The Handbook
The Sygma way,in eleven sections.
The A5 booklet printed for courses, as a web book: 3,758 words and 64 figures from the printed pages, read in 11 sections rather than 33 separate chapters. Every section keeps its printed page numbers, and points at the footage that shows it being done.
The knowledgehalf.
What Is Buried, and What It Does to You
Introduction · The Dangers · Electricity · Gas Pipes · Water Pipes and Sewers · Other Pipelines · Telecommunication Cables
Duties, and Planning the Work
Safe Systems of Work · Your Duties as a Client · Your Duties as a Designer · Planning the Work · Purpose of Permit to Work · Purpose of a Site-Specific Risk Assessment
Getting the Information, and What Plans Will Not Tell You
Obtaining Information on Services · Use and Limitations of Plans
The practicalhalf.
Before You Switch On
Visual Check & Utility (STATs) Plans · Utility Plans · Pre-use Genny and CAT Checks
StrikeAlert, and the Function Check
StrikeAlert · Function Check
Direct Connection, and Street Lighting
Direct Connection Using the Genny · Locating Street Lighting Cables
Locating LV Mains and Services
Following the low voltage network from the main into the properties it feeds.
The Signal Clamp
Applying a signal without opening anything, and the two conditions that decide whether it works.
Induction, Blind Sweeps and Nulling
Induction · Blind Induction Sweep · Induction Signal Nulling
Passive Modes, and Locating Technique
Passive Modes · Locating Techniques
Depth
Taking a depth reading, what it is measuring, and every reason it can be telling you the wrong thing.