What this part establishes
IEC 62305-1 provides the overall lightning-protection framework: lightning parameters, sources and types of damage, types of loss, the need for protection, and the relationship between external and internal protection measures.
How it connects to a building project
Part 1 is the starting point for understanding what must be protected and how the four-part IEC 62305 series works together. Risk management is then handled in Part 2, physical LPS design in Part 3, and surge protection measures for internal electrical/electronic systems in Part 4.
Key project outputs
A project should identify the structure, services entering the structure, people/contents, potential lightning effects, relevant loss/consequence considerations, and the protection measures that will later be selected by the risk and design process.
Current-edition note
IEC 62305-1:2024 is the current IEC edition. Indian project specifications may cite older IS/IEC adoptions or NBC 2016 references; the applicable contract/tender/BIS adoption and local authority requirements must therefore be checked for each project.
Engineering Reference Table
| Design question | Part 1 role |
|---|---|
| What can lightning damage? | Defines the overall protection context. |
| What other IEC parts are used? | Links Part 2 risk, Part 3 external LPS, Part 4 internal SPM. |
| Can Part 1 alone give a BOQ? | No. It is a framework, not a standalone quantity-calculation standard. |
Project Implementation Checklist
For an actual project, record the applicable standard edition, risk-assessment assumptions, approved drawings, selected design method, calculation revision, component specification, inspection/testing requirements and final engineering approval.
Official Source
Use the official issuing body's publication for the controlled standard text and current status.