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Theory, Techniques, Tips, & Tricks for Utility Line Tracing Pollardwater Gene Dahle

Theory, Techniques, Tips, & Tricks for Utility Line Tracing · Theory, Techniques, Tips, & Tricks for Utility Line Tracing ... Get Set ….. Cell phones ... –Induction Balanced

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Theory, Techniques, Tips, &

Tricks for Utility Line Tracing

Pollardwater

Gene Dahle

On Your Mark, Get Set…..

Cell phones Off or to Silent

Ask questions, but I may not answer

them right away. Sorry about that.

If I am getting boring, B’fast starting

to get to you, up late last

night….Stand up and stretch.

Presentation Overview

History of Underground Locating

Types of Locators

Terms We Deal With

What Is Happening Out There

Tips

Tricks

Care and Feeding of Your Equipment

History of Locating

Dr Gerhard Fisher

– Army Air Corp

– Einstein

Ring Ring!!

- Pres Garfield

Manufacturers

Fisher Research Laboratory

Vivax-Metrotech

Goldak

Radiodetection

Subsite

Fuji

Schonstedt

Types of Locators

Metal Detectors

Ferro Probes

Line Tracers

Others

Metal Detectors

Pancake Style

How they work….

– Induction Balanced System

Hobby vs Utility

Do’s and Do not Do’s

Metal Detectors

Ferro Probes

Stick Locators

How they work…

Stick vs Pancake

Ferro Probes

Line Tracers

How they work….

2 Box/Split Box

Single frequency

Multi-Frequency

Non-metallic (later on that subject)

So Let’s Get Started

Line Tracing – in the Simplest Terms

–What are we trying to do???

Back to Basic Electricity

Build a Better Circuit

What??

Time to turn on the Lightbulb!

Building Our Circuit

– Think of a Light Bulb

Transmitter - Battery

Connection to Utility - Positive Lead

Ground Stake - Negative Lead

Heavy Metals

Good Conductors

– Copper

– Jacketed Wire

Bad Conductors

– Ductile/Cast Iron

– Rusted Pipe

What about Frequency?

Definition

Metal Relationship

Multi (all at once?)

Frequency to Metal Relationship

Good Conductors

– High or Low

Bad Conductors

– High (and why)

How do we choose?? And why.

Terms of the Trade

Passive

Active

Conductive

Inductive

Inductive Clamp

Can We Start YET???

Equipment Setup

– Inductive (and we light the world)

– Conductive

– Inductive Clamp

Grounding

Principles

– (Remember the Light Bulb)

– Transmitter Positioning

– Put the Metal (in) to the Dirt

– Anything else??? Of course there is…

What is My Locator Saying to Me

Faceplate

– Power

– Signal Strength

– Left/Right/Over Target

– Battery Level

– Frequency

– Direct Direction

– Gain

All Lines Are Straight, Aren’t They?

Start

T’s and Elbows

Depth Changes

Never the Easy Trace

Bleed Over

– Pebble in the Pond

Interference from Other Utilities

Power Settings (Back to the Trans)

How Accurate is Depth???

What is the purpose of Depth?

If it ain’t so, how can it help me?

Thin Line – Long Trace….

Big Pipe – Shorter Trace

Triangulation

Other Accessories

- Coupling Clamp

- Sonde

- A Frame (Fault Locator)

- Long Insulated Wire

- Magnet

- Jumpers and Extra Stakes

Non-Metallic and So Much of It

It is out there, so we have to deal

with it.

How to trace it – sort of.

Sound

What Else is Out There…

Ground Penetrating Radar

Marker Balls

Dousing/Witching

And the Shovel….

Care and Feeding

Built like a PC, used as a Shovel

- Test Field

- Heat and Cold

- Moisture

- Batteries

Questions…..

Your turn……