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Hima-Sella's Planar4 logic solvers secure Sellafield approval
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Fusion42 · 5 August 2026 · Fusion42 review
Hima-Sella's Planar4 logic solvers have secured approval for use in Sellafield nuclear safety applications, evaluated under the EMPHASIS methodology for compliance with IEC 61508 functional safety standards. These modules are currently rated SIL 1, with potential for re-evaluation to SIL 2 through additional software assessment.
This Wire brief sits within Fusion42's coverage of Industrial.
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You can now integrate Hima-Sella’s Planar4 logic solvers into UK nuclear safety systems with official approval, opening access to critical Sellafield contracts. This approval suggests immediate vetting hurdles have lowered for safety-critical software components in nuclear infrastructure.
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1 source · 4 Aug 2026
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