Free guide
Electrical Testing: Quick Revision Guide
Free PDF · 4 pages · 830 KB
- The testing sequence and what each test checks
- Zs worked through, step by step
- Key formulas and revision reminders
Visual explainers for the trades
Trade knowledge. Made simple.
Short, visual explainers that make technical subjects easy to understand. One idea at a time, drawn the way the job actually looks.
Free PDF Electrical Testing: Quick Revision Guide- 12 free explainers
- ~1 min each
- Electrical first
Collection 01
Electrical
Testing, theory and regs for UK electricians and apprentices. Useful for 2391, AM2 and Level 2 & 3.
The approach
Drawn, not described.
Most trade theory comes as walls of text and tables. Site Science draws it instead.
Show the whole path
Every explanation is drawn, not described. You see where the current goes, not just what it's called.
Real colours, real kit
Brown is line, blue is neutral, green and yellow is earth. The diagrams look like the job, so they stick.
Only the numbers that matter
The figures you'll actually be asked about, on one clean scale, with nothing else competing for your attention.
Revision guides
Start with the free guide.
Four pages built from the explainers: the testing sequence, Zs worked through, and the formulas you get asked about. A full guide is on the way.
Coming soon
Electrical Testing Made Simple
Visual revision guide · PDF · £4.99
- Every test explained in full, like the Zs page
- More diagrams, worked examples and revision questions
- BS 7671 and GN3 references
Not on sale yet. Or follow on TikTok for the launch.
About
Clear explanations for practical people.
Site Science makes technical trade knowledge easier to understand. Each explainer takes one subject, strips it back to what matters, and draws it step by step, so it makes sense the first time and stays with you on the job.
Electrical is the first collection, built for apprentices, electricians and anyone revising for 2391, AM2 or Level 2 & 3. More trades will follow.