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Inspection, Testing and Certification to I.S. 10101 in Drawings One Test on Every Page

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.

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Every topic, its own pageEvery test drawn, with the explanation beside it
64 illustrated pages9 parts, from safe isolation to the quick-reference card for the van
Up-to-date sourcesI.S. 10101 (NSAI) and current CRU certification requirements
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Look Inside the Book

Each page has one big drawing and a box with the readings and steps you need to know:

Six steps: identify, isolate, lock off and tag, prove, test L-N, L-E, N-E, re-prove.
Six steps: identify, isolate, lock off and tag, prove, test L-N, L-E, N-E, re-prove.
Bathrooms are Part 701: 30 mA RCD protection and supplementary bonding unless all conditions are met.
Bathrooms are Part 701: 30 mA RCD protection and supplementary bonding unless all conditions are met.
Long-lead method: reading minus lead resistance = R2 at that point
Long-lead method: reading minus lead resistance = R2 at that point
230 V circuits: 500 V DC, minimum 1 MΩ. SELV/PELV: 250 V DC, 0.5 MΩ.
230 V circuits: 500 V DC, minimum 1 MΩ. SELV/PELV: 250 V DC, 0.5 MΩ.
Transformer → line → fault → CPC → back to source: Zs is the whole loop.
Transformer → line → fault → CPC → back to source: Zs is the whole loop.
Compare measured Zs with 80 % of the maximum: 2.3 Ω becomes 1.84 Ω.
Compare measured Zs with 80 % of the maximum: 2.3 Ω becomes 1.84 Ω.
8 steps, dead tests first: 500 V · 1 MΩ, 300 ms and 40 ms, all on one printable page
8 steps, dead tests first: 500 V · 1 MΩ, 300 ms and 40 ms, all on one printable page
500 V · 1 MΩ, 0.4 s · 5 s, 300 ms · 40 ms, × 0.8 and (r1+r2)/4
500 V · 1 MΩ, 0.4 s · 5 s, 300 ms · 40 ms, × 0.8 and (r1+r2)/4

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These are real pages from the book. The table of contents is the full one: 9 parts and 60 topics.

The Problem Isn't You. It's How It Was Explained to You.

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.

Long-lead method: reading minus lead resistance = R2 at that point

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.

COMPARE FOR YOURSELF

The Same Topic, Two Ways to Study It

THIS
  • The manual: line after line
  • Bathroom zones and bonding explained only in words
  • You get to the job with doubts
When working in a room with a bath or shower, the installer first has to consider the zones around the bath or shower basin, which depend on the walls, the ceiling and a series of horizontal and vertical measurements, and then confirm that every circuit serving the room has additional protection by RCD, before deciding whether supplementary bonding is needed, which in turn depends on several conditions that all have to be checked one by one before moving on to choosing the equipment allowed in each zone.
FOR THIS
  • The bathroom zones in one drawing
  • The RCD and bonding rules in a box
  • Zones 0, 1 and 2 drawn around the bath, 30 mA beside them
Bathrooms are Part 701: 30 mA RCD protection and supplementary bonding unless all conditions are met.
CONTENTS

Take a Look at the 9 Parts and 60 Topics

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

IBefore You Test · pp. 5-11
  1. One Route, Every Time
  2. Dead Tests First, Live Tests Last
  3. Safe Isolation in Six Steps
  4. Your Instruments and Their Calibration
  5. Earthing Systems You Meet in Ireland
  6. The Symbols on the Schedule
  7. What You Need Before You Start
IIInspection · pp. 12-18
  1. Visual Inspection: The Order to Walk It
  2. The Consumer Unit Check
  3. Cables, Colours and Protection
  4. Main Protective Bonding
  5. Bathrooms: Zones and Supplementary Bonding
  6. Checking RCD Coverage on Paper
  7. Labels and Notices
IIIContinuity · pp. 19-26
  1. What a Continuity Test Proves
  2. Nulling Your Leads
  3. R1+R2 by Linking Line and CPC
  4. The Long-Lead Method
  5. Ring Final Circuit, Step 1: End-to-End
  6. Ring Step 2: Line-Neutral Cross-Connection
  7. Ring Step 3: Line-CPC Cross-Connection
  8. Bonding Conductor Continuity
IVInsulation Resistance · pp. 27-32
  1. What the Insulation Test Shows
  2. Test Voltages and Minimum Values
  3. Preparing the Circuit
  4. Line and Neutral Linked to Earth
  5. Low Readings and Parallel Circuits
  6. Recording Insulation Results
VPolarity and Earth · pp. 33-37
  1. Dead Polarity Test
  2. Single-Pole Switches and Lampholders
  3. Earth Electrode Resistance
  4. Measuring Ze at the Origin
  5. Live Polarity at the Origin
VILoop Impedance and Fault Current · pp. 38-45
  1. The Earth Fault Loop, Drawn
  2. Zs = Ze + (R1+R2)
  3. Measuring Zs at the Furthest Point
  4. Disconnection Times
  5. Checking Zs Against the Device
  6. The 0.8 Rule for Hot Conductors
  7. Prospective Fault Current
  8. When Zs Is Too High
VIIRCDs and Functional Tests · pp. 46-51
  1. RCD Types: AC, A, F and B
  2. Test at the Rated Current
  3. The Fast Test at 5×IΔn
  4. Half-Rated Check and Nuisance Tripping
  5. The Test Button and the User
  6. Functional Testing of Switchgear
VIIICertificates and Records · pp. 52-58
  1. Which Document for Which Job
  2. The Schedule of Test Results, Column by Column
  3. Supply and Earthing Details
  4. Signing the Declaration
  5. Periodic Inspection: Sampling and Limitations
  6. Recording Observations and Defects
  7. Keeping Your Records
IXPractice and Review · pp. 59-64
  1. The Full Sequence on One Page
  2. Worked Example: A Three-Bed House
  3. Worked Example: A Small Three-Phase Shop
  4. The Most Frequent Testing Mistakes
  5. Course and Assessment Review Checklist
  6. Quick-Reference Card for the Van

One Page, One Topic, All Clear

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.

Transformer → line → fault → CPC → back to source: Zs is the whole loop.

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.

What's Inside Electrical Certification Illustrated:

Ipp. 5-11

Before You Test

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.

IIpp. 12-18

Inspection

The order to walk the visual inspection, the consumer unit, cables and colours, main bonding, bathroom zones, RCD coverage and labels.

IIIpp. 19-26

Continuity

What continuity proves, nulling the leads, R1+R2, the long-lead method, the three steps of the ring final circuit and bonding conductors.

IVpp. 27-32

Insulation Resistance

What the insulation test shows, test voltages and minimum values, preparing the circuit, low readings and how to record them.

Vpp. 33-37

Polarity and Earth

Dead polarity, switches and lampholders, earth electrode resistance, Ze at the origin and live polarity.

VIpp. 38-45

Loop Impedance and Fault Current

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.

VIIpp. 46-51

RCDs and Functional Tests

RCD types, the test at rated current, the fast test at 5×IΔn, the half-rated check, the test button and switchgear checks.

VIIIpp. 52-58

Certificates and Records

Which document for which job, the schedule column by column, supply details, the declaration, periodic inspection, defects and records.

IXpp. 59-64

Practice and Review

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.

Plus: 2 Free Books

Test Sequence Workbook: 60 Exam-Style Questions with Answers

BONUS 1: «Test Sequence Workbook: 60 Exam-Style Questions with Answers»

Value on its own: US$ 17.90

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

15 Certification Mistakes: Before & After Cards

BONUS 2: «15 Certification Mistakes: Before & After Cards»

Value on its own: US$ 14.90

The most common testing and paperwork errors side by side with the right way, so you can check your own certificates in a glance.

Electrical Certification Illustrated with 2 Free Books

  • Electrical Certification Illustrated: 64 illustrated pagesUS$ 63
  • BONUS 1: Test Sequence Workbook: 60 Exam-Style Questions with AnswersUS$ 17.90
  • BONUS 2: 15 Certification Mistakes: Before & After CardsUS$ 14.90
  • High-resolution PDF to printIncluded
Total value US$ 95.80
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Who This Book Is For

You're on the Qualified Certifier course

You're on the Qualified Certifier course

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.

Your assessment visit is coming up

Your assessment visit is coming up

The sequence, the readings and the schedule columns at a glance, so you can explain each result without stopping to think.

You already certify your own work

You already certify your own work

A printed reference for the van: the order of the tests, the key values and how each one goes on the certificate.

Everything You Get Today

US$ 95.80US$ 27
YES, I WANT ELECTRICAL CERTIFICATION ILLUSTRATED FOR US$ 27

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Frequently Asked Questions

Is it for me if I've been an electrician for 20 years or more?

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.

Is it written for Ireland, or is it a UK book with a new cover?

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.

Is this official material?

No. It's an independent study book. It isn't published, approved or endorsed by NSAI, the CRU, Safe Electric or any course provider.

Does it replace the Qualified Certifier course or my training?

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.

Are the practice questions the ones from the course assessment?

No. All the questions are written for this book to practise the same topics. They aren't official questions from any course or assessment.

When and how does it arrive?

The book and the 2 gift books arrive as a PDF by email.

Do I have to pay every month?

No. It's a single payment, with no subscription.

Can I have it on paper?

Yes. The PDF is made to print: at home, in a print shop, or just the pages you want for the van.

How does the refund work?

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.

Before You Close This Page

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.

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