Understand the interface decision

Protective bonding connects relevant conductive parts into the designed fault-protection arrangement. An electrode connects the installation to earth under specified conditions. Lightning, fault-current and surge-control objectives must be coordinated, but one visible rod does not demonstrate that every required conductor or termination is present.

Protection decisions depend on the actual earthing arrangement, available fault energy and equipment instructions. Treat the following as review inputs for the responsible electrical designer. Device names alone cannot establish a coordinated or compliant installation.

Put these inputs in the review record

Use a project-specific worksheet to capture the following information. For each entry, name the document, revision and person responsible for resolving any uncertainty.

• Tower, enclosure and exposed-part protective-bonding requirements. Identify the exact configuration and the supporting document.
• The complete earthing arrangement and electrode design. Keep the design assumptions visible in the project record.
• Continuity and connection evidence for the relevant bonding paths. Name the responsible reviewer and resolve any missing information.
• Lightning and surge interfaces covered by the electrical design. State how this entry will be verified during acceptance.

Define the acceptance boundary

Accept the installation against the approved earthing and bonding documentation and its specified verification. Do not substitute a resistance reading from one electrode for continuity evidence across the protective-bonding network. The measurements answer different questions.

The handover drawing should identify bonding conductors and termination locations. This is especially useful where tower suppliers, electricians and converter installers have separate scopes that could otherwise leave an interface unresolved.