Resources
Power Guide
Power guides that set out supply needs, isolation points, and electrical checks before a cutting cell is brought online.
How the Power Guide gets used in a site week
The Power Guide page covers the electrical basics that should be clear before a cutting cell is brought online. It records supply requirements, isolation points, and the checks to complete before the machine is energised on site.
Begin with the machine nameplate, incoming voltage, and breaker size at the isolator. A Power Guide for a cutting cell must show phase requirement, earthing arrangement, and where supply variation has been seen on site. Conditions in Johannesburg, Durban, and Cape Town matter because dust, humidity, and unstable mains each change what should be checked before first power-up.
Keep clear photos of the DB board, isolator, machine serial plate, and cable entry point with the guide. Those images help match the documented supply to what is physically connected at the cell. One marked-up copy near maintenance records is far more useful than relying on memory during a restart after a trip or outage.
Power details that must match
The outcome should be the actual supply specification, the isolation locations, and the pre-start electrical checks for the cell. It also gives a record of what was measured or observed before energising the machine. Plain wording matters when electricians, operators, and maintenance staff all need to read the same note.
Use the Power Guide alongside machine photos, protection details, and any visible alarm on the control panel before asking for support. Cross-check cable size, plug or hardwire arrangement, and phase rotation against the machine documentation first. Please note the isolator rating, the supply point, and any screen fault code when you fill in the contact form.
- Supply voltage recorded from machine plate
- Isolation point identified before energising
Electrical conditions seen on site
A cutting cell installed in an older Crown Mines workshop does not present the same power questions as a newer unit near the coast. The guide notes what supply is actually available, what protection is fitted, and whether the machine is sharing a circuit with other heavy equipment. If production is live, mark which checks can be done cold and which require the machine to be isolated during a planned stop.
In Durban, moisture and corrosion around terminals and enclosures deserve attention before the cabinet is energised. On the Highveld, dust build-up around fans, filters, and electrical cabinets can affect cooling and sensor reliability. Load-shedding and repeated power returns also make it worth recording whether the control, drives, and safety chain recover cleanly after loss of supply.
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Power Guide records to keep
Send the power guide with site photos, supply details, and any fault already showing at the machine. Put the real power issue in the subject line.
Store the completed guide with the machine file, electrical drawings, and commissioning notes. It should show who checked supply details, what was observed at the isolator, and whether any mismatch was found between site power and machine requirement. That record helps when tracing nuisance trips, drive faults, or repeated restart issues later on site.
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