: Active locating uses a transmitter to follow a specific route, while passive locating detects existing fields from live power lines. 3. Documentation and Marking
: Before the locator arrives, the excavator should "white line" or pre-mark the planned work area with white paint or flags. This helps locators focus on the exact site, speeding up the process. locating
A standard write-up for a locating activity typically includes several critical components: 1. Pre-Excavation Steps : Active locating uses a transmitter to follow
: This is the most common method. It involves a transmitter that sends a frequency down a conductive line and a receiver that detects the signal above ground. This helps locators focus on the exact site,
: You must contact your local 811 center (the "call before you dig" service). In many states, locators are required to arrive on-site within 48 hours of the request. 2. The Locating Process Locators use specialized equipment to find buried lines:
A formal locate report or write-up should document the findings with: Utility Locating- The 70% Rule