pof_future_ohl_cond_132_66_33kv {CNAIM} R Documentation

## Future Probability of Failure for 33-132kV OHL Conductors

### Description

This function calculates the future annual probability of failure per kilometer 3-132kV OHL conductors. The function is a cubic curve that is based on the first three terms of the Taylor series for an exponential function. For more information about the probability of failure function see section 6 on page 30 in CNAIM (2017).

### Usage

```pof_future_ohl_cond_132_66_33kv(
ohl_conductor = "66kV OHL (Tower Line) Conductor",
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",
simulation_end_year = 100
)
```

### Arguments

 `ohl_conductor` String. A sting that refers to the specific asset category. See See page 15, table 1 in CNAIM (2017). Options: ```ohl_conductor = c("33kV OHL (Tower Line) Conductor", "66kV OHL (Tower Line) Conductor", "132kV OHL (Tower Line) Conductor")```. The default setting is `ohl_conductor = "66kV OHL (Tower Line) Conductor"`. `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 103, table 20 in CNAIM (2017). `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 107-108, table 25A in CNAIM (2017) 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 107, table 23 in CNAIM (2017). 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 106, table 22 in CNAIM (2017). 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 107, table 24 in CNAIM (2017). 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 146-147, table 192 and 194 in CNAIM (2017). `corr_mon_survey` String. Corrosion monitoring survey. Options: `corr_mon_survey = c("Low","Medium/Normal","High","Default")`. See page 146-147, table 193 and 195 in CNAIM (2017). `visual_cond` String. Visual condition. Options: ```visual_cond = c("As New","Normal Wear","Some Deterioration", "Substantial Deterioration", "Default")```. See page 131-132, table 127 and 129 in CNAIM (2017). `midspan_joints` Integer. Number of midspan joints on the conductor. A span includes all conductors in that span. See page 131-132, table 128 and 130 in CNAIM (2017). `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 69 in CNAIM (2017). `simulation_end_year` Numeric. The last year of simulating probability of failure. Default is 100.

### Value

Numeric. Current probability of failure per annum per kilometer.

### Source

DNO Common Network Asset Indices Methodology (CNAIM), Health & Criticality - Version 1.1, 2017: https://www.ofgem.gov.uk/system/files/docs/2017/05/dno_common_network_asset_indices_methodology_v1.1.pdf

### Examples

```# Future annual probability of failure for 66kV OHL (Tower Line) Conductor
pof_future_ohl_cond_132_66_33kv(
ohl_conductor = "66kV OHL (Tower Line) Conductor",
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",
simulation_end_year = 100)
```

[Package CNAIM version 1.0.1 Index]