Start with the machine load and your available supply
The first step is to match the machine’s electrical needs to what your workshop can actually provide. In Midrand, Sandton, Pretoria and the East Rand we often see sites with enough amperage on paper, but not enough capacity once compressors, welders, lighting and extraction are all running. Do a proper count of what will be on at the same time and compare that to the breaker size, cable size and supply type at the board.
Ask for the machine’s rated load before delivery and share photos of your distribution board and the proposed install area. If the unit will share a workshop with printers, routers or other sign-making equipment, plan for peak use rather than average use. That gives you a better chance of avoiding nuisance trips and downtime during first setup.
- Confirm supply type, single phase or three phase
- Check breaker size and spare ways on the board
- List other machines that run at the same time
- Measure the cable run from board to machine point
Make sure the board, isolator and protection are suitable
A clean supply is not only about power. It is also about safe protection. Your machine should have a proper isolator within easy reach, clear labelling at the board and protection matched to the installation. If your workshop has load-shedding changes, voltage dips or frequent switching, the setup must be checked carefully before the machine arrives. That is especially important in older industrial spaces and factory units around the West Rand and Durban where boards may have been added to over time.
Use a qualified electrician to check earthing, terminations and any signs of heat damage. Loose connections can cause voltage drop and nuisance faults, and they usually show up when the workshop is busy. If the machine needs a dedicated circuit, keep it separate from general sockets. It saves time later and makes fault-finding much easier.
- Fit a lockable isolator where the operator can reach it quickly
- Confirm proper earthing and polarity at the point of use
- Replace damaged plugs, sockets and cabling before install day
- Label the circuit clearly for operators and service staff
Plan cable routes, floor space and machine access
Power prep is not only inside the board. The cable route from the distribution point to the machine must be safe, neat and protected from forklifts, trolleys and foot traffic. In busy workshops, a cable that crosses a walkway becomes a trip hazard and a maintenance problem. Keep the route short, avoid tight bends and make sure there is enough slack for servicing later.
Also check the physical space around the machine. Our team may need room for unpacking, levelling, testing and training. A cramped area slows commissioning and can make it harder to get accurate results. Leave space for material handling, return stock and waste offcuts so the operator can work properly from day one.
- Leave clear access to the board and the machine point
- Protect cables with proper trunking or conduit
- Keep the floor dry, level and free of loose offcuts
- Allow space for maintenance panels and emergency access
Prepare for load-shedding and unstable power
Many South African workshops need to work around load-shedding, and machine setup should reflect that reality. If your production depends on scheduled operating windows, think through startup, shutdown and recovery after a power cut. Sudden power loss can interrupt a job, affect calibration or cause avoidable wear on components. In coastal areas like Durban, add humidity into the picture as well, because moisture and electrical gear do not mix well.
Keep a plan for safe shutdown and restart. Operators should know who to call, where the isolator is and how to make the machine safe if supply drops. If your site uses backup power, confirm that it can handle the machine’s starting demand and that changeover does not create unstable voltage. A backup unit that works for lighting may not be enough for production equipment.
- Write a load-shedding shutdown procedure for operators
- Test backup supply under realistic conditions before commissioning
- Store spare fuses and basic consumables on site
- Use surge protection where appropriate for sensitive controls
Have documents ready for the electrician and installer
A smooth install starts with the right paperwork and measurements. Before the team arrives, keep floor plans, board photos, circuit notes and contact details together. This helps the electrician and installation supervisor work from the same information instead of guessing on site. If your workshop is in Pretoria, the East Rand or Midrand industrial areas, access rules can also matter, so share gate codes, security requirements and loading bay details early.
It also helps to keep a simple checklist with photos of the proposed power point, machine position and any hazards. If there are municipal limits, landlord rules or shared-site restrictions, note them upfront. Small issues like access times or after-hours noise can delay commissioning if nobody knows about them before delivery.
- Photo of distribution board with covers open and closed
- Distance from board to machine position
- Contact details for the site manager and electrician
- Any landlord, estate or factory access rules
Use a final pre-commissioning checklist
On the day before installation, do one last walk-through. Check that the machine point is clear, the supply is live and the electrician is available if needed. Confirm that training staff and operators know the schedule so the first test run is not interrupted by another job. A well prepared site saves time, reduces call-backs and makes the first production samples far more predictable.
If you are unsure about any part of the setup, send photos and basic measurements before delivery. That small step often avoids delays and unnecessary site visits. For sign makers working across Sandton, the West Rand, Durban and beyond, good preparation is one of the easiest ways to keep install day on track.
- Power point tested and ready
- Machine area cleaned and marked out
- Operator and electrician available
- Emergency contact numbers close by
