📄 Digital book in PDF · read it on your phone or print it
Safe isolation, continuity, ring final circuits, insulation resistance, polarity, Ze and Zs, RCDs and the schedule of test results. Each topic has its own page: the drawing first, then what you need to remember. 64 illustrated pages.
🔒 Secure checkout · PDF by email · 30-day guarantee
Each page has one big drawing and a box with the readings and steps you need to know:








Swipe to see more →
These are real pages from the book. The table of contents is the full one: 9 parts and 60 topics.
You're at the board with a ring final circuit, line and neutral cross-connected, going from socket to socket with the meter. One socket reads higher than the rest, and you're not sure what it's telling you.
You've looked it up before. The manual gives it to you in paragraphs: end-to-end readings, cross-connections, expected values, all in one long block. Nothing on the page shows you the ring itself.

In this book, ring step 2 is one page. The ring is drawn as a loop, line and neutral crossed at the board, and every socket should read about (r1 + rn) ÷ 4. A high reading is marked for what it usually is: a spur or a loose termination.
The other tests are laid out the same way: safe isolation, insulation resistance, the earth fault loop, the 0.8 rule and RCD testing, each on its own page.
You look at the page once, you see why that socket reads high, and you finish the ring without going back to the manual.

Nine parts, from getting ready to test through inspection, continuity, insulation resistance, polarity and earth, loop impedance, RCDs and certificates, to practice and review: 64 pages, all illustrated
Think of it this way:
You've finished a rewire. The board is in, the circuits are dead and it's time to test. Which test goes first, and what reading are you looking for?
You open the page with the full sequence and the eight steps are drawn in order: dead tests first, live tests last, with the key values beside each step.

The same goes for continuity, insulation resistance, Zs, RCDs and the schedule of test results: each one on its own page, drawn the same way.
Electrical Certification Illustrated is 9 parts and 60 topics, all drawn, and at the end two worked examples, a course review checklist and a quick-reference card for the van.
What you see drawn, you don't have to memorize.
The fixed route you'll use on every job: dead tests before live tests, safe isolation in six steps, instruments and calibration, earthing systems in Ireland and the symbols on the schedule, so you always know where you are.
The order to walk the visual inspection, the consumer unit, cables and colours, main bonding, bathroom zones, RCD coverage and labels.
What continuity proves, nulling the leads, R1+R2, the long-lead method, the three steps of the ring final circuit and bonding conductors.
What the insulation test shows, test voltages and minimum values, preparing the circuit, low readings and how to record them.
Dead polarity, switches and lampholders, earth electrode resistance, Ze at the origin and live polarity.
The earth fault loop drawn end to end, Zs = Ze + (R1+R2), the furthest point, disconnection times, fault current and the 0.8 rule worked with numbers, so you know whether a reading passes before you write it down.
RCD types, the test at rated current, the fast test at 5×IΔn, the half-rated check, the test button and switchgear checks.
Which document for which job, the schedule column by column, supply details, the declaration, periodic inspection, defects and records.
The full sequence on one page, a three-bed house, a small three-phase shop, the most frequent mistakes, a review checklist and a card for the van.
At the end of the book: Two worked examples, a course review checklist and a quick-reference card for the van.

Practise every test the way it is asked on the course: readings, decisions and certificate entries, with the answer explained under each question.

The most common testing and paperwork errors side by side with the right way, so you can check your own certificates in a glance.
📄 This is a digital PDF book sent to your email: nothing is printed or shipped.
PDF by email: We email you Electrical Certification Illustrated as a PDF, together with the two free books. It's a single payment: no installments, no extra charges.
Every test from the course on its own page, in the same order you'll use on site. You revise in the evening and it stays.
The sequence, the readings and the schedule columns at a glance, so you can explain each result without stopping to think.
A printed reference for the van: the order of the tests, the key values and how each one goes on the certificate.
📄 This is a digital PDF book sent to your email: nothing is printed or shipped.
Try Electrical Certification Illustrated for 30 days, bonus books included.
We refund everything if the file won't open, if the book isn't what you see here, if you were charged twice or if the email doesn't arrive. Just email us.
You pay once. No subscriptions.
Yes. It doesn't teach you the trade: it puts inspection, testing and certification in one fixed order, with the readings and the paperwork drawn page by page.
It's written for Ireland. It's checked against the current edition of I.S. 10101 and the current CRU certification requirements: Irish earthing arrangements (TN-C-S from the network and TT with an earth electrode), the certificates and the schedule of test results used here. It isn't a BS 7671 book relabelled. The drawings, methods and worked examples are our own; no text or tables from the standard are reproduced.
No. It's an independent study book. It isn't published, approved or endorsed by NSAI, the CRU, Safe Electric or any course provider.
No. It's a study and revision aid. It doesn't give you a certificate, a qualification or a registration, and it doesn't replace the Qualified Certifier course, the training or the registration you need to certify installations.
No. All the questions are written for this book to practise the same topics. They aren't official questions from any course or assessment.
The book and the 2 gift books arrive as a PDF by email.
No. It's a single payment, with no subscription.
Yes. The PDF is made to print: at home, in a print shop, or just the pages you want for the van.
You have 30 days. We refund everything if the file won't open, if the book isn't what you see on this page, if you were charged twice or if the email doesn't arrive: just email us.
No more rereading the standard and keeping nothing.
Ring circuits, Zs and RCD tests: you see them drawn and that's it.
You get to the course or the job knowing where everything is.
Drawings make studying faster.
The book is right below.
One-time payment: US$ 27 · Guarantee: 30 days · PDF by email
YES, I WANT ELECTRICAL CERTIFICATION ILLUSTRATED FOR US$ 27📄 This is a digital PDF book sent to your email: nothing is printed or shipped.