pof_future_ohl_cond_50kv: Future Probability of Failure for 50kV OHL Conductors

In CNAIM: Common Network Asset Indices Methodology (CNAIM)

Future Probability of Failure for 50kV OHL Conductors

Description

This function calculates the future annual probability of failure per kilometer 50kV OHL conductors. The function is a cubic curve that is based on the first three terms of the Taylor series for an exponential function.

Usage

pof_future_ohl_cond_50kv(
  sub_division = "Cu",
  placement = "Default",
  altitude_m = "Default",
  distance_from_coast_km = "Default",
  corrosion_category_index = "Default",
  age,
  conductor_samp = "Default",
  corr_mon_survey = "Default",
  visual_cond = "Default",
  midspan_joints = "Default",
  reliability_factor = "Default",
  k_value = 0.008,
  c_value = 1.087,
  normal_expected_life = "Default",
  simulation_end_year = 100
)

Arguments

sub_division	String. Refers to material the conductor is made of. Options: sub_division = c("ACSR - greased", "ACSR - non-greased", "AAAC", "Cad Cu", "Cu", "Other") . See page 107, table 20 in CNAIM (2021).
placement	String. Specify if the asset is located outdoor or indoor. A setting of "Outdoor" means the asset is located in an outside environment, and a setting of "Indoor" means the asset is located in an indoor environment. A setting of "Default" will result in either an indoor or an outdoor environment setting that depends on the specification of asset_type. See page 110-113, table 26 in CNAIM (2021) for default environments.
altitude_m	Numeric. Specify the altitude location for the asset measured in meters from sea level.altitude_m is used to derive the altitude factor. See page 111, table 23 in CNAIM (2021). A setting of "Default" will set the altitude factor to 1 independent of asset_type.
distance_from_coast_km	Numeric. Specify the distance from the coast measured in kilometers. distance_from_coast_km is used to derive the distance from coast factor See page 110, table 22 in CNAIM (2021). A setting of "Default" will set the distance from coast factor to 1 independent of asset_type.
corrosion_category_index	Integer. Specify the corrosion index category, 1-5. corrosion_category_index is used to derive the corrosion category factor. See page 111, table 24 in CNAIM (2021). A setting of "Default" will set the corrosion category factor to 1 independent of asset_type.
age	Numeric. The current age in years of the conductor.
conductor_samp	String. Conductor sampling. Options: conductor_samp = c("Low","Medium/Normal","High","Default"). See page 161, table 199 and 201 in CNAIM (2021).
corr_mon_survey	String. Corrosion monitoring survey. Options: corr_mon_survey = c("Low","Medium/Normal","High","Default"). See page 161, table 200 and 202 in CNAIM (2021).
visual_cond	String. Visual condition. Options: visual_cond = c("No deterioration","Superficial/minor deterioration","Some Deterioration", "Substantial Deterioration", "Default"). See page 146, table 140 and 142 in CNAIM (2021).
midspan_joints	Integer. Number of midspan joints on the conductor. A span includes all conductors in that span. See page 146, table 141 and 143 in CNAIM (2021).
reliability_factor	Numeric. reliability_factor shall have a value between 0.6 and 1.5. A setting of "Default" sets the reliability_factor to 1. See section 6.14 on page 73 in CNAIM (2021).
k_value	Numeric. k_value = 0.0069 by default. This number is given in a percentage. The default value is accordingly to the CNAIM standard on p. 110.
c_value	Numeric. c_value = 1.087 by default. The default value is accordingly to the CNAIM standard see page 110
normal_expected_life	Numeric. normal_expected_life = 60 by default. The default value is accordingly to the CNAIM standard on page 107.
simulation_end_year	Numeric. The last year of simulating probability of failure. Default is 100.

Value

DataFrame. Future probability of failure along with future health score

Examples

# Future annual probability of failure for 50kV OHL (Tower Line) Conductor
pof_future_ohl_cond_50kv(
sub_division = "Cu",
placement = "Default",
altitude_m = "Default",
distance_from_coast_km = "Default",
corrosion_category_index = "Default",
age = 10,
conductor_samp = "Default",
corr_mon_survey = "Default",
visual_cond = "Default",
midspan_joints = "Default",
reliability_factor = "Default",
k_value = 0.0080,
c_value = 1.087,
normal_expected_life = "Default",
simulation_end_year = 100)

CNAIM documentation built on Aug. 31, 2022, 9:13 a.m.