Functional Safety Services

Compliance to the international Standards such as IEC 61508 and IEC 61511 are imperative to meeting the Functional Safety requirements for many processes and have formed part of the quality management systems of many companies. Provision of Functional Safety Services in line with the Phases and Activities detailed in the Safety Life-cycle is an area in which our consultants have demonstrated to have vast experience and expertise.

Functional Safety services can be categorised into 3 main areas:

  • Management of Functional Safety for control and minimisation of Systematic Errors.
  • Reliability assessment in terms of Random Hardware Failures.
  • Architectural assessment and requirements for Hardware Fault Tolerance.

Input of expert consultancy services in Front End Engineering or Detailed Design stages are key in achieving Functional Safety. Support in procurement, design and implementation of Safety Instrumented Systems are imperative in meeting the safety requirements of a project. Engineering Safety can support you on all your functional safety requirements.

The following is an extraction from IEC 61508, which represents the simplified Safety Life Cycle.

Our Services Are


Process Hazard Analysis

Qualitative hazard and risk analysis in aid of IEC 61511 Phase 1 or IEC 61508 requirements

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SIL Classification or SIL Determination

Allocation of Safety Functions to protection Layers

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Safety Requirement Specification (SRS)

Development or evaluation of Safety Requirement Specification for provision of Safety Instrumented Systems (SIS)

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SIS Conceptual Design

Design and Engineering consultancy for the Safety Instrumented System (SIS) in accordance with requirements of IEC 61508 and IEC 61511

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SIL Verification

Reliability assessment and Architectural requirements for Safety Integrity Level (SIL) classified Safety Instrumented Functions (SIFs)

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Installation, Commissioning and Maintenance Support

Factory Acceptance Testing (FAT) and Site Acceptance Testing (SAT) consultancy support in development of procedures and presence as well Proof Testing requirements for the Safety Instrumented Functions (SIFs)

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Functional Safety Training

Functional Safety Training for engineers, project management team, operators and end users

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Prior Use or Proven in Use

Concept of proven in use or prior use in evidence or supporting evidence of compliance to IEC 61508 and IEC 61511

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Functional Safety Assessment

Independent Management of Functional Safety Assessments, Audits & Support

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Functional Safety Lifecycle & Management

Functional Safety Lifecycle and Management is a key requirement demonstrating how Functional Safety is to be implemented and achieved

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