Our network has changed, but our training hasn't.
The UK’s aging PME (TN-C-S) infrastructure combines neutral and earth conductors, creating diverted neutral current paths that pose hidden dangers electricians aren’t being taught to identify.
What is PME?
PME (Protective Multiple Earthing) uses the combined neutral-earth conductor from the DNO. When this system develops faults or poor connections, neutral current diverts through earth conductors, pipework and building structures – creating shock hazards even on “isolated” systems.
Why Aren't We Taught This?
Traditional training assumes balanced current flow and effective isolation. But the reality on-site is different: diverted currents are everywhere, and standard isolation procedures don’t detect them. This campaign fills that critical knowledge gap.
THE GOLDEN RULE
Always use a Clamp Meter before disconnecting
This single practice can save your life. Before disconnecting any main earthing conductor, neutral, or bonding conductor, use a clamp meter to check for current flow. If current is present, the system is NOT safe to work on.
Why it matters: Voltage indicators and isolation devices won’t detect diverted neutral currents. Only a clamp meter reveals current flowing on paths it shouldn’t be—your first and best defense against electric shock.
You can’t teach this safely on a rig. That’s where TradeFox comes in.
Traditional training methods are fundamentally incapable of teaching this vital skill safely, making simulation not just a “nice to have,” but an absolute necessity.
The Classroom Dilemma
You cannot safely push a 10A diverted neutral current through a classroom training rig without risking student lives.
Physical training equipment simply cannot replicate the lethal conditions students will face on real PME networks—but those networks won’t wait for them to learn.
The TradeFox solution
TradeFox is the only risk-free way to build the muscle memory required to survive a PEN fault on modern UK networks.
Why it matters: Practice detecting lethal faults. Experience the consequences of failed isolation. All without the real-world hospital visit.
Who needs to know this?
The Classroom Dilemma
Learn what the textbooks leave out. Understand the real-world hazards you’ll face on-site that traditional training doesn’t cover.
Working Electricians
Educators & Trainers
Are you a College or Training Provider?
Upgrade your Safe Isolation curriculum today with simulation-based training that protects student lives while teaching real-world hazard detection.
Real stories from the field.
These hazards aren’t theoretical; they’re happening every day on job sites across the UK.
Understanding the hidden hazard.
Diverted neutral currents pose a serious but often overlooked electrical safety hazard. Our educational campaign aims to raise awareness and provide comprehensive knowledge about this critical issue.
THE SOLUTION
TradeFox Simulation Training
Traditional classroom rigs cannot safely replicate a lethal 10A diverted neutral fault. Attempting to do so puts students at risk. TradeFox is the only risk-free way to build the muscle memory required to survive a PEN fault on modern UK networks.
Raising awareness through simulation training.
Through accessible learning materials, expert resources, and community engagement, we’re empowering individuals, electricians, and organizations to recognize, prevent, and address neutral current problems in electrical systems.
Interactive Scenarios
Practice complex detection and isolation procedures in a 100% safe, virtual environment.
Real-World Consequences
Experience what happens when standard isolation fails, without the real-world hospital visit.
Built for Modern Curriculums
Seamlessly integrates into college and contractor safety training programs.
For colleges & training providers
Future-proof your curriculum. Don’t send students onto PME networks blind. Book a TradeFox integration demo and modernize your Safe Isolation training today.
For Electrical Contractors
THE CRITICAL PROTOCOL
What to do when you find a diverted neutral current.
1
Measure the Current
Use your clamp meter to record the exact current value flowing on the earth conductor, bonding, or structural element.
2
Assess the Severity
Industry guidance suggests the 10A threshold—currents above this level indicate a serious fault requiring immediate DNO notification.
The DNO’s “Safe” Threshold vs. Reality:
The DNO notification threshold is 10A (10,000mA). But it only takes >15mA across the chest to cause a lethal shock. The industry’s “acceptable limit” is over 600 times the lethal dose. If your clamp meter reads unexpected current, breaking that connection could force a lethal voltage through your body.
3
Report to the DNO
Contact your local Distribution Network Operator to report the diverted current. Provide measurements, location details, and any relevant installation information. The DNO is responsible for investigating and rectifying network-side faults.
4
Document Everything
Record your findings, measurements, DNO communication, and any remedial actions taken. Use our Registry to track and share anonymized data with the industry.
Get involved. Give back.
Want to contribute to our educational campaign? We’d love to hear from you.