CROSS-STANDARD public interest · Solar PV inverter

China-to-Cape Verde 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 Cape Verde IGQPI standards practice, ARME energy-sector regulation, ELECTRA grid-connection review, IEC 62109 safety evidence, IEC 62116 anti-islanding, IEC 61727 interconnection, IEC 62920 and IEC 61000 EMC evidence, 50 Hz 230/400 V island-grid settings, Portuguese-language IEC/EU legacy expectations, and coastal salt-mist derating — versus China GB/T 37408, NB/T 32004, and GB/T 19964 baselines.

Dataset 2026-06-11 Last verified 2026-06-14 4 rows

Compliance Gap Matrix

Gap matrix
Compliance item Common China baseline Cape Verde (IGQPI / ARME / ELECTRA) Gap / action Source + verification date
EMC — IEC 62920 and IEC 61000 Evidence for Cape Verde PV Inverters Chinese PV inverter EMC evidence is commonly based on GB/T 37408-2021, NB/T 32004, and related GB/T or IEC-derived EMC methods tested by Chinese laboratories. These documents can be useful technical background, but they are not automatically accepted in Cape Verde as IEC 62920 or IEC 61000 evidence unless the reports explicitly cover the same IEC clauses, model configuration, and test conditions required by the project reviewer.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 — 光伏并网逆变器技术规范 (Technical Specification for Photovoltaic Grid-Connected Inverters)
Cape Verde PV inverter submissions should be prepared with IEC/EU-style EMC evidence suitable for IGQPI standards practice, ARME/ELECTRA project review, and EPC or lender procurement. IEC 62920 is the dedicated EMC standard for PV power conversion equipment, while IEC 61000-series tests address emissions, immunity, harmonics, and flicker. Because Cape Verde's grid voltage is 230/400 V at 50 Hz, EMC and harmonic evidence should identify the tested voltage, phase configuration, firmware mode, filter configuration, and model rating. China 220/380 V test conditions should not be presented as identical to Cape Verde voltage conditions.IEC 62920 — Photovoltaic power generating systems — EMC requirements and test methods for power conversion equipment
IEC 61000 series — Electromagnetic compatibility emission, immunity, harmonic, and flicker test methods
IGQPI standards and conformity-assessment practice for Cape Verde
ARME/ELECTRA project review expectations for utility-connected PV equipment
Gap: provide IEC 62920 and applicable IEC 61000-series EMC reports for the supplied inverter model, including the tested AC voltage and phase configuration. If the existing China EMC file was tested under 220/380 V settings, ask the Cape Verde EPC, ELECTRA interface reviewer, or lender engineer whether 230/400 V retesting, engineering justification, or a configuration statement is required.[INFORMATIONAL] Do not rely on China-only GB/T 37408 or NB/T 32004 EMC certificates as a complete Cape Verde EMC package. Prepare IEC 62920 and applicable IEC 61000 evidence for the exact model and configuration, and disclose whether testing was at China 220/380 V or Cape Verde 230/400 V. IGQPI (Instituto de Gestao da Qualidade e da Propriedade Intelectual)2026-06-14 · unverified
ELECTRA / Cape Verde Grid Connection — IEC 62116, IEC 61727, and 50 Hz / 230 V / 400 V Settings Chinese PV inverter grid evidence commonly includes GB/T 19964-2024, NB/T 32004, and GB/T 37408-2021. These documents are prepared for Chinese grid and certification contexts and are not automatically accepted by ARME, ELECTRA, project owners, or lenders in Cape Verde. The key parameter difference is voltage: China nominal low-voltage service is 220/380 V at 50 Hz, whereas Cape Verde uses 230/400 V at 50 Hz. A China country-code firmware profile or Chinese grid-certificate package should not be used as evidence that protection settings are correct for Cape Verde.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 — 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)
Cape Verde grid-tied PV projects are reviewed in the context of ARME energy-sector regulation and ELECTRA distribution or island-grid connection requirements. In practice, project documentation for PV inverters should be prepared around internationally recognised IEC evidence, including IEC 62116 anti-islanding and IEC 61727 utility-interface requirements, with protection settings validated for Cape Verde's 50 Hz, 230/400 V low-voltage system. Cape Verde shares China's 50 Hz frequency, but it does not share China's nominal voltage: China is 220/380 V while Cape Verde is 230/400 V. Firmware country settings, over/under-voltage thresholds, frequency ride-through windows, reconnection delays, and anti-islanding trip timing should therefore be documented for the Cape Verde grid profile.IEC 62116 — Utility-interconnected photovoltaic inverters — Test procedure of islanding prevention measures
IEC 61727 — Photovoltaic systems — Characteristics of the utility interface
ARME energy-sector regulatory framework for electricity activities in Cape Verde
ELECTRA distribution and island-grid connection review for grid-tied PV projects
Gap: Chinese grid-connection evidence does not transfer automatically to Cape Verde. Exporters should provide IEC 62116 anti-islanding reports, IEC 61727 utility-interface evidence, model-specific firmware settings, and a Cape Verde 230/400 V at 50 Hz parameter sheet for the supplied inverter. Where prior tests were performed under Chinese 220/380 V conditions, confirm with the EPC, ELECTRA interface engineer, and ARME/project reviewer whether retesting or documented re-parameterisation is required.[INFORMATIONAL] Treat Cape Verde grid connection as a separate ARME/ELECTRA project review, not a China GB/T certificate transfer. Validate IEC 62116 and IEC 61727 evidence and set firmware for Cape Verde's 230/400 V at 50 Hz grid. Do not state that Cape Verde voltage matches China: only frequency matches; voltage differs from China's 220/380 V. ARME (Agencia Reguladora Multissetorial da Economia)2026-06-14 · unverified
Cape Verde Island Renewable Projects — ARME Authorisation, ELECTRA Interface, and Coastal Derating Chinese inverter packages often include domestic grid certificates, product catalogues, and standard factory datasheets. Those documents may not include Portuguese-language instructions, Cape Verde site derating, salt-mist corrosion evidence, or weak/island-grid commissioning settings. China-side certification under GB/T 37408-2021, NB/T 32004, or GB/T 19964-2024 does not demonstrate compliance with Cape Verde project authorisation, ELECTRA interface review, or island-site environmental requirements unless supplemented.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 — 光伏并网逆变器技术规范 (Technical Specification for Photovoltaic Grid-Connected Inverters)
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)
Cape Verde is a small-island developing state with high renewable-energy penetration targets and islanded or weak-grid operating conditions. For grid-tied solar projects, inverter documentation should address project authorisation, utility interface, active/reactive power control, frequency and voltage ride-through expectations requested by the EPC or utility, Portuguese-language manuals, and environmental suitability for coastal salt-mist, humidity, heat, and logistics-constrained maintenance. Even where the underlying electrical standard is IEC-based, the project package normally must show the exact inverter configuration, derating assumptions, enclosure/corrosion protection, and commissioning procedure for the Cape Verde island site.ARME electricity-sector authorisation and tariff/regulatory oversight for Cape Verde energy projects
ELECTRA utility interface and commissioning review for grid-connected installations
IEC 61727 and IEC 62116 as typical IEC evidence for PV utility interface and anti-islanding
IEC 60068 / IEC 61701 environmental evidence where salt-mist and coastal corrosion exposure is specified by the project
Gap: the Cape Verde project package should add local project authorisation references, ELECTRA grid-interface settings, Portuguese-language user and installer documents, salt-mist/coastal-corrosion evidence where exposed sites require it, and thermal derating calculations for island conditions. China-only catalogues and grid certificates should be treated as supporting documents, not as a complete Cape Verde compliance file.[INFORMATIONAL] For Cape Verde, add project-specific ARME/ELECTRA interface documentation and island/coastal derating evidence to the IEC test file. The market's high-renewable, island-grid context makes firmware configuration, salt-mist exposure, and maintenance assumptions commercially important even when the electrical test standards are familiar IEC standards. ELECTRA — Empresa de Electricidade e Agua, SARL2026-06-14 · unverified
IEC 62109-1 / IEC 62109-2 Safety Evidence and Coastal Suitability for Cape Verde PV Inverters China-side safety documentation for PV inverters often relies on GB/T 37408-2021, NB/T 32004, factory declarations, and domestic voluntary certificates. These documents may cover important safety concepts, but they do not automatically demonstrate IEC 62109-1/-2 conformity for Cape Verde project review. They also may not cover the coastal salt-mist, enclosure corrosion, Portuguese documentation, and island maintenance assumptions required by Cape Verde projects.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 — 光伏并网逆变器技术规范 (Technical Specification for Photovoltaic Grid-Connected Inverters)
Cape Verde solar PV inverter safety files should be prepared around IEC 62109-1 and IEC 62109-2 type-test evidence for power converters used in photovoltaic systems. For grid-connected island projects, EPC contractors, ARME/ELECTRA reviewers, and lenders may also request environmental evidence for coastal exposure, including salt-mist or corrosion resistance, enclosure rating, thermal derating, and installation/maintenance instructions in Portuguese. Safety documentation should identify the exact model family, power rating, firmware/hardware revision, protection class, isolation design, enclosure rating, and any limits on installation near marine environments.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
IEC 61701 or IEC 60068-series environmental testing where salt-mist or coastal corrosion exposure is specified
IGQPI standards practice and ARME/ELECTRA project review expectations
Gap: supplement China domestic safety certificates with IEC 62109-1/-2 type-test reports for the exact inverter family, plus site-specific environmental evidence where coastal exposure or high humidity is relevant. Provide Portuguese-language installation, operation, and maintenance instructions and document any derating or spacing requirements for hot, humid, salt-laden island sites.[INFORMATIONAL] A China-only GB/T or NB/T safety file is not a complete Cape Verde PV inverter safety package. Prepare IEC 62109-1/-2 evidence, Portuguese installation documents, and coastal salt-mist or derating support where the island site requires it. Confirm model-family coverage and environmental assumptions with the Cape Verde project reviewer before shipment. IGQPI (Instituto de Gestao da Qualidade e da Propriedade Intelectual)2026-06-14 · unverified

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