TDMI Training

⚡ COMING SOON: FREE SANS 10142-1 ED. 3.03 VIDEO SERIES

The electrical industry has entered a new chapter.

SANS 10142-1 has been updated from Edition 3.02 to Edition 3.03, introducing important changes that affect electrical installations, alternative supplies, inverter and battery systems, testing procedures, certification and generating plants.

TDMI Training has completed a detailed comparison of the changes introduced through Amendment 3 and will soon launch a free professional documentary-style video series explaining what these changes mean in practical terms.

This series is being developed for:

⚡ Registered Persons
⚡ Electrical contractors
⚡ Electricians and technicians
⚡ Solar and battery installers
⚡ Electrical students and training providers
⚡ Consultants, engineers and industry stakeholders

The five-part series will cover:

Episode 1 — Understanding Amendment 3
The scope of the amendment, new references and why Edition 3.03 matters.

Episode 2 — Installation Requirements
Changes affecting cables, conductors, circuit arrangements, disconnecting devices and installation practices.

Episode 3 — Alternative Supplies and Island Mode
Inverters, generators, neutral-to-earth referencing, backup systems and island-mode operation.

Episode 4 — Testing and Verification
Earth-loop impedance, neutral-loop impedance, prospective short-circuit current, insulation resistance and updated testing requirements.

Episode 5 — PV, Batteries and the New Test Reports
Structural requirements, fire risks, generating plants and the new Annex S test report for PV and battery installations.

Each episode will focus on the practical meaning of the changes and how they may affect the work of electrical contractors and Registered Persons.

Free to the electrical industry

The full series will be made available free of charge as part of TDMI Training’s commitment to education, industry development and improved electrical safety in South Africa.

The videos will be released one episode at a time, allowing the industry to study, discuss and understand each section before moving to the next.

📢 Follow TDMI Training and Nearby Electrician to ensure that you do not miss the launch of Episode 1.

Important: The series and accompanying change register are practical educational summaries. The official wording of SANS 10142-1 Ed. 3.03 must always be consulted for legal and technical application.

⚡🔌 HIDDEN WIRES – GOD SEES WHAT NOBODY ELSE CAN 🙏

Every electrician knows that the most important parts of an installation are often the ones nobody will ever see.

The cables behind the walls.
The perfectly tightened terminals.
The earth continuity.
The hidden workmanship that keeps people safe for years to come.

The same is true in life.

People often see the finished product...
But God sees the hidden wires—your integrity, your character, your faithfulness, and every decision you make when no one else is watching.

Just as a quality installation is built on what is hidden, a life that honours God is built on the character that only He can see.

This week, be encouraged to keep doing the right thing—even when nobody notices. Your excellence is never wasted, because the One whose approval matters most sees every hidden detail. ❤️

📖 "Whatever you do, work at it with all your heart, as working for the Lord, not for human masters."
— Colossians 3:23–24

Read this week's Monday Inspiration here:
👉 https://www.tdmi.co.za/blogs/inspiration/hidden-wires-god-sees-what-nobody-else-can

May your workmanship reflect your faith, both in the installations you build and in the life you live. ⚡🙏