CNAIM (version 2.1.4)

pof_future_ohl_cond_50kv: 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
)

Value

DataFrame. Future probability of failure along with future health score

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.

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)