pof_tower_ohl_support_50kv: Current Probability of Failure for Towers OHL support 50kV

In CNAIM: Common Network Asset Indices Methodology (CNAIM)

Current Probability of Failure for Towers OHL support 50kV

Description

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

Usage

pof_tower_ohl_support_50kv(
  foundation_type = "Foundation - Fully Encased Concrete",
  paint_type = "Paint System - Paint",
  placement = "Default",
  number_of_operations = "Default",
  altitude_m = "Default",
  distance_from_coast_km = "Default",
  corrosion_category_index = "Default",
  age,
  observed_condition_inputs_steelwork,
  observed_condition_inputs_paint,
  observed_condition_inputs_foundation,
  reliability_factor = "Default",
  k_value = 0.0545,
  c_value = 1.087,
  normal_expected_life = "Default"
)

Arguments

foundation_type	String. Foundation type of the tower foundation_type = c("Foundation - Fully Encased Concrete", "Foundation - Earth Grillage")
paint_type	String. Paint type of the tower foundation_type = c(Paint System - Galvanising, Paint System - Paint )
placement	String. Specify if the asset is located outdoor or indoor.
number_of_operations	Numeric Number of operations for the tower
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. 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. 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.
age	Numeric. The current age in years of the conductor.
observed_condition_inputs_steelwork	Named list observed_conditions_input
observed_condition_inputs_paint	Named list observed_conditions_input
observed_condition_inputs_foundation	Named list observed_conditions_input conductor_samp = c("Low","Medium/Normal","High","Default").
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 = 0.0545 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 = "Default" by default. The default value is accordingly to the CNAIM standard on page 107.

Value

DataFrame Current probability of failure per annum per kilometer along with current health score.

Examples

# Current annual probability of failure for Towers
pof_tower_ohl_support_50kv(
number_of_operations = "Default",
placement = "Default",
altitude_m = "Default",
distance_from_coast_km = "Default",
corrosion_category_index = "Default",
age = 10,
paint_type = "Paint System - Galvanising",
foundation_type = "Foundation - Earth Grillage",
observed_condition_inputs_steelwork =
list("tower_legs" = list("Condition Criteria: Observed Condition" = "Default"),
"tower_bracings" = list("Condition Criteria: Observed Condition" = "Default"),
"tower_crossarms" = list("Condition Criteria: Observed Condition" = "Default"),
"tower_peak" = list("Condition Criteria: Observed Condition" = "Default")),
observed_condition_inputs_paint =
list("paintwork_cond" = list("Condition Criteria: Observed Condition" = "Default")),
observed_condition_inputs_foundation =
list("foundation_cond" = list("Condition Criteria: Observed Condition" = "Default")),
reliability_factor = "Default",
k_value = 0.0545,
c_value = 1.087,
normal_expected_life = "Default")

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