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TÜV Rheinland Technical Assessment (2006/42/EC vs. 2023/1230)

Our technical assessment process transitions from the Directive (safety of hardware) to the Regulation (safety of hardware + digital integrity).

Risk Management (ISO 12100)

• Directive: Focuses on physical hazards (crushing, shearing, electrical).
• Regulation: Mandates assessment of corruptibility. TÜV audits the "protection against corruption" to ensure external signals cannot bypass safety functions.

Functional Safety (ISO 13849-1 / IEC 62061)

• Verification: Calculation of Performance Levels or Safety Integrity Levels.
• Logic Audit: Evaluation of safety-related software. Under the Regulation, safety-logic software is now defined as a standalone "safety component."

Cybersecurity (Essential Requirement)

• Connection Points: Technical testing of hardware interfaces (USB, Ethernet, Wi-Fi) to ensure they are "secure by design."
• Data Integrity: Verification that software updates or remote access cannot degrade the machine’s safety level.

Technical File & Documentation

• Gap Analysis: Comparison of existing technical files against the updated Annex III (Regulation) requirements.
• Digital Instructions: Review of the digital delivery system (QR codes/URLs) to ensure data persistence and accessibility for 10 years.

Conformity Modules

• Annex I (High Risk): For machines in the updated High-Risk list (e.g., AI with safety functions), TÜV performs Module B (Type-Examination) or Module H (Full Quality Assurance).
• Substantial Modification: Technical audit to determine if machine upgrades require a completely new CE marking process.

Physical Testing

• EMC/LVD: Electromagnetic compatibility and low voltage testing.
• Noise & Vibration: Measurement and validation of declared values in technical specs.

TÜV Rheinland’s Market Access Services (MAS) act as a technical bridge, allowing manufacturers to leverage a single safety assessment (often based on the EU Machinery Directive/Regulation) to satisfy specific national legal frameworks.

This process is defined by Technical Equivalence Mapping, where TÜV identifies the "delta" (the technical difference) between EU standards and regional requirements.

cTUVus (USA & Canada)

For North America, TÜV Rheinland acts as a Nationally Recognized Testing Laboratory (NRTL) in the US and a Designated Testing Organization in Canada.

• Technical Basis: Assessment against OSHA standards (US) and SCC requirements (Canada).

• Defining Action: Verification of components against UL (Underwriters Laboratories) and CSA (Canadian Standards Association) standards.

• Key Focus: Electrical safety, fire protection, and "field labeling" for custom machinery. Unlike the EU's self-declaration, the cTUVus mark provides third-party evidence of compliance required by local Authorities Having Jurisdiction (AHJs).

KC & KCs (South Korea)

South Korea distinguishes between general electronic safety (KC) and specific industrial machinery safety (KCs).

• KCs Mark (Occupational Safety & Health Agency - KOSHA): TÜV Rheinland assists in the mandatory safety certification for "dangerous" machinery (presses, cranes, pressure vessels).

• Technical Basis: Assessment against the Occupational Safety and Health Act.

• Defining Action: TÜV conducts the "Safety Certification" (initial factory audit + product testing) and "Self-Regulatory Safety Confirmation." They verify that the technical file meets Korean-specific linguistic and safety-logic requirements.

NR 12 (Brazil)

NR 12 (Norma Regulamentadora n.º 12) is one of the world's most stringent and prescriptive safety standards for machinery.

• Technical Basis: Brazilian Ministry of Labour regulations.

• Defining Action: TÜV Rheinland performs a Technical Appreciation (Risk Assessment) specifically formatted to NR 12 requirements.

• The "Defining" Difference: While EU CE marking allows for a balance of risk vs. utility, NR 12 is highly rigid regarding mechanical guarding and electrical interlocking. TÜV provides the ART (Anotação de Responsabilidade Técnica), a formal document signed by a Brazilian-registered engineer (CREA) certifying that the machine is safe for the Brazilian workplace.

TÜV Rheinland uses a specific four-step inspection framework designed to satisfy NFPA 790/791 in the US and CSA SPE-1000 in Canada.

Technical Documentation Review

We begin by auditing your technical file to ensure the foundation of the machine is compliant:

• NFPA 79 & NEC Compliance: Verification of wiring methods, overcurrent protection, and disconnects.

• Component Evaluation: Ensuring critical parts (breakers, motors, power supplies) carry the necessary UL or CSA marks.

• SCCR Analysis: Verification of the Short-Circuit Current Rating (required for the main nameplate).

Physical Construction Inspection

We perform a high-level visual and mechanical audit to mitigate risk:

• Electrical Safety: Inspection of enclosures, grounding/bonding, and wire color-coding.

• Mechanical Guarding: Assessment of pinch points, rotating parts, and automated hazards.

• Safety Controls: Verification that Emergency Stop circuits and light curtains meet functional safety categories.

Essential Safety Testing

Using calibrated equipment, our engineers conduct mandatory field tests including:

• Grounding Continuity: Ensuring a low-impedance path to earth.

• Insulation Resistance: Verifying the integrity of conductor insulation.

• Dielectric Strength (Hi-Pot): Mandatory for CSA SPE-1000 (Canada) to ensure surge resilience.

• Functional Testing: Live verification of all safety-interlock shutdowns.

TÜV Rheinland provides comprehensive PUWER (Provision and Use of Work Equipment Regulations 1998) assessment services to ensure workplace machinery is safe, compliant, and legally sound.

Below is a brief summary of their assessment process and key focus areas.

The TÜV Rheinland Assessment Process

• On-site Inspection: Expert engineers conduct a physical walkthrough of the workplace to inspect specific machinery and tools.

• Non-Conformance Identification: Upon completion, they deliver an immediate overview of any areas where the equipment fails to meet UK safety standards.

• Countermeasure Discussion: They provide technical advice on potential solutions and safety modifications to bring equipment into compliance.

• Detailed Reporting: A formal PUWER report is typically issued within 1–2 weeks, documenting findings and recommended actions.

What the Assessment Covers

TÜV Rheinland’s engineers evaluate equipment against the 24 specific regulations within PUWER, focusing on:

• Suitability: Ensuring equipment is appropriate for its intended purpose and specific work environment.

• Safety Controls: Verifying the presence and functionality of start/stop controls, emergency stops, and speed regulators.

• Physical Protection: Checking for adequate guarding of dangerous moving parts to prevent entanglement or crushing.

• Maintenance & Records: Reviewing maintenance logs to ensure the equipment is kept in a safe condition throughout its lifecycle.

• Operator Training: Assessing whether the users have received sufficient information, instruction, and training to operate the machinery safely.

Key Benefits

• Legal Protection: Helps avoid HSE (Health and Safety Executive) investigations and costly fines for non-compliance.

• Independent Verification: Provides an impartial, third-party "competent person" inspection as required by Regulation 6.

• Operational Efficiency: Identifying wear and tear early prevents unexpected breakdowns and enhances production reliability.

Domestic Compliance (UK & Europe)

If your machinery is operating within the UK, we verify conformity against the Supply of Machinery (Safety) Regulations 2008 and PUWER.

• UKCA / CE Marking: We provide Approved Body services to verify your Technical File, conduct Risk Assessments (ISO 12100), and ensure "Designated Standards" are met.

• PUWER Inspections: On-site safety audits to ensure equipment is suitable, maintained, and guarded to protect operators, providing you with a legal "due diligence" trail for the HSE.

• Functional Safety: Verification of safety-related control systems (ISO 13849-1/IEC 62061) including E-Stops and light curtains.

Export Support (US & Canada)

Avoid the risk of your machine being "Red-Tagged" upon arrival in North America. We perform Field Evaluations at your UK facility before the machine is crated.

• US Standards: Inspection to NFPA 79 (Electrical Standard for Industrial Machinery) and NFPA 791.

• Canada Standards: Inspection to CSA SPE-1000.

• The Benefit: We apply the TÜV Rheinland Field Label in the UK, ensuring the local inspector (AHJ) in the US or Canada allows an immediate power-up upon installation.

TÜV Rheinland's Approach to Reg 6 Planning

TÜV Rheinland doesn't just perform the inspection; they help you build the inspection framework:

• Risk-Based Frequency: They help define "suitable intervals." For example, high-risk machinery might require monthly inspections, while static, low-wear equipment may only need an annual audit.

• Competency Mapping: They ensure the person performing the check—whether an internal staff member for daily checks or a TÜV engineer for annual audits—has the specific technical knowledge required.

• Inspection Schemes: For complex sites, they develop a Written Scheme of Examination, detailing exactly which safety-critical parts (guards, interlocks, emergency stops) must be tested.

• Record Management: They provide the formal documentation required by law. Under Regulation 6(3), records must be kept and made available to the HSE upon request.

When machines are interconnected, the "safety interface" becomes the critical hazard zone. TÜV Rheinland assesses these lines to ensure the combined assembly functions as a single, safe entity under ISO 11161 and the Machinery Regulation (EU) 2023/1230.

The "Integrated System" Challenge

The primary technical goal of a PLA is to identify risks that do not exist in standalone machines but appear during integration:

• Emergency Stop Propagation: Verification that pressing an E-stop on one module correctly halts relevant upstream/downstream equipment without causing mechanical collisions.

• Interlocking Logic: Ensuring that opening a guard on "Machine A" prevents "Machine B" from ejecting parts into the now-exposed area.

• Material Flow Hazards: Assessing pinch points and crushing zones created by conveyors, robotic transfer units, and AGVs (Automated Guided Vehicles) moving between cells.

Technical Methodology

TÜV Rheinland uses a proprietary PLA Checklist that focuses on on-site validation rather than just theoretical documentation:

• On-Site Inspection: Direct evaluation of the fully installed line. This is crucial because factory site conditions (floor leveling, power quality, and lighting) affect safety.

• Interface Analysis: Deep dive into the "handshake" signals between different machine controllers (PLCs).

• Performance Level ($PL$) Verification: Checking if the overall system maintains the required safety integrity across communication protocols like PROFIsafe or CIP Safety.

Assessment Tiers

TÜV typically offers three levels of reporting for a PLA:

1. Binary Pass/Fail: A strict compliance check against local regulations.
2. Traffic Light System: A visual risk-priority report (Red: Immediate Action; Yellow: Improvement Needed; Green: Compliant).
3. Internal Benchmarking: For global companies, this allows comparing the safety performance of different production lines or equipment suppliers across multiple international sites.

Transition to Regulation (EU) 2023/1230

Under the new Machinery Regulation, PLAs now include technical audits for:

• Digital Interconnectivity: Ensuring that the network used to link the production line is resilient against unauthorized access that could disrupt safety functions.

• Substantial Modification Audit: If a line is upgraded (e.g., adding a new robot to an old conveyor), TÜV determines if the modification is "substantial." If it is, the entire line must be re-CE marked as a new integrated system.

Benefits of the PLA Service

• Minimized Downtime: Identifying interface logic errors during the commissioning phase rather than during full-scale production.

• Global Harmonization: Aligning a line built with German, Chinese, and US components to a single safety standard (like NR 12 for Brazil or CE for Europe).

• Legal Protection: Providing a third-party certificate of conformity that shields the plant operator from liability in the event of an accident.

Why Use TÜV Rheinland for Audits?

Impartiality: As a global leader in industrial safety, they act as the "competent person" required by the HSE, providing unbiased third-party verification.

Risk Reduction: Helps prevent workplace accidents that lead to downtime, which currently costs UK employers an estimated £252 million annually.

Gap Identification: They identify not just "what" is wrong, but "why" it doesn't meet standards, linking findings to specific UK and EU safety directives.

As the industry moves from the Machinery Directive 2006/42/EC to the new Machinery Regulation (EU) 2023/1230, the landscape for manufacturers and importers has fundamentally shifted. While the Directive served us well for nearly two decades, the new Regulation—mandatory as of 20 January 2027—addresses the modern reality of digital integration and automated systems.

At TÜV Rheinland UK Ltd, we are helping our partners bridge the gap between traditional mechanical safety and the new digital compliance requirements.

1. A Digital-First Framework

The most significant change is the recognition of Software as a Safety Component. Under the new Regulation, safety-related software is no longer just "part of the machine"—it is a standalone safety element.

• Logical Integrity: We verify that safety code cannot be bypassed or enter unintended states.
• Cyber-Safety: For the first time, protection against corruption (hacking or unauthorized access) is a mandatory safety requirement. If a digital breach could cause a physical hazard, the system is non-compliant.

2. Compliance for "High-Risk" Machinery

The Regulation introduces stricter rules for machines involving Artificial Intelligence (AI) or self-evolving logic.

• Third-Party Assessment: For certain high-risk categories, manufacturers can no longer rely on self-declaration.
• TÜV Involvement: As a leading testing body, we conduct the necessary "Conformity Assessment" to ensure these complex systems meet the Essential Health and Safety Requirements (EHSRs).

3. The "V-Model" for Modern Systems

TÜV Rheinland UK Ltd utilizes the V-Model to ensure safety is integrated from day one:

1. Requirement Phase: We help define the necessary Performance Levels ($PL$) for your specific functions.
2. Design Audit: We evaluate your system architecture to prevent "single points of failure."
3. Physical Validation: Our engineers perform "fault injection" testing—simulating real-world failures to ensure the machine remains in a safe state.

4. Modern Documentation

The Regulation finally embraces the digital age, allowing for Digital Instructions (e.g., via QR codes). However, the manufacturer must provide a paper version upon request at the time of purchase. We ensure your technical files—digital or physical—meet these new administrative standards.