WindPressure>4</WindPressure>
        </DesignScenario>
      </DesignLimit>
    </DesignStandard>
    <DesignStandard>
      <Name>NESC - Bare Wire (Initial)</Name>
      <DesignLimit>
        <Name>NESC - Bare Wire (Initial)</Name>
        <LimitID>00000000-0000-0000-0000-000000000000</LimitID>
        <PercentRBS>0.35</PercentRBS>
        <State>Initial</State>
        <DesignScenario>
          <IceThickness>0</IceThickness>
          <SafetyFactor>0</SafetyFactor>
          <Temperature>60</Temperature>
          <WindPressure>0</WindPressure>
        </DesignScenario>
      </DesignLimit>
    </DesignStandard>
    <DesignStandard>
      <Name>NESC - Bare Wire (Final)</Name>
      <DesignLimit>
        <Name>NESC - Bare Wire (Final)</Name>
        <LimitID>00000000-0000-0000-0000-000000000000</LimitID>
        <PercentRBS>0.25</PercentRBS>
        <State>Final</State>
        <DesignScenario>
          <IceThickness>0</IceThickness>
          <SafetyFactor>0</SafetyFactor>
          <Temperature>60</Temperature>
          <WindPressure>0</WindPressure>
        </DesignScenario>
      </DesignLimit>
    </DesignStandard>
    <DesignStandard>
      <Name>NESC - Extreme Ice with Wind</Name>
      <DesignLimit>
        <Name>NESC - Extreme Ice with Wind</Name>
        <LimitID>00000000-0000-0000-0000-000000000000</LimitID>
        <PercentRBS>0.6</PercentRBS>
        <State>Initial</State>
        <DesignScenario>
          <IceThickness>1</IceThickness>
          <SafetyFactor>0</SafetyFactor>
          <Temperature>60</Temperature>
          <WindPressure>6.4</WindPressure>
        </DesignScenario>
      </DesignLimit>
    </DesignStandard>
  </DesignStandards>
  <Overloads>
    <LoadFactors Name="No-Load-Factors">
      <VerticalElsewhere>1</VerticalElsewhere>
      <TransverseWindElsewhere>1</TransverseWindElsewhere>
      <TransverseWireElsewhere>1</TransverseWireElsewhere>
      <LongitudinalElsewhere>1</LongitudinalElsewhere>
      <LongitudinalDeadEndElsewhere>1</LongitudinalDeadEndElsewhere>
    </LoadFactors>
    <LoadFactors Name="NESC-Grade-B-Default">
      <VerticalElsewhere>1.5</VerticalElsewhere>
      <TransverseWindElsewhere>2.5</TransverseWindElsewhere>
      <TransverseWireElsewhere>1.65</TransverseWireElsewhere>
      <LongitudinalElsewhere>1.1</LongitudinalElsewhere>
      <LongitudinalDeadEndElsewhere>1.65</LongitudinalDeadEndElsewhere>
    </LoadFactors>
    <LoadFactors Name="NESC-Grade-C-Default">
      <VerticalElsewhere>1.9</VerticalElsewhere>
      <TransverseWindElsewhere>1.75</TransverseWindElsewhere>
      <TransverseWireElsewhere>1.3</TransverseWireElsewhere>
      <LongitudinalElsewhere>1</LongitudinalElsewhere>
      <LongitudinalDeadEndElsewhere>1.3</LongitudinalDeadEndElsewhere>
    </LoadFactors>
    <LoadFactors Name="NESC-Grade-C-Metal">
      <VerticalElsewhere>1.5</VerticalElsewhere>
      <TransverseWindElsewhere>1.75</TransverseWindElsewhere>
      <TransverseWireElsewhere>1.3</TransverseWireElsewhere>
      <LongitudinalElsewhere>1</LongitudinalElsewhere>
      <LongitudinalDeadEndElsewhere>1.1</LongitudinalDeadEndElsewhere>
    </LoadFactors>
  </Overloads>
  <RuleSets>
    <Ruleset Name="NESC Grade B - 250B">
      <Pole Reduction="0.65">NESC-Grade-B-Default</Pole>
      <Guy Reduction="0.9">NESC-Grade-B-Default</Guy>
      <Anchor>NESC-Grade-B-Default</Anchor>
      <Crossarm Reduction="0.65">NESC-Grade-B-Default</Crossarm>
      <BracedBracket>NESC-Grade-B-Default</BracedBracket>
      <StandoffBracket>NESC-Grade-B-Default</StandoffBracket>
      <PoleTopBracket>NESC-Grade-B-Default</PoleTopBracket>
      <UpsetBolt>NESC-Grade-B-Default</UpsetBolt>
      <EyeBolt>NESC-Grade-B-Default</EyeBolt>
      <Insulator>NESC-Grade-B-Default</Insulator>
      <PinInsulator Reduction="0.4">NESC-Grade-B-Default</PinInsulator>
      <PostInsulator Reduction="0.4">NESC-Grade-B-Default</PostInsulator>
      <SpoolInsulator Reduction="0.5">NESC-Grade-B-Default</SpoolInsulator>
      <SuspensionInsulator Reduction="0.5">NESC-Grade-B-Default</SuspensionInsulator>
    </Ruleset>
    <Ruleset Name="NESC Grade C - 250B">
      <Pole Reduction="0.85">NESC-Grade-C-Default</Pole>
      <Guy Reduction="0.9">NESC-Grade-C-Default</Guy>
      <Anchor>NESC-Grade-C-Default</Anchor>
      <Crossarm Reduction="0.85">NESC-Grade-C-Default</Crossarm>
      <BracedBracket>NESC-Grade-C-Default</BracedBracket>
      <StandoffBracket>NESC-Grade-C-Default</StandoffBracket>
      <PoleTopBracket>NESC-Grade-C-Default</PoleTopBracket>
      <UpsetBolt>NESC-Grade-C-Default</UpsetBolt>
      <EyeBolt>NESC-Grade-C-Default</EyeBolt>
      <Insulator>NESC-Grade-C-Default</Insulator>
      <PinInsulator Reduction="0.4">NESC-Grade-C-Default</PinInsulator>
      <PostInsulator Reduction="0.4">NESC-Grade-C-Default</PostInsulator>
      <SpoolInsulator Reduction="0.5">NESC-Grade-C-Default</SpoolInsulator>
      <SuspensionInsulator Reduction="0.5">NESC-Grade-C-Default</SuspensionInsulator>
    </Ruleset>
    <Ruleset Name="NESC Grade C - 250D">
      <Pole DeadEndReduction="1">No-Load-Factors</Pole>
      <Guy DeadEndReduction="1">No-Load-Factors</Guy>
      <Anchor DeadEndReduction="1">No-Load-Factors</Anchor>
      <Crossarm DeadEndReduction="0.8">No-Load-Factors</Crossarm>
      <BracedBracket DeadEndReduction="0.8">No-Load-Factors</BracedBracket>
      <StandoffBracket DeadEndReduction="0.8">No-Load-Factors</StandoffBracket>
      <PoleTopBracket DeadEndReduction="0.8">No-Load-Factors</PoleTopBracket>
      <UpsetBolt DeadEndReduction="0.8">No-Load-Factors</UpsetBolt>
      <EyeBolt DeadEndReduction="0.8">No-Load-Factors</EyeBolt>
      <Insulator DeadEndReduction="0.8">No-Load-Factors</Insulator>
      <PinInsulator DeadEndReduction="0.8">No-Load-Factors</PinInsulator>
      <PostInsulator DeadEndReduction="0.8">No-Load-Factors</PostInsulator>
      <SpoolInsulator DeadEndReduction="0.8">No-Load-Factors</SpoolInsulator>
      <SuspensionInsulator DeadEndReduction="0.8">No-Load-Factors</SuspensionInsulator>
    </Ruleset>
  </RuleSets>
  <ConstructionGrades>
    <ConstructionGrade Name="NESC B" Default="NESC Grade B - 250B">
      <Pair>
        <Standard>NESC - Extreme Ice with Wind</Standard>
        <RuleSet>NESC Grade C - 250D</RuleSet>
      </Pair>
    </ConstructionGrade>
    <ConstructionGrade Name="NESC C" Default="NESC Grade C - 250B" />
  </ConstructionGrades>
  <IceDensityPoundsPerFoot>57</IceDensityPoundsPerFoot>
</StandardsAndConstructionGrades>
 

 

 

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