# Field Guides

> Pictorial guides for electric transmission utility field personnel on asset conditions. (iPhone/iPad app by Electric Power Research Institute.)

- Source: https://appshunter.io/ios/app/field-guides/id1215353929 (this page in markdown: same URL + `.md`)
- Developer: [Electric Power Research Institute](https://appshunter.io/developer/489519295)
- Category: Reference, Utilities
- Price: Free
- Rating: 4.80/5 from 4 App Store ratings
- Age rating: 4+
- Requires: iOS 10.0 · 32 MB
- Languages: American English
- Released: 2017-04-27
- Data updated: 2026-06-10
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/field-guides/id1215353929/reviews.md

## What is Field Guides?

This app provides electric transmission utility field personnel a range of pictorial guides showing different conditions that may occur on transmission assets while in-service.  The guides provide the reason for the degradation, potential associated failure modes and what potential actions may need to be considered.  Guides are provided for different types of transmission assets, e.g. insulators, steel poles, etc.,  as well as for different types of inspection technology, e.g. infrared inspection, daytime corona inspection.

## Key features

- Pictorial guides for transmission assets
- Identification of asset conditions
- Explanation of degradation reasons
- Details on potential failure modes
- Guidance on potential actions
- Supports various asset types
- Includes different inspection technologies


## Frequently asked questions about Field Guides

### What types of transmission assets does Field Guides cover?

Field Guides covers various types of transmission assets, including insulators and steel poles, providing specific pictorial guides for each.

### What information does Field Guides provide about asset conditions?

Field Guides provides the reason for degradation, potential associated failure modes, and what potential actions may need to be considered for the identified conditions.

### Does Field Guides support different inspection technologies?

Yes, Field Guides includes guides for different types of inspection technology, such as infrared inspection and daytime corona inspection.

### What is the age rating for Field Guides?

Field Guides has an age rating of 4+, making it suitable for a wide range of users.

### On which devices can Field Guides be used?

Field Guides is available on iPhone, iPad, and iPod devices.

### How often is Field Guides updated?

The latest version of Field Guides was released on December 22, 2019, indicating its last update was in late 2019.

### What is the user sentiment for Field Guides?

Users seem to have a very positive experience with Field Guides, as indicated by its high rating of 4.8 stars.

### Does Field Guides contain advertisements?

No, Field Guides is ad-free, providing an uninterrupted experience for users.

## Version history (last 5 releases)

### 4.0.0 — 2019-12-22

This version adds additional Field Guides and allows users to download guides, and to delete guides from their devices.

### 3.0.1 — 2018-09-26

Minor content update.

### 3.0 — 2018-09-19

Content update and minor feature update.

### 2.0 — 2017-09-08

This version adds additional Field Guides and allows users to download guides, and to delete guides from their devices.

### 1.0 — 2017-04-26

No release notes.

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-06-10.*