Treat “SF6-free” as a product claim requiring evidence
SF6-free gas-insulated switchgear may use an alternative insulation or interruption technology, but the selection still depends on voltage, fault duty, switching, environment, footprint, service, and applicable project requirements. The gas or medium alone does not define the complete assembly.
Questions for a supplier
| Question | Why it matters |
|---|---|
| What insulation and interruption medium is used? | Defines the product technology and evidence |
| What voltage, current, and fault duty apply? | Establishes the electrical boundary |
| What are the switching and earthing arrangements? | Confirms operating and maintenance states |
| What monitoring and service data are supplied? | Supports lifecycle and maintenance planning |
| Which tests and standards apply to this configuration? | Prevents transferring claims from another product |
Scope boundary
This guide does not claim environmental superiority, certification, or equivalence for any unspecified product. Verify the manufacturer’s technical file and project requirements.
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