← Sterling & Wilson
⚠ This certificate has expired (2025/10/13)
Certificate of Compliance
TVC and VAC
145.499.7
| Certificate holder | Sterling & Wilson |
| Compliant item | TVC and VAC |
| Certification type | Site |
| Category | Smoke detection and ventilation |
| Initial certificate | 2022/10/13 |
| Current certificate | 2022/10/13 |
| Expire date | 2025/10/13 |
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Issued and certified by Risknowlogy — independent certification body for functional safety, operating according to IEC 61508 and IEC 61511.
Scope: Risknowlogy certified the Tunnel Ventilation System (TVS) and Ventilation Control System (VAC) of the Chennai Metro Rail System. The certification was performed according to EN 51028, on SIL 3 level and included:
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Software planning phase
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System development phase
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Software requirements phase
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Software architecture and design phase
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Software component design phase
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Software component implementation phase
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Software component testing phase
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Software integration phase
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Software validation phase
- Software deployment and maintenance phase
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Risknowlogy provides independent functional safety certification for products, subsystems, solutions, and FSM systems — according to IEC 61508 and IEC 61511.
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