pof_future_serviceline: Future Probability of Failure for Service Line

In CNAIM: Common Network Asset Indices Methodology (CNAIM)

Future Probability of Failure for Service Line

Description

This function calculates the future annual probability of failure per kilometer for a service line 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_serviceline(
  utilisation_pct = "Default",
  operating_voltage_pct = "Default",
  sheath_test = "Default",
  partial_discharge = "Default",
  fault_hist = "Default",
  reliability_factor = "Default",
  age,
  k_value = 0.0329,
  c_value = 1.087,
  normal_expected_life = 75,
  simulation_end_year = 100
)

Arguments

utilisation_pct	Numeric Utilisation Percentage
operating_voltage_pct	Numeric Operating Voltage Percentage
sheath_test	String Sheath Test
partial_discharge	String Partial Discharge
fault_hist	String Fault Histogram
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).
age	Numeric. The current age in years of the conductor.
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 service line, 50 years old
pof_future_serviceline(
utilisation_pct = 80,
operating_voltage_pct = 60,
sheath_test = "Default",
partial_discharge = "Default",
fault_hist = "Default",
reliability_factor = "Default",
age = 50,
k_value = 0.0329,
c_value = 1.087,
normal_expected_life = 75,
simulation_end_year = 100)

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