e_cof_tf {CNAIM} R Documentation

## Environmental Consequences of Failure for transformers

### Description

This function calculates environmental consequences of failure for all type of transformers. (cf. section 7.5, page 80, CNAIM, 2017). Environmental consequences of failure is used in the derivation of consequences of failure see `cof`().

### Usage

```e_cof_tf(
asset_type_tf,
rated_capacity = "Default",
prox_water = "Default",
bunded = "Default"
)
```

### Arguments

 `asset_type_tf` String. Transformer types. Options: ```asset_type_tf = c("6.6/11kV Transformer (GM)", "20kV Transformer (GM)", "33kV Transformer (GM)", "66kV Transformer (GM)", "132kV Transformer (GM)")```. `rated_capacity` Numeric. The rated capacity for a transformer. For type `"6.6/11kV Transformer (GM)"` and `"20kV Transformer (GM)"` use kVA ratings. For ```"20kV Transformer (GM)", "33kV Transformer (GM)", "66kV Transformer (GM)", "132kV Transformer (GM)"``` use MVA ratings. A setting of `"Default"` will result in a size environmental factor of 1 (cf. table 222, page 171, CNAIM, 2017). `prox_water` Numeric. Specify the proximity to a water course in meters. A setting of `"Default"` will result in a proximity factor of 1. Thus assume the proximity to a water course is between 80m and 120m (cf. table 223, page 172, CNAIM, 2017). `bunded` String. Options: `bunded = c("Yes", "No", "Default")`. A setting of `"Default"` will result in a bunding factor of 1.

### Value

Numeric. Financial cost of failure for a 10kV transformer.

### 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

```# Environmental consequences of failure for a 6.6/11 kV transformer
e_cof_tf(asset_type_tf = "6.6/11kV Transformer (GM)",
rated_capacity = 750, prox_water = 100, bunded = "Yes")
```

[Package CNAIM version 1.0.1 Index]