pof_future_serviceline {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)