Electrical Engineering Standards Summary – September 2025 Review (Part 3 of 6)

Looking back at September 2025, the Electrical Engineering sector experienced a substantial period of standardization activity, with five major standards released that responded directly to the evolving technological, digital, and electrification priorities of the industry. These publications showcased progress in dynamic charging infrastructures, advanced safety in explosive environments, digital interoperability for grid-connected systems, smart data exchange for energy management, and enhanced digital modeling for building systems. For professionals seeking to remain at the leading edge of compliance, quality management, technical innovation, or procurement, a reflective review of these standards is crucial. This article provides both detailed summaries and comparative analysis of each publication, helping you to identify the most relevant changes and action points for your organization.

Monthly Overview: September 2025

September 2025 proved to be a significant month in Electrical Engineering, marked by the convergence of digitalization, electrification, and interoperability. The standards published addressed:

• The practical rollout of dynamic charging technologies for road vehicles,
• Tighter controls and documentation for repair in explosion-prone settings,
• Secure, multi-directional grid interactions with distributed energy sources,
• Data model standardization for EV charging station integration,
• And the formalization of Building Information Modelling (BIM) for switchgear assemblies.

This combination reflected the sector's accelerating shift toward electrified transportation, secure high-performance power conversion, and the digitization of infrastructure-related data. Compared to prior months—traditionally focused on incremental revisions or niche updates—September 2025’s standards collectively signaled a stronger alignment with decarbonization, digital transformation, and requirements for seamless integration across the power and mobility value chains.

Standards Published This Month

CLC/TS 50740:2025 – Technical Specification for Ground-Based Feeding Systems for Dynamic Electric Road Charging Infrastructure on Road Vehicles in Operation

Full Title: Technical Specification for ground-based feeding systems for dynamic electric road charging infrastructure on road vehicles in operation

This technical specification provides a comprehensive framework for ground-based feeding systems, a core technology for Electric Road Systems (ERS) enabling dynamic charging of vehicles while in motion or at rest. The standard covers only the infrastructure component (conducted feeding systems) for all ERS-compatible road vehicles except motorcycles, tricycles, quadricycles, and those only using plug-in solutions or inductive/overhead charging.

Key focus areas include:

• Interface definitions between the feeding system, electrical grid, and on-road energy collector devices (CCDs)
• Electrical safety requirements, stray current protections, and risk mitigation for DC traction supply
• Environmental operating conditions for installed infrastructure
• Validation and maintenance procedures, aiming to ensure operational safety, reliability, and interoperability

The specification is particularly significant for stakeholders involved in the planning, deployment, and maintenance of ERS corridors for heavy and light vehicles, including smart city planners, national infrastructure authorities, transportation agencies, automotive OEMs, and system integrators. Compliance will support international harmonization, facilitate large-scale electrification of fleets, and accelerate the shift from fossil fuel-based to electrified transport systems.

Key highlights:

• Enables interoperability by standardizing infrastructure-vehicle interfaces
• Addresses safety, EMC, and environmental stress factors for real-world installations
• Directs industry focus towards scalable, interoperable, and safe ERS deployment

Access the full standard:View CLC/TS 50740:2025 on iTeh Standards

EN IEC 60079-19:2025 – Explosive Atmospheres – Part 19: Equipment Repair, Overhaul and Reclamation

Full Title: Explosive atmospheres – Part 19: Equipment repair, overhaul and reclamation

Serving as Edition 5 and an update to the 2019 version, this standard is foundational for service facilities responsible for the repair, overhaul, and reclamation of equipment designed for use in hazardous (explosive) environments. The document details quality and documentation requirements, permissible repair practices, and post-repair evaluation to guarantee equipment remains compliant with relevant Ex standards upon return to service.

Notably, it applies only to the repair/overhaul of Ex Equipment for hazardous areas and does not address new manufacture, installation, or Ex component repair. The technical revision has clarified differentiations among overhauls, repairs, and reclamations, with new instructions on marking, traceability, and the provision of supporting documentation for each intervention.

Primary users include Ex service shops, maintenance contractors in petrochemical plants, oil & gas operations, chemical plants, and any industrial facility with ATEX/IECEx obligations. Ensuring procedures align with this standard reduces the risk of ignition sources due to improper repairs, supporting both operational continuity and regulatory compliance.

Key highlights:

• Additional requirements for documentation, evaluation, and marking
• Clearer guidance on alteration, modification, and use of spare parts
• New recommendations for legacy equipment repairs and traceability

Access the full standard:View EN IEC 60079-19:2025 on iTeh Standards

EN IEC 62909-1:2025 – Bi-directional Grid-Connected Power Converters – Part 1: General and Safety Requirements

Full Title: Bi-directional grid-connected power converters – Part 1: General and safety requirements

This standard, now in its second edition, defines the general and safety requirements for bi-directional grid-connected power converters (GCPCs). These devices, which are essential to modern distributed energy systems, enable two-way energy transfer between grids and connected DC power ports (e.g., battery energy storage systems, photovoltaic modules, and other distributed energy resources), with system voltages up to 1000 V AC or 1500 V DC.

The revision has clarified the scope—ensuring clear boundaries with standards for UPS systems, PV inverters, and EV charging-point equipment—and expanded the focus on fault tolerance, protection, operational modes, and user information/marking. The standard is pivotal for energy management system suppliers, inverter OEMs, industrial automation engineers, and project developers designing or integrating dynamic grid-interactive energy solutions.

Key highlights:

• Enhanced guidance on interface requirements and safety performance
• Clearer differentiation from similar but distinct product categories (e.g., UPS, PV inverters, EV chargers)
• Focused recommendations for safe bi-directional energy flow and interoperability

Access the full standard:View EN IEC 62909-1:2025 on iTeh Standards

EN IEC 63380-2:2025 – Standard Interface for Connecting Charging Stations to Local Energy Management Systems – Part 2: Specific Data Model Mapping

Full Title: Standard interface for connecting charging stations to local energy management systems – Part 2: Specific data model mapping

As smart energy management and scalable e-mobility grow, secure and reliable data exchange between vehicle charging infrastructure and building or site energy systems becomes critical. This standard defines the specific data model mapping (notably SPINE and ECHONET Lite Resources) for secure communication between local energy management systems (EMS) and EV charging station controllers, based on use cases previously established in Part 1.

The document ensures that various system actors (devices, EMS, resource managers) can clearly interpret and act on exchanged messages—covering everything from charging parameters and identification to load control, energy curves, and incentive tables. The standard will benefit charging station manufacturers, EMS software providers, facility managers, electric utility operators, and smart building integrators looking to implement interoperable and future-proofed energy/charging solutions.

Key highlights:

• Unified data mappings supporting integration of charging and energy management platforms
• Facilitates automated load management, demand response, and optimized charging profiles
• Supports cybersecurity and interoperability, paving the way for advanced smart charging ecosystems

Access the full standard:View EN IEC 63380-2:2025 on iTeh Standards

IEC 62683-2-2:2025 – Low-voltage Switchgear and Controlgear – Product Data and Properties for Information Exchange – Engineering Data – Part 2-2: Switchgear and Controlgear Assembly Objects for Building Information Modelling

Full Title: Low-voltage switchgear and controlgear – Product data and properties for information exchange – Engineering data – Part 2-2: Switchgear and controlgear assembly objects for building information modelling

With the continued digital transformation of the built environment, this standard establishes standardized data models and attributes for low-voltage switchgear and controlgear assemblies in Building Information Modelling (BIM) workflows. It covers assemblies under the IEC 61439 series, enhancing the digital representation and data exchange of such assemblies for both construction and operational phases of a building’s lifecycle.

The models facilitate easier sharing, integration, and simulation of electrical system data across various design, construction, and facility management software platforms, in line with global BIM and data dictionary standards (IFC, bSDD, IDS). This publication is especially important for construction engineers, electrical designers, BIM managers, and digital project delivery consultants.

Key highlights:

• Defines standardized BIM object models for all low-voltage assembly types
• Aligns digital asset data with prevailing international BIM standards and dictionaries
• Enhances multi-disciplinary collaboration and lifecycle data management for buildings

Access the full standard:View IEC 62683-2-2:2025 on iTeh Standards

Common Themes and Industry Trends

September 2025’s Electrical Engineering standards uniquely intersected the sectors of electrified mobility, digital energy management, and data-driven construction. Several clear patterns emerged:

• Digital Interoperability: Most standards published addressed cross-system integration, especially through data model unification (EN IEC 63380-2, IEC 62683-2-2). Digitalization is now the backbone of both infrastructure and operations.
• E-Mobility and Decarbonization: The increased focus on ERS (CLC/TS 50740) reflects industry momentum toward electrification of transport and grid-interactive energy models. Standards are supporting scalable, safe, and harmonized deployment.
• Lifecycle Management and Safety: From repair and overhaul in hazardous environments to lifecycle data modeling for switchgear assemblies, attention is shifting to complete, transparent, and safe management throughout the asset life.
• Cybersecurity and Data Integrity: Secure information exchange (notably between charging systems and EMS in EN IEC 63380-2) is now foundational, addressing both operational resilience and compliance with evolving data protection laws.

The overall direction underscores a maturing regulatory ecosystem where electrified, connected, and digitized solutions are converging—and where standards are facilitating both innovation and market stability.

Compliance and Implementation Considerations

Organizations impacted by these September 2025 publications should consider the following practical steps:

• Gap Assessments: Conduct technical and procedural gap analyses against new or revised requirements, especially around digital interfaces (e.g., EMS/charging, BIM data).
• Training & Documentation: Ensure technical, maintenance, and compliance staff are updated on substantive changes (notably EN IEC 60079-19’s revised repair rules and CLC/TS 50740’s safety criteria).
• Project Planning: For new infrastructure or retrofits, embed requirements for ERS, grid converters, and BIM-ready switchgear into procurement and design specifications early.
• Vendor and Supply-Chain Engagement: Communicate evolving requirements to suppliers and service providers, particularly with new data exchange or installation/maintenance standards.
• Implementation Timeline: Monitor national adoption dates and transition windows given in each standard’s forewords; use these as the basis for compliance timelines and action plans.
• Access to Standards: Leverage authoritative platforms like iTeh Standards for up-to-date documentation, interpretation, and support materials.

Conclusion: Key Takeaways from September 2025

The September 2025 cycle represented an inflection point in Electrical Engineering standardization toward a smarter, safer, and more interoperable future. The standards addressed in this review:

• Marked progress in electrified transport and dynamic charging infrastructures,
• Delivered updated methodologies for safe repair and overhaul in hazardous atmospheres,
• Clarified and enhanced safety/performance baselines for grid-interactive power converters,
• Advanced data exchange capabilities for integrated eMobility and energy management,
• And brought electrical system BIM modeling up to a true multi-disciplinary digital standard.

For professionals across engineering, compliance, and asset management, close study of these standards will be a catalyst for operational efficiency, digital transformation, and futureproof system design. To stay competitive and compliant, it is advisable to review the full text of each standard and begin cross-disciplinary planning for implementation.

Explore the full standards and accompanying resources at iTeh Standards to ensure your organization leads in regulatory adherence and technological innovation.