CROSS-STANDARD public interest · Solar PV inverter
China-to-Slovakia Solar PV Inverter Compliance Gap Matrix
AI-compiled from official public sources — cross-checked by multiple AI models, not human-verified. Informational only; see disclaimer. Public-interest, source-linked comparison of common China solar PV inverter documentation against Slovakia (ÚNMS/ÚRSO/SEPS) expectations: ÚNMS-adopted standards routes, ÚRSO and SEPS grid-connection processes, CE-marking-aligned requirements, IEC 62109, IEC 62116, IEC 61727, IEC 62920 and IEC 61000 evidence, with 230/400 V 50 Hz grid settings — versus China GB/T 37408, NB/T 32004, and GB/T 19964 baselines.
Dataset 2026-06-11
Last verified 2026-06-15
3 rows
GAP MATRIX
Compliance Gap Matrix
| Compliance item | Common China baseline | Slovakia (ÚNMS / ÚRSO / SEPS) | Gap / action | Source + verification date |
|---|---|---|---|---|
| EMC — IEC 62920 and IEC 61000 Evidence for Slovakia PV Inverters | Chinese PV inverter EMC evidence commonly relies on GB/T 37408-2021 and related domestic EMC test reports from CNAS-accredited laboratories. These reports can be useful engineering background but are not automatically equivalent to IEC 62920 or the IEC 61000-series evidence requested by a Slovak project owner, ÚNMS conformity route, ÚRSO review, or SEPS/DSO grid-connection process. China test conditions are normally aligned with the China 220/380 V, 50 Hz baseline, while Slovakia uses 230/400 V at the same frequency.GB/T 37408-2021 — 光伏并网逆变器技术要求 (Technical Requirements for Photovoltaic Grid-Connected Inverters) CNAS-accredited domestic EMC test reports under China standard scopes |
Slovakia PV inverter EMC expectations should be prepared on an IEC/EN basis because ÚNMS SR is the national standards body and project specifications for grid-connected PV commonly reference IEC-family inverter evidence adopted as STN standards. The practical EMC package should include IEC 62920 for PV power conversion equipment and applicable IEC 61000-series evidence for emissions, immunity, harmonics, surge, voltage dips, and power quality. For SEPS or DSO grid-connected projects under ÚRSO oversight, harmonic and conducted-emission evidence should be tied to the actual inverter model, rating, and configuration. Because Slovakia uses a 230/400 V, 50 Hz grid, EMC and harmonic results obtained only under China 220/380 V conditions should be reviewed for applicability before submission. Slovak-language project documentation is commonly expected for building and grid-connection permits.IEC 62920 — Photovoltaic power generating systems — EMC requirements and test methods for power conversion equipment IEC 61000 series — Electromagnetic compatibility test, immunity, harmonic, surge, voltage-dip, and power-quality standards as applicable to the inverter configuration ÚNMS SR standards adoption and STN project specification requirements where applicable SEPS and DSO grid-connection review requirements for power quality and harmonic performance under ÚRSO framework |
Gap: China-only EMC certificates under GB/T 37408 do not automatically satisfy Slovak IEC-based project expectations. Exporters should obtain IEC 62920 and applicable IEC 61000-series reports for the specific model or family, confirm whether harmonics and conducted-emission results remain valid at 230/400 V, and provide surge, earthing, shielding, and enclosure documentation. Where SEPS/DSO or the project owner specifies harmonic limits or power-quality measurements, test reports should be mapped clause-by-clause to that requirement. Slovak or EU-official-language translations of technical evidence may be required for permit submissions.[INFORMATIONAL] Treat Slovak PV inverter EMC as an IEC evidence package, not a China GB/T certificate transfer. Prepare IEC 62920 and applicable IEC 61000-series reports for the exact inverter model, review harmonic and EMC applicability at Slovakia's 230/400 V 50 Hz grid voltage, and confirm any ÚNMS, ÚRSO, SEPS, DSO, or project-owner EMC requirements before shipment. | Slovak Office of Standards, Metrology and Testing (ÚNMS SR)2026-06-15 · reference |
| SEPS / DSO Grid-Connection Review — IEC 62116, IEC 61727, and 230/400 V 50 Hz Settings | Chinese PV inverter grid-connection evidence commonly includes GB/T 19964-2024 for PV power station connection, NB/T 32004 for grid-connected inverter technical specifications, GB/T 37408 for PV grid-connected inverter requirements, and domestic anti-islanding test results. These documents are built around China grid conditions and domestic acceptance procedures. China's low-voltage baseline is 220/380 V at 50 Hz, not Slovakia's 230/400 V at 50 Hz. Chinese grid certificates and factory firmware settings do not automatically transfer to SEPS/DSO acceptance or ÚRSO project review in Slovakia.GB/T 19964-2024 — 光伏发电站接入电力系统技术规定 (Technical Requirements for Connecting Photovoltaic Power Station to Power System) NB/T 32004-2018 — 光伏并网逆变器技术规范 (Technical Specification for Photovoltaic Grid-Connected Inverters) GB/T 37408-2021 — 光伏并网逆变器技术要求 (Technical Requirements for Photovoltaic Grid-Connected Inverters) GB/T 156 — 标准电压 (Standard voltages) |
Grid-connected solar PV inverters in Slovakia should be treated as project-level grid-connection equipment subject to technical review by the relevant distribution system operator (DSO) and, for large installations, SEPS (Slovak Electricity Transmission System), with sector oversight by ÚRSO (Regulatory Office for Network Industries). The practical IEC evidence package normally includes IEC 62116 anti-islanding and IEC 61727 utility-interface compliance, with firmware protection thresholds, reconnection delay, voltage windows, and frequency windows validated for Slovakia's 230/400 V, 50 Hz low-voltage grid. Slovakia uses the same 50 Hz frequency as China, but the nominal voltage differs: Slovakia is 230 V single-phase and 400 V three-phase, while China is 220/380 V under GB/T 156. EU Regulation (EU) 2016/631 (Requirements for Generators, RfG) sets binding grid-connection requirements for power-generating modules above member-state-defined thresholds.IEC 62116 — Utility-interconnected photovoltaic inverters — Test procedure of islanding prevention measures IEC 61727 — Photovoltaic systems — Characteristics of the utility interface Commission Regulation (EU) 2016/631 — Requirements for Generators (RfG) EN 50549-1:2019 / EN 50549-2:2019 (CENELEC — grid-connection of generating plants) SEPS grid-connection technical requirements — https://www.sepsas.sk ÚRSO electricity-sector regulatory framework — https://www.urso.gov.sk Slovakia low-voltage grid context — 230 V single-phase / 400 V three-phase, 50 Hz |
Gap: China GB/T and NB/T grid-connection evidence is not a substitute for Slovak SEPS/DSO project acceptance or ÚRSO review. Exporters should prepare IEC 62116 anti-islanding evidence, IEC 61727 utility-interface evidence, a Slovakia-specific firmware settings file, and commissioning records for 230/400 V at 50 Hz. Do not describe Slovakia voltage as matching China: only the 50 Hz frequency matches, while nominal voltage differs from China's 220/380 V. EU RfG Regulation (EU) 2016/631 applies directly in Slovakia for installations above the member-state thresholds. Slovak or EU-official-language translations of technical documentation may be required for permit submissions.[INFORMATIONAL] Chinese GB/T grid-connection documents do not automatically satisfy Slovak SEPS/DSO grid-connection review. Prepare IEC 62116 and IEC 61727 evidence, re-parameterise inverter firmware for Slovakia's 230/400 V at 50 Hz grid, and ensure EU RfG (EU) 2016/631 compliance for installations above Slovak thresholds. Verify current DSO, SEPS, and ÚRSO project requirements directly before shipment or commissioning. | SEPS (Slovak Electricity Transmission System)2026-06-15 · reference |
| IEC 62109-1 / IEC 62109-2 Safety Evidence and CE Marking for Slovakia PV Inverters | China safety documentation for PV grid-connected inverters commonly uses GB/T 37408-2021, NB/T 32004, domestic CQC or CGC voluntary certification, and CNAS-accredited laboratory reports. These documents are useful for supplier qualification but are not automatically accepted as IEC 62109-1/-2 evidence for Slovakia projects, and do not constitute LVD CE marking compliance. Chinese safety reports may also be based on China-rated configurations, labels, manuals, and 220/380 V assumptions, while Slovakia project files must reflect 230/400 V, 50 Hz installation conditions.GB/T 37408-2021 — 光伏并网逆变器技术要求 (Technical Requirements for Photovoltaic Grid-Connected Inverters) NB/T 32004-2018 — 光伏并网逆变器技术规范 (Technical Specification for Photovoltaic Grid-Connected Inverters) CQC / CGC voluntary certification programmes for China domestic PV inverter safety and performance |
For Slovakia solar PV projects, inverter safety documentation should be prepared around IEC 62109-1 and IEC 62109-2 type-test evidence for the exact inverter model or family. ÚNMS SR is the national standards body and market surveillance authority, ÚRSO oversees the energy sector, and SEPS/DSO controls the practical grid-connection interface, so project submissions should include accredited IEC safety reports, installation manuals in Slovak or EU official language, ratings, nameplate data, protection-device coordination, earthing instructions, and environmental limits. CE marking under LVD 2014/35/EU is mandatory for market placement in Slovakia. Safety files should reflect 230/400 V, 50 Hz installation conditions for the Slovak grid. Inverters intended for outdoor or rooftop deployment in Slovakia's continental climate (hot summers, cold winters) should document relevant temperature and humidity derating assumptions.IEC 62109-1 — Safety of power converters for use in photovoltaic power systems — Part 1: General requirements IEC 62109-2 — Safety of power converters for use in photovoltaic power systems — Part 2: Particular requirements for inverters LVD 2014/35/EU — Low Voltage Directive (mandatory CE marking for EU/Slovak market) ÚNMS SR standards adoption and STN conformity expectations where applicable ÚRSO and SEPS/DSO project documentation requirements for grid-connected solar PV equipment |
Gap: A China-only GB/T 37408 or NB/T 32004 safety file does not automatically satisfy Slovak IEC safety expectations or LVD CE marking requirements. Exporters must: (1) provide IEC 62109-1/-2 type-test reports for the supplied model or model family from an EU-recognised accredited laboratory; (2) confirm that labels and manuals match the Slovak configuration including Slovak or EU-official-language text; (3) document protection coordination and earthing; (4) add environmental evidence for temperature range and humidity relevant to Slovakia's continental climate. Any changes to firmware settings, surge protection, or nameplate ratings for Slovakia require updated safety documentation. An EU Declaration of Conformity and CE marking are mandatory.[INFORMATIONAL] Do not rely on China GB/T or NB/T inverter safety files alone for Slovak PV projects. CE marking under LVD 2014/35/EU is mandatory for the Slovak market. Prepare IEC 62109-1/-2 type-test evidence for the exact model, align labels and manuals to Slovakia's 230/400 V 50 Hz configuration with Slovak or EU-official-language text, and document temperature and humidity derating for continental climate deployment. Confirm current ÚNMS, ÚRSO, SEPS, DSO, and project-owner safety requirements before shipment. | Slovak Office of Standards, Metrology and Testing (ÚNMS SR)2026-06-15 · reference |
E-E-A-T
Named editorial review
Pending named reviewer
Official regulator, standards body, notified body, customs, or primary legal source preferred. Local PDFs are not accepted.
Editorial controlsRows must include publisher, official URL, access date, verification flag, and last_verified before human_reviewed can be true.
SOURCES
Official-source register.
- Slovak Office of Standards, Metrology and Testing (ÚNMS SR) · accessed 2026-06-15 · reference · used in 2 rows
- SEPS (Slovak Electricity Transmission System) · accessed 2026-06-15 · reference · used in 1 rows