Knowledge Hub
Practical Knowledge for Underground Utility Professionals
Guides, explainers, and technical resources on utility location, avoidance, and mapping. Written by Sygma's specialist trainers.
Sygma publishes technical guides, industry explainers, case studies, and training insights for teams working around buried utilities. Every article is written or reviewed by our specialist trainers and draws on two decades of field delivery across the UK.
4 Behaviours That Can Cause Cable Strikes on Site
Most cable strikes trace back to the same four failure patterns in the pre-excavation survey. Understanding them is the first step to preventing them.
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Why You Should Always Connect the Genny First
Passive detection alone is not enough. Sygma's Genny-First methodology and why it produces measurable improvements in site safety.
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CAT & Genny Training: The Genny First Approach Explained
Watch our training video on why the standard Power, Radio, Genny sequence is the wrong way round — and what the manufacturer manuals have been saying all along.
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OSCA: The Case for On-Site Assessment
A three-year certificate confirms an operative passed a course. It does not confirm what they are doing on site today. How OSCA fills that gap.
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EUSR CAT1 vs ProQual CAT1: Which One Does Your Operative Need?
These are not equivalent qualifications. This guide explains why ProQual CAT1 is a significantly more thorough assessment and helps you choose the right one for your team.
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CITB Funding for Utility Training: The 2026 Position
How the CITB Employer Network model works, what it means for your training budget, and how Sygma can help you access it.
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Understanding PAS 128: A Guide for Contractors and Clients
What PAS 128 covers, what the different survey types require, and why operatives working on PAS 128 projects need specific training.
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HSG47 Explained: What It Requires and Who It Applies To
HSG47 is the principal guidance document for avoiding danger from underground services. This guide explains the key requirements and how Sygma's training maps to them.
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When Does Your Organisation Need a Bespoke Training Programme?
Standard courses solve generic problems. Bespoke programmes solve specific ones. This piece explains how to tell the difference and when to invest in a bespoke approach.
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How to Renew Your EUSR Card
Your EUSR card has expired or is about to expire. This guide explains the EUSR card renewal process, what happens if your card lapses, and how to rebook your training.
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NPORS vs EUSR Cable Avoidance: Which Qualification Do You Need?
NPORS and EUSR both offer cable avoidance qualifications but they serve different purposes. This guide explains the differences, who accepts each one, and how to choose.
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Utility Strike Prevention: A Guide for Site Managers
Most utility strikes are preventable. Practical guidance on pre-dig procedures, training requirements, supervision, and building a culture that prioritises doing it right.
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Kier Group: Bespoke Utility Avoidance Refresher
How Sygma built a 1-day refresher programme around Kier's own systems, policies, and incident data.
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Morgan Sindall: PAS128 Leadership Briefings
How Sygma designed PAS128 utility survey training at the leadership level for Morgan Sindall's project managers.
Read moreQTS Group: Rail-Specific CAT4 and Surface Laid Cables
How Sygma designed a rail-specific programme incorporating QTS's own toolbox talk and ZSI Super User training.
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Severn Trent Water: 2-Day Bespoke Manager Training
How Sygma designed a management training programme built around Severn Trent's own policies and procedures.
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