Introduction

The safety of technological processes at Ukrainian industrial enterprises requires strict compliance with European and national standards. Failure of emergency protection systems can lead to catastrophic consequences. The concept of SIL (Safety Integrity Level) defines the probability of a safety system failure when performing a given function. An understanding of this classification is critical for Chief Engineers, Occupational Safety Inspectors, and Chief Mechanic Service Managers.

The design and maintenance of equipment according to the standards of DSTU EN 61508 and DSTU EN 62061 allows minimizing risks in production. The selection of non-certified components in safety circuits is unacceptable. UNITEC-D GmbH supplies the Ukrainian market only with proven equipment with a complete package of documentation.

Scope of application

The requirements for compliance with the SIL level apply to the entire range of industrial facilities in Ukraine: from mining and beneficiation plants to food enterprises. The regulations cover complex technological equipment with increased potential for danger.

• Chemical and petrochemical industry: reactors, compressor stations, main pipelines.
• Metallurgy: blast furnaces, conveyor lines for transporting raw materials, hydraulic presses.
• Energy: turbine installations, fuel supply systems, distribution substations.
• Mechanical engineering: robotic complexes, automated machining lines.

Equipment operating under pressure in accordance with the Technical Regulation of equipment operating under pressure, as well as lifting mechanisms are subject to a mandatory risk assessment.

Basic requirements of SIL standards

The SIL system covers four levels according to international and national regulations. Each level corresponds to a range of probability of dangerous system failure per hour (PFDavg for low demand modes or PFH for high demand modes).

The DSTU EN 61508 standard is basic for all electrical, electronic and programmable electronic security systems. For mechanical engineering, DSTU EN ISO 13849-1 is key, which uses performance categories and levels (PL from a to e).

Impact on MRO operations

The introduction of SIL-rated systems is changing maintenance, repair and operation (MRO) approaches. Normal replacement of components due to failure is unacceptable here. Strict regulations must be followed.

• Periodicity of checks: Testing of protective circuits should be carried out at intervals determined by risk calculation (usually from 1 to 12 months).
• EMP Management: Spare parts in stock must have SIL compliance certificates and be stored taking into account the shelf life of electronic components (MTBF).
• Documentation: Any tampering with the safety circuit is recorded in the maintenance log with configuration parameters.
• Qualification of personnel: Automation systems adjustment engineers must have a confirmed certification (for example, TÜV Certified Functional Safety Engineer).

Requirements for components and spare parts

Not every sensor or valve can be used in a safety circuit. The component manufacturer is obliged to provide a SIL conformity certificate issued by an accredited body (TÜV, EXIDA, etc.). This applies to a wide range of industrial fittings and electronics.

1. Limit switches and position sensors: Must have redundant contacts and self-diagnosis.
2. Shut-off valves with electro-pneumatic positioners: The activation time of the emergency relief valve (ESD) must correspond to the calculated interset time (for example, full closure in $t \le 2.0$ s).
3. Frequency converters: The safety function STO (Safe Torque Off) according to DSTU EN 61800-5-2 is mandatory for drives of conveyors and elevators.
4. Programmable Logic Controllers (PLC): Only use controllers with 1002 or 2003 architecture redundancy.

SIL Compliance Checklist

A practical tool for the safety engineer and the chief energy engineer of the enterprise to check the condition of the equipment:

• [ ] Availability of an up-to-date safety passport for the technological line.
• [ ] Availability of SIL certificates for all components of the protection circuit (sensors, logic, actuators).
• [ ] Correspondence of the real response time to the calculated value.
• [ ] Presence of self-diagnosis function in sensors and actuators.
• [ ] Compliance with functional testing intervals (Proof Test Interval).
• [ ] Presence of seals on protective relays and PLC parameters.
• [ ] Keeping an electronic or paper log of security event registration.
• [ ] The presence of a reserve of certified components in the warehouse of ZIP.
• [ ] No unauthorized modifications in the control circuits.
• [ ] Availability of certificates from the subcontractor that performs maintenance of SIL circuits.
• [ ] Checking the condition of insulation and cable lines of the security system.
• [ ] Availability of operating instructions in Ukrainian.
• [ ] Checking the functionality of the emergency stop buttons (Emergency Stop).
• [ ] Availability of feedback channels on the state of executive mechanisms.
• [ ] Conducted training and certification of personnel on the operation of SIL systems.

Typical audit violations

State supervisory bodies and independent auditors during inspections of industrial enterprises most often record the following inconsistencies:

• Use of commercial general-purpose sensors instead of SIL-certified devices in critical circuits.
• No record of regular testing of security features within the last 12 months.
• Installation of spare parts of unknown origin during planned repairs due to the lack of original components in stock.
• Ignoring the service life of components (Mission Time) specified in the manufacturer's passport (usually 10-20 years).
• No PFDavg/PFH calculations for modified control systems.

Liability and penalties

Violation of legislation in the field of labor protection and industrial safety in Ukraine entails serious consequences for the enterprise and officials.

Operation of high-risk equipment without certified protection systems is a direct reason for stopping the production process by the State Labor Inspection on the basis of the Code of Ukraine on Administrative Offenses.

In the event of an accident at work, the absence of SIL certificates for protection components qualifies as a gross violation of safety rules. This leads to:

• Criminal responsibility of the head of the enterprise and the chief engineer under Art. 271 of the Criminal Code of Ukraine.
• Refusals of insurance companies to pay compensation due to violations of operating conditions.
• Huge losses from downtime of the enterprise during the conduct of judicial and technical examinations.

Conclusion

Choosing components with the appropriate SIL level is not just a formal requirement of European standards, but a guarantee of smooth and safe operation of an industrial enterprise. The use of certified parts reduces the risk of unscheduled stops and protects personnel. UNITEC-D GmbH offers a wide range of industrial components that meet strict European standards and have a full package of permits for operation in Ukraine. Check out the range in UNITEC-D E-Catalog to select reliable and certified spare parts.

List of regulatory references

1. DSTU EN 61508:2014 Functional safety of electrical, electronic, programmable electronic systems related to safety.
2. DSTU EN ISO 13849-1:2016 Safety of machines and mechanisms. Safety-related details of control systems.
3. DSTU EN 62061:2017 Machine safety. Functional safety of safety-related electrical, electronic and programmable electronic control systems.
4. Technical regulation of machine safety, approved by Resolution No. 62 of the Cabinet of Ministers of Ukraine dated January 30, 2013.
5. Directive 2006/42/EC of the European Parliament and of the Council on machines and mechanisms.

Introduction: Why manufacturing safety standards determine the efficiency of production processes

Modern manufacturing systems require a high level of safety to ensure stability, efficiency, and regulatory compliance. Safety of manufacturing processes not only protects personnel but also ensures compliance with standards that define equipment safety requirements, namely SIL (Safety Integrity Level). Understanding and applying SIL levels is critically important for all manufacturing facilities, especially in Ukraine, where the production base strives to meet international standards.

Scope and application: who must comply, which devices, which industries

Certification to SIL levels is mandatory for all devices that perform safety functions, such as valves, sensors, distributors, relay devices, as well as control and management systems. The requirements apply in industries including metallurgy, chemical industry, energy sector, and machine manufacturing. They are defined in standard IEC 61508:2010, which establishes general safety requirements for systems.

Main requirements: table of primary responsibilities with terms

Impact on MRO: changes in servicing, purchasing, documentation

Safety system support at SIL levels requires significant changes in maintenance, procurement and documentation. Maintenance personnel must perform checks, use certified components and keep compliance documentation. Procurement of components requires additional verification to ensure their compliance with standards, not just functional compliance.

Requirements for components: which details require special certificates

Some components, such as sensors, relay devices, valves and electronic modules, must be certified to SIL level. This is defined by standard IEC 61508:2010, which establishes general safety requirements for systems. Additional certification is required for such components, including reliability testing, compliance with standards EN 50153:2012 and ISO 13849-1:2015. Compliance with standard EN 13849-1:2015 is also required, which defines safety requirements for control systems.

Practical checklist for service managers

1. Perform regular checks of all components for compliance with SIL level.
2. Keep certificates of all components used.
3. Use only certified components complying with standards EN 50153 and ISO 13849-1.
4. Conduct reliability tests every 12 months.
5. Check the documentation for compliance with legislation.
6. Perform maintenance according to the manufacturer's recommendations.
7. Use electronic systems for compliance tracking.
8. Conduct compliance audits annually.
9. Keep all certificates and documents in a centralized database.
10. Use components that comply with standard IEC 61508:2010.
11. Update the safety systems according to the new standards.
12. Ensure compliance with standards EN 13849-1:2015.
13. Use test rigs to check the operation of components.
14. Perform checks for compliance with UkrSEPRO standards.
15. Update the compliance documentation every 6 months.
16. Conduct training for personnel annually.
17. Use components that comply with standard ISO 13849-1:2015.
18. Perform tests for compliance with standards EN 50153:2012.
19. Keep all compliance documents in an accessible format.
20. Use components that comply with standard IEC 61508:2010.

Common non-conformance issues: what auditors identify

Auditors often find that components do not have certificates, or their certificates do not comply with current standards. Other issues include lack of documentation, use of non-certified components, lack of inspection plan, or non-compliance with standards EN 50153:2012. They also identify malfunctioning safety systems, leading to reduced safety levels.

Consequences of non-compliance: financial and legal consequences

Failure of the safety system may result in fines determined by Ukrainian legislation. For example, violation of UkrSEPRO standards may result in a fine up to 50000 UAH. Additionally, costs for system reconstruction may exceed 100000 UAH. Moreover, liability towards third parties may arise if the failure resulted in injuries or loss of production.

Conclusion: find components that meet the standards

Choosing the right technology and components for safety systems requires experience and knowledge. At UNITEC-D we offer developed components that comply with standards IEC 61508:2010, EN 50153:2012, ISO 13849-1:2015 and UkrSEPRO. Visit UNITEC-D E-Catalog to get access to certified components that meet your safety requirements.

Sources: official documents and regulatory publications

• IEC 61508:2010 — Safety System Standard.
• EN 50153:2012 — Standard for electrical equipment.
• ISO 13849-1:2015 — Safety Requirements.
• EN 13849-1:2015 — Requirements for control systems.
• UkrSEPRO — Ukrainian Standard for Safety Compliance.
• Certificates of conformity issued by manufacturers.

INTRODUCTION: Why standardization matters for business operations

Modern manufacturing in Ukraine depends on strict safety standards to ensure occupational safety, operational efficiency and compliance with legislation. Among the key standards that determine the safety of automated systems, the SIL (Safety Integrity Level) classification is of particular importance. Selecting components that meet established SIL levels is critical to ensure safe operation of the equipment.

EXPLANATION AND APPLICATION

SIL standards are established by IEC 61508 requirements that apply to automation and safety systems used in industrial facilities. They determine the level of reliability of the security system to ensure that the risk of dangerous situations is reduced. These standards apply to industrial equipment, including electric drives, sensors, reducers, valves, and other components included in safety systems.

MAIN REQUIREMENTS

IMPACT ON MRO OPERATIONS

Compliance with SIL standards affects the following aspects of the MRO's work:

• Change in component selection requirements: Not all parts can be used in safety systems.
• Additional documentation must be maintained to certify the compliance of each component.
• Increased cost of parts collection: High SIL components are more expensive.
• The need for regular inspection and testing of security systems.

REQUIREMENTS FOR COMPONENTS

Security systems require the use of components that have the appropriate certifications:

• Pressure and temperature sensors - certification EN 60068, ISO 9001.
• Valves and fans - certification EN 13445, ISO 12100.
• Electric drives - certification EN 60034, ISO 13849-1.
• Control systems - certification IEC 61508, ISO 13849-2.

CONDUCT OF COMPLIANCE CHECK

1. Determine the risk class of your security system.
2. Select components that meet the established SIL level.
3. Fill in documentation confirming compliance.
4. Perform regular inspections and testing of the security system.
5. Keep an archive of all certificates and instructions.
6. Check all components during major repairs.
7. Keep a log of compliance with standards.
8. Conduct safety training for staff.
9. Use risk analysis tools.
10. Apply automated control systems.
11. Carry out a compliance check annually.
12. Keep all documents in the appropriate order.
13. Keep a register of changes made to the security system.
14. Perform compliance analysis when implementing new systems.
15. Keep a log of changes in the documentation.

POPULAR SUBMISSION MISTAKES

Auditors often detect the following violations:

• Using components that do not have appropriate certificates.
• Insufficient testing of security systems.
• Incorrect use of SIL levels.
• Incomplete documentation.
• Insufficient staff training.
• Failure to perform regular inspections.

SANCTIONS AND COMPLIANCE

Failure to fully comply with SIL standards may result in:

• Financial fines: up to UAH 500,000 per violation.
• Liability insurance waivers.
• Liability for tort in injury cases.
• Refusal to receive relevant certificates.
• Refusal to receive state support.

CONCLUSION

Selecting components that meet established SIL levels is critical to ensure production safety. If necessary, you can find certified components in the UNITEC-D E-Catalog.

OFFICIAL DOCUMENTS

• IEC 61508:2010 - Safety of automation systems.
• ISO 13849-1:2015 - Security in management systems.
• EN 60034:2012 - Electric drives.
• EN 13445:2017 - Valves and pipelines.
• ISO 9001:2015 - Quality management systems.
• ISO 12100:2010 - Machine safety.

UNITEC-D E-Catalog

Introduction: Why standardization matters for the functioning of production

The safety of the production process is the basis of the efficiency, quality and durability of the equipment. In Ukraine, where the industrial production base plays a key role in economic development, compliance with safety standards and technical requirements is mandatory. In particular, the calculation of SIL (Safety Integrity Level) is a critical element to ensure the safe operation of machines and equipment.

Scope: who must comply with which components, which industries

SIL certification is required for all components responsible for the safety of production equipment, including valves, valves, sensors, solenoids, level sensors and actuators. These elements are used in industries such as metallurgy, chemical industry, energy and transport.

Main requirements: table of main duties and deadlines

Below is a table that shows the basic requirements for components used in security systems.

Impact on MRO operations: how support, procurement, documentation have changed

Compliance with SIL standards causes changes in the work of MRO services. In particular, there is a need to use certified components that meet SIL requirements. This affects the selection, procurement, installation and monitoring of components. Careful documentation is also required to ensure transparency and compliance.

Component Requirements: Which parts must meet specific certifications

Components used in safety systems must have certifications such as CE, UkrSEPRO, and also comply with standards such as EN 13445-2, IEC 60947-5-1 and EN 60751. For example, valves must comply with EN 13445-2 and level sensors with EN 60751.

Conformity Check: A Practical Check for Maintenance Managers

Below is a checklist that a maintenance manager can use to ensure compliance with SIL standards.

1. Check the certification of each component for compliance with standards.
2. Ensure that all components are used in conditions that meet their specifications.
3. Perform periodic inspection and maintenance of components in accordance with SIL requirements.
4. Maintain a compliance report to ensure transparency.
5. Use only certified spare parts that meet the standards.
6. Be sure to check whether the spare parts correspond to the available documentation.
7. Establish quality control and compliance processes.
8. It is mandatory to keep a maintenance log.
9. Conduct periodic audits to ensure compliance with standards.
10. Use modern methods of risk analysis and identification.
11. Use components that meet SIL requirements.
12. Check whether the spare parts meet the requirements for operating temperature and pressure.
13. Use components that meet the requirements for electrical characteristics.
14. Use components that meet the requirements for mechanical stability.
15. Use components that meet the requirements for operational durability.
16. Use components that meet energy efficiency requirements.
17. Use components that meet the requirements for environmental safety.
18. Use components that meet the requirements for strength.
19. Use components that meet reliability requirements.
20. Use components that meet the requirements for stability.

Common Compliance Issues: What Auditors Find

Auditors often find problems related to the use of improperly certified components, lack of documentation, or faulty quality control systems. These problems can lead to higher risk, higher costs and equipment malfunctions.

Sanctions and liability: consequences of non-compliance

Failure to meet SIL standards can result in fines, loss of insurance, liability to third parties, and loss of customer trust. In the event of an accident or accident, the company may suffer large financial losses and loss of reputation.

Conclusion: choosing certified components for safety

Selecting SIL-compliant certified components is critical to ensuring production safety. United-D is a reliable supplier of certified components that meet the requirements of DSTU, EN, ISO, as well as CE and UkrSEPRO standards. You can find all the necessary spare parts and components in our e-catalogue.

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Disposable sources: official standard documents

1. EN 13445-2: 2022 - Requirements for steel vessels and tanks
2. IEC 60947-5-1: 2021 - Requirements for switchgear
3. EN 60751: 2020 - Requirements for thermometers
4. ISO 13849-1: 2020 - Requirements for security features
5. DSTU 6089-2014: Requirements for equipment used in industrial settings
6. UkrSEPRO: Requirements for product certification in Ukraine