CROSS-STANDARD public interest · Solar PV inverter
China-to-Croatia 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 Croatia (HZN/HERA/HOPS) expectations: HZN-adopted standards routes, HERA and HOPS/HEP-ODS 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 and Rijeka as the main port — 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 | Croatia (HZN / HERA / HOPS) | Gap / action | Source + verification date |
|---|---|---|---|---|
| EMC — IEC 62920 and IEC 61000 Evidence for Croatian 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 Croatia project owner, HZN conformity route, HERA review, or HOPS/HEP-ODS grid-connection process. China test conditions are normally aligned with the China 220/380 V, 50 Hz baseline, while Croatia 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 |
Croatia PV inverter EMC expectations should be prepared on an IEC basis because HZN is the national standards body and project specifications for grid-connected PV commonly reference IEC-family inverter evidence. 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 HOPS/HEP-ODS grid-connected projects, harmonic and conducted-emission evidence should be tied to the actual inverter model, rating, and configuration. Because Croatia 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.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 HZN standards adoption and project specification requirements where applicable HOPS/HEP-ODS grid-connection review requirements for power quality and harmonic performance |
Gap: China-only EMC certificates under GB/T 37408 do not automatically satisfy Croatia 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 suitable for the installed site. Where HOPS/HEP-ODS or the project owner specifies harmonic limits or power-quality measurements, test reports should be mapped clause-by-clause to that requirement.[INFORMATIONAL] Treat Croatian 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 Croatia's 230/400 V 50 Hz grid voltage, and confirm any HZN, HERA, HOPS/HEP-ODS, or project-owner EMC requirements before shipment. | Croatian Standards Institute (HZN)2026-06-15 · reference |
| HOPS/HEP-ODS 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 Croatia's 230/400 V at 50 Hz. Chinese grid certificates and factory firmware settings do not automatically transfer to HOPS/HEP-ODS acceptance or HERA project review in Croatia.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 Croatia should be treated as project-level grid-connection equipment subject to HOPS (Croatian transmission system operator) and HEP-ODS (distribution network operator) technical review and HERA (Croatian Energy Regulatory Agency) energy-sector oversight. 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 Croatia's 230/400 V, 50 Hz low-voltage grid. Croatia uses the same 50 Hz frequency as China, but the nominal voltage differs: Croatia is 230 V single-phase and 400 V three-phase, while China is 220/380 V under GB/T 156. Croatian project files should document protection-threshold settings, reconnection timing, and commissioning records for the specific HOPS or HEP-ODS connection point.IEC 62116 — Utility-interconnected photovoltaic inverters — Test procedure of islanding prevention measures IEC 61727 — Photovoltaic systems — Characteristics of the utility interface HOPS grid-connection and commissioning requirements for the relevant installation HEP-ODS distribution-level connection requirements HERA electricity-sector approval or oversight requirements where applicable Croatia 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 Croatia HOPS/HEP-ODS project acceptance. Exporters should prepare IEC 62116 anti-islanding evidence, IEC 61727 utility-interface evidence, a Croatia-specific settings file, and commissioning records for 230/400 V at 50 Hz. Do not describe Croatia voltage as matching China: only the 50 Hz frequency matches, while nominal voltage differs from China's 220/380 V. Project files should document protection-threshold settings and reconnection timing aligned to Croatia's EN 50549-1/-2 implementation and HOPS/HEP-ODS grid-connection requirements.[INFORMATIONAL] Chinese GB/T grid-connection documents do not automatically satisfy Croatia HOPS/HEP-ODS grid-connection review. Prepare IEC 62116 and IEC 61727 evidence, re-parameterise inverter firmware for Croatia's 230/400 V at 50 Hz grid, and verify current HOPS, HEP-ODS, and HERA project requirements directly before shipment or commissioning. | HOPS (Croatian Transmission System Operator)2026-06-15 · reference |
| IEC 62109-1 / IEC 62109-2 Safety Evidence for Croatian 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 Croatia projects. Chinese safety reports may also be based on China-rated configurations, labels, manuals, surge protection, and 220/380 V assumptions, while Croatia 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 Croatia 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. HZN is the national standards body, HERA oversees the energy sector, and HOPS/HEP-ODS controls the practical grid-connection interface, so project submissions should include accredited IEC safety reports, installation manuals, ratings, nameplate data, protection-device coordination, earthing instructions, and environmental limits. Croatian project files should document installation conditions including enclosure ingress protection, corrosion-resistant materials, terminal temperature rise, and ventilation for the specific site environment.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 HZN standards adoption and conformity expectations where applicable HERA and HOPS/HEP-ODS project documentation requirements for grid-connected solar PV equipment Project environmental requirements for ingress protection, corrosion resistance, and thermal derating |
Gap: A China-only GB/T 37408 or NB/T 32004 safety file does not automatically satisfy Croatia IEC safety expectations. Exporters should provide IEC 62109-1/-2 type-test reports for the supplied model or model family, confirm that labels and manuals match the Croatia configuration, document protection coordination and earthing, and add environmental evidence for ingress protection, humidity, ventilation, and thermal derating as appropriate for the project site. Any changes to enclosure, terminals, firmware settings, surge protection, or nameplate ratings for Croatia can require updated safety documentation.[INFORMATIONAL] Do not rely on China GB/T or NB/T inverter safety files alone for Croatian PV projects. Prepare IEC 62109-1/-2 type-test evidence for the exact model, align labels and manuals to Croatia's 230/400 V 50 Hz configuration, and document ingress-protection, corrosion, and thermal-derating controls for the project site. Confirm current HZN, HERA, HOPS/HEP-ODS, and project-owner safety requirements before shipment. | Croatian Standards Institute (HZN)2026-06-15 · reference |
E-E-A-T
Named editorial review
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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.
- Croatian Standards Institute (HZN) · accessed 2026-06-15 · reference · used in 2 rows
- HOPS (Croatian Transmission System Operator) · accessed 2026-06-15 · reference · used in 1 rows