OHL & Conductor Assessment

Overhead Line & Conductor Condition Assessment

Evidence-based assessment to support retain, monitor, refurbish or replace decisions.

Our approach

Primary Logic provides OHL conductor condition assessment for UK electricity and infrastructure networks. Overhead line conductor testing combines sample examination, laboratory evidence and engineering interpretation to support maintenance, asset-management and replacement decisions.

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From sample to engineering decision

Testing is undertaken using Primary Logic laboratory capability and specialist technical partners where appropriate.

  • Visual examination
  • Conductor dimensions
  • Torsion testing
  • Grease condition and loss assessment
  • Electrical resistance and resistivity
  • Mechanical testing
  • Tensile testing where required
  • Metallurgical examination
  • Galvanising or coating assessment
  • Conductor condition interpretation
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Conductor resistance & resistivity testing

Electrical resistance and resistivity testing can form part of a conductor condition assessment. The test scope is agreed around the conductor material, sample condition and applicable specification.

Results are interpreted alongside mechanical and materials findings, conductor dimensions and available operating history. A single measurement does not determine remaining service life.

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Utility & infrastructure networks

Assessment scopes can be developed around the applicable asset-owner, industry or rail/OLE specification.

  • Distribution networks
  • Transmission networks
  • Private OHL
  • Industrial networks
  • Rail and electrified transport where appropriate specifications are defined

From evidence to action

Sample. Test. Interpret. Recommend.

  1. Sample

    Controlled recovery and sample handling.

  2. Test

    Mechanical, electrical and materials assessment.

  3. Interpret

    Results considered alongside conductor type, age, operating history and asset condition.

  4. Recommend

    Continued service, monitoring, targeted intervention or replacement.

Planning your enquiry

Useful questions

What information is useful before conductor testing?

Conductor type, sample availability, approximate age, operating history and the decision the assessment needs to support help define the scope. Sample recovery and handling should be agreed before material is removed.

Is all testing carried out in-house?

Testing is undertaken using Primary Logic laboratory capability and specialist technical partners where appropriate. The scope and delivery arrangements are agreed for the assessment.

Start a conversation

Discuss a Conductor Assessment

Speak to Primary Logic about grid strategy, HV engineering, asset assessment or energy development.

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