Mshezi Projects — Engineering a Better Tomorrow

Electrical engineering · Johannesburg & project locations

PrEng-led Soil Resistivity Testing
for Earthing Design.

PrEng-led field testing, engineering interpretation and earthing-design support for substations, mines, solar and BESS projects, industrial facilities and infrastructure across South Africa and selected Southern African locations.

Completed work includes Smart Schools, Sturrock Dry Dock, New Burgersfort Landfill and the Fungurume Electrification Project.

  • PrEngEngineering leadership
  • 20+ yearsIndustrial experience
  • Wenner four-pinSoil-resistivity testing
MININGINDUSTRIALINFRASTRUCTUREENERGYCOMMERCIAL

Core services

From field measurement to an implementable design.

Start with defensible site data, then add the engineering scope your project actually needs. Testing, design, review and commissioning are quoted as clear work packages.

One accountable engineering workflow, with clearly defined outputs at every stage.

01

Soil resistivity testing

Four-terminal field testing at planned electrode spacings to provide the measurements needed for soil interpretation and earthing-system design.

  • Wenner array measurements
  • Directions and spacings agreed in the survey plan
  • Test data, calculations and report
Explore testing scope
02

Earthing-system design

Practical electrode arrangements informed by measured site conditions and the installation environment.

  • Earth grid and electrode layouts
  • Conductor and material selection
  • Touch and step-voltage considerations
Explore design scope
03

Earth-system audits & commissioning

Independent checks of installed earth systems before handover or during periodic maintenance.

  • Installed-system measurements
  • Defect and interface review
  • Commissioning and periodic audit scope
Explore audit scope
04

Power-system engineering

Defined engineering support around LV/MV distribution, substations and protection interfaces.

  • Fault, protection and load-flow studies
  • SLDs, specifications and BOQs
  • Independent design review and assurance

Built for project teams

Choose the work package you need.

The same technical capability is packaged differently depending on who is appointing Mshezi Projects.

01

Consulting engineers

Specialist field testing without taking over the client relationship. You retain design ownership and receive controlled engineering data.

Request subcontract support

02

EPCs and contractors

Agreed mobilisation dates, defined test lines and reporting that can feed procurement, construction and design decisions.

Submit project information

03

Mines and asset owners

Independent assessment of soil and installed earth systems, with assumptions and limitations made explicit.

Book a technical discussion

Relevant experience

Selected project experience.

Selected soil-resistivity and earthing assignments completed by Mshezi Projects.

2024
EDUCATION INFRASTRUCTURE

Smart Schools soil-resistivity testing

Four school sites · Fixed 1 m spacing · Recorded apparent-resistivity readings

01
2021
INDUSTRIAL SITE

Sturrock Dry Dock soil-resistivity testing

Historical single-spacing test · 23 recorded measurements

02
LIMPOPO
WASTE INFRASTRUCTURE

New Burgersfort Landfill soil-resistivity investigation

49 recorded readings · Fixed 1 m spacing · Descriptive field summary

03
DRC
ELECTRIFICATION INFRASTRUCTURE

Fungurume Electrification Project

Specialist soil-resistivity subcontract awarded by Werkman DRC, the appointed main contractor

04

Read project scope and test-record summaries

Field evidence

Measurements start on site.

Test arrangements, recorded readings and the equipment used in our fieldwork.

Field test preparation

A short on-site view of the instrument, leads and stake preparation. 9 seconds · No audio.

View all fieldwork photographs

Delivery method

Clear evidence. Clear decisions.

A documented workflow: submit project information, define the survey, mobilise, measure, review, report and decide on the next engineering step.

  1. 01

    Define

    Confirm site, installation, access, test lines and deliverables.

  2. 02

    Measure

    Record spacing, direction, conditions and repeat readings.

  3. 03

    Interpret

    Calculate apparent resistivity and establish design inputs.

  4. 04

    Deliver

    Issue findings, assumptions, limitations and recommendations.

Typical deliverablesTest planSite readingsCalculation sheetsResistivity profileEngineering report

Standards-led engineering

A clear engineering basis for each appointment.

Methods and standards are confirmed for the actual installation, client specification and design decision.

IEEE 81-2025 · MeasurementIEEE 80 · Substation groundingSANS 10199 · Earth electrodesIEC 61936-1:2021BS EN 50522:2022SANS / IEC 62305

Testing and engineering methods are selected to suit the installation and client requirements. Applicable standards and current editions are confirmed at appointment, including IEEE, IEC and SANS requirements where relevant.

Why Mshezi Projects

Senior engineering judgement stays close to the work.

Mshezi Projects combines field testing with more than two decades of electrical engineering and leadership experience across mining, energy, oil and gas, and industrial environments.

Clients engage a technically led business able to understand the measurement, challenge weak assumptions and connect findings to the wider electrical design.

Scope & pricing

Know what you are commissioning.

Indicative soil-resistivity surveys from R18,500 excl. VAT, before mobilisation and travel. Final pricing depends on site extent, access, test lines and reporting scope.

The starting figure is a budget indication, not a fixed survey package. Your quotation will specify the number of test lines, electrode-spacing range, fieldwork allowance, report content and delivery date.

FIELD TESTING

Testing & reporting

For consulting engineers, EPCs and contractors who need site measurements before design.

  • Agreed test lines and electrode spacings
  • Recorded readings and apparent-resistivity results
  • Report with site conditions and limitations

Quoted separately: travel, inductions, additional test lines, remobilisation and engineering design.

ENGINEERING

Testing + design

For projects requiring measurements translated into an agreed engineering solution.

  • Testing scope plus defined design assessment
  • Layouts, calculations and material schedule as agreed
  • Review stages and document list agreed upfront

Not automatically included: installation, commissioning, certification or third-party approval.

What changes the fee? Location and travel • site area and test access • number of test lines • maximum electrode spacing • permits and inductions • design complexity • reporting requirements and programme.

Prepare a scoped enquiry

Before you book

Questions an engineer should answer.

Is soil resistivity the same as earth resistance?

No. Soil resistivity describes soil behaviour and is expressed in Ω·m. Earth resistance is a measurement of an installed electrode or system in Ω. One test does not automatically replace the other.

Does a low earth-resistance reading prove the design is safe?

No. The assessment may also require fault current, protection clearing time, bonding, touch and step voltages, and installation-specific requirements. A single resistance target is not a complete design basis.

What should I send for a quotation?

Site location, layout, proposed equipment or structure, access restrictions, required deliverables and target date. If you do not know the test spacings or number of lines, say so: these need to be agreed as part of the scope.

How are calibration and quality requirements handled?

The survey uses an identified instrument, a documented test arrangement and recorded field conditions. Include any instrument-calibration and traceability requirements in your brief so the supporting records can be reviewed before mobilisation.

Can I appoint Mshezi Projects as a subcontractor?

Yes. Mshezi Projects completed soil-resistivity testing for the Fungurume Electrification Project under a subcontract awarded by Werkman DRC, the appointed main contractor. Agree interfaces, report ownership and deliverables before appointment.

Where are projects supported?

Enquiries are welcomed for Johannesburg and other project locations. Travel, mobilisation, access and availability are confirmed in the quotation.

Can I see supporting project information?

Read the project summaries and reporting guide, then request the supporting information relevant to your appointment. Client-specific records are shared with the appropriate permission.

Start with the site details

Request a project quotation.

Start with a brief description. We will clarify the survey extent, access requirements and deliverables with you.

What happens next: we review your brief, clarify access and deliverables, then prepare a scoped quotation. Include your required site date so availability can be confirmed.

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