Common Electrical Installation Mistakes – And How to Avoid Them
I see many installations that work – but are far from optimal. And in some cases, they are directly dangerous.
Here are the mistakes I most often encounter – and how to fix them correctly from the start.
Cables that are too thin
Cables that are too thin cause voltage drop and poor performance – especially over longer distances.
Typical problem:
- Equipment works weakly or unreliably
- Cables get hot
How to fix it:
Size cables correctly – and always use a slightly larger cable than the minimum.
Fuses are incorrectly placed – or missing
A classic: the fuse is too far from the battery – or is completely missing.
How to fix it:
The fuse must be placed as close to the battery as possible – otherwise, it won't protect the cable.
Poor connections
Loose or poorly crimped cable lugs create resistance and heat.
How to fix it:
Use proper cable lugs and a correct crimping tool.
No overview of power consumption
Many people don't know how much power they use – and just guess.
How to fix it:
Install a battery monitor and get a full overview.
No plan for the installation
Many build gradually – and end up with a messy and inefficient system.
How to fix it:
Start by calculating your consumption and build the system correctly from the beginning.