EMC — IEC 62920 and IEC 61000-Series Evidence for Grenada PV Inverter Projects?

Do not rely on a China GB/T 37408 EMC certificate alone for Grenada PV inverter submissions. Prepare IEC 62920 and applicable IEC 61000-series EMC evidence for the specific inverter model and confirm whether 230/400 V Grenada operating conditions require retesting compared with China 220/380 V evidence. Verify the current GDBS, PURC, GRENLEC, and project-owner EMC expectations before shipment.

GRENLEC / PURC Grid Connection — IEC 62116, IEC 61727, and 50 Hz / 230 V / 400 V Settings?

Treat Grenada grid connection as a separate GRENLEC/PURC review, not as an extension of Chinese GB/T grid approval. Prepare IEC 62116 and IEC 61727 evidence and validate firmware for Grenada's 230/400 V at 50 Hz grid. China and Grenada share 50 Hz frequency, but their nominal voltages differ, so China 220/380 V settings should not be represented as directly matching Grenada requirements.

IEC 62109 Safety Evidence and Caribbean Environmental Derating?

Plan for IEC 62109-1/-2 safety documentation and Grenada-specific environmental derating evidence instead of relying on China GB/T 37408 files alone. The inverter package should address 230/400 V at 50 Hz service, hurricane exposure, humidity, salt-mist corrosion, surge protection, and St George's import traceability. Verify current GDBS, PURC, GRENLEC, and project-owner requirements before shipment or installation.

CROSS-STANDARD public interest · Solar PV inverter

China-to-Grenada Solar PV Inverter Compliance Gap Matrix

Name: China-to-Grenada Solar PV Inverter Compliance Gap Matrix
Creator: Cross-Standard
License: https://creativecommons.org/licenses/by/4.0/

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 Grenada GDBS standards context, PURC and GRENLEC grid-connection review, IEC 62109 safety evidence, IEC 62116 and IEC 61727 grid-interface evidence, IEC 61000 and IEC 62920 EMC evidence, 50 Hz 230/400 V grid settings, hurricane and salt-mist derating, and St George's sea-freight documentation — versus China GB/T 37408, NB/T 32004, and GB/T 19964 baselines.

Dataset 2026-06-11 Last verified 2026-06-14 3 rows

GAP MATRIX

Compliance Gap Matrix

Gap matrix
Compliance item	Common China baseline	Grenada (GDBS / PURC / GRENLEC)	Gap / action	Source + verification date
EMC — IEC 62920 and IEC 61000-Series Evidence for Grenada PV Inverter Projects	Chinese PV inverter EMC evidence is commonly bundled into GB/T 37408-2021 or another current GB/T 37408 certificate package, supported by CNAS-accredited domestic test reports. Those reports may reference IEC 61000-family methods, but the scope, limits, test voltage, and configuration may not match an IEC 62920 / IEC 61000 package expected for Grenada. China-side GB/T 37408, NB/T 32004, and GB/T 19964 evidence is not automatically accepted in Grenada.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)	Grenada's PV inverter EMC review should be prepared on an IEC basis because the market follows UK/IEC legacy practice and local project review involves GDBS standards context, PURC regulation, and GRENLEC utility acceptance. IEC 62920 is the dedicated EMC standard for PV power conversion equipment, while IEC 61000-series tests address immunity, emissions, harmonics, and flicker depending on inverter rating and connection type. No automatic acceptance of Chinese domestic EMC certificates should be assumed for Grenada projects.IEC 62920 — Photovoltaic power generating systems — EMC requirements and test methods for power conversion equipment IEC 61000 series — Electromagnetic compatibility test methods and limits relevant to emissions, immunity, harmonics, and flicker Grenada Bureau of Standards (GDBS) — national standards body context GRENLEC — utility acceptance and project interconnection documentation	Gap: Chinese domestic EMC evidence should be mapped line-by-line against IEC 62920 and the applicable IEC 61000-series tests before submission. Exporters should obtain or compile IEC EMC type-test reports for the exact inverter model, rating, firmware configuration, and grid-voltage condition being supplied. Because Grenada operates at 230/400 V and China at 220/380 V, any EMC or harmonic evidence generated at Chinese nominal voltage should be checked for applicability and retested if the project engineer, utility, or test laboratory requires it.[INFORMATIONAL] Do not rely on a China GB/T 37408 EMC certificate alone for Grenada PV inverter submissions. Prepare IEC 62920 and applicable IEC 61000-series EMC evidence for the specific inverter model and confirm whether 230/400 V Grenada operating conditions require retesting compared with China 220/380 V evidence. Verify the current GDBS, PURC, GRENLEC, and project-owner EMC expectations before shipment.	Grenada Bureau of Standards (GDBS)2026-06-14 · unverified
GRENLEC / PURC Grid Connection — IEC 62116, IEC 61727, and 50 Hz / 230 V / 400 V Settings	Chinese grid-connection evidence commonly includes GB/T 19964-2024 for photovoltaic power-station connection, NB/T 32004 for PV grid-connected inverter technical specifications, GB/T 37408-2021 or the current GB/T 37408 edition used in the certificate file, and domestic anti-islanding or protection-setting test results. These Chinese documents are based on Chinese grid conditions and do not automatically satisfy GRENLEC or PURC review for Grenada. The critical setting issue is voltage: both systems are 50 Hz, but China nominal voltage is 220/380 V and Grenada nominal voltage is 230/400 V.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) GB/T 156 — 标准电压 (Standard voltages)	Grenada solar PV inverter projects are normally reviewed through the local utility and regulatory pathway involving GRENLEC and the Public Utilities Regulatory Commission (PURC), with Grenada Bureau of Standards (GDBS) standards context where applicable. Grenada uses a 230/400 V, 50 Hz grid with UK/IEC legacy practice. Grid-tied inverter submissions should be prepared around IEC 62116 anti-islanding evidence, IEC 61727 photovoltaic grid-interface characteristics, and project-specific protection settings required by GRENLEC or the project engineer. The frequency is the same as China at 50 Hz, but nominal voltage differs: China commonly uses 220/380 V, while Grenada uses 230/400 V.IEC 62116 — Utility-interconnected photovoltaic inverters — Test procedure of islanding prevention measures IEC 61727 — Photovoltaic systems — Characteristics of the utility interface Grenada Public Utilities Regulatory Commission (PURC) — electricity-sector regulatory oversight Grenada Electricity Services Ltd. (GRENLEC) — utility grid-connection review and project interconnection requirements Grenada Bureau of Standards (GDBS) — national standards body context	Gap: Chinese GB/T and NB/T grid-connection documents are not a substitute for Grenada project review. Exporters should prepare IEC 62116 anti-islanding evidence, IEC 61727 grid-interface evidence, inverter protection-setting tables, and firmware configuration records for a 230/400 V, 50 Hz GRENLEC grid. Do not present China 220/380 V settings as matching Grenada; the frequency is the same, but the nominal voltage differs and should be retested or revalidated where settings, trip thresholds, or reconnection delays are affected.[INFORMATIONAL] Treat Grenada grid connection as a separate GRENLEC/PURC review, not as an extension of Chinese GB/T grid approval. Prepare IEC 62116 and IEC 61727 evidence and validate firmware for Grenada's 230/400 V at 50 Hz grid. China and Grenada share 50 Hz frequency, but their nominal voltages differ, so China 220/380 V settings should not be represented as directly matching Grenada requirements.	Grenada Electricity Services Ltd. (GRENLEC)2026-06-14 · unverified
IEC 62109 Safety Evidence and Caribbean Environmental Derating	China PV inverter safety files commonly rely on GB/T 37408-2021 or another current GB/T 37408 certificate package, NB/T 32004 technical documentation, factory quality records, and CNAS laboratory reports. These materials may demonstrate useful baseline design controls, but they are not automatically equivalent to IEC 62109-1/-2 type-test evidence for Grenada. China-side evidence also may not address tropical coastal derating, salt-mist exposure, hurricane wind-driven rain, surge environment, and installation requirements expected by Caribbean project owners.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)	Solar PV inverters supplied to Grenada should be documented with IEC 62109-1 and IEC 62109-2 safety evidence for power converters used in photovoltaic systems. Because Grenada is a hurricane-exposed, humid, salt-mist coastal Caribbean market, project specifications may also require evidence for enclosure rating, corrosion resistance, thermal derating, surge protection, and installation conditions suitable for coastal service. Local acceptance should be coordinated with GDBS standards context, PURC-regulated project requirements, GRENLEC interconnection review, and the project owner or engineer.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 Grenada Bureau of Standards (GDBS) — national standards body context Public Utilities Regulatory Commission (PURC) — electricity-sector regulatory context GRENLEC — utility interconnection review and project acceptance context	Gap: A China GB/T inverter certificate does not by itself establish IEC 62109 safety compliance for Grenada. Exporters should compile IEC 62109-1/-2 type-test certificates and reports for the model family, nameplate and installation instructions suitable for 230/400 V, 50 Hz service, and environmental evidence addressing corrosion, IP rating, surge protection, heat, humidity, and hurricane-exposed installations. Sea freight via St George's should preserve traceability of model numbers, ratings, manuals, and certificates in the import and project documentation package.[INFORMATIONAL] Plan for IEC 62109-1/-2 safety documentation and Grenada-specific environmental derating evidence instead of relying on China GB/T 37408 files alone. The inverter package should address 230/400 V at 50 Hz service, hurricane exposure, humidity, salt-mist corrosion, surge protection, and St George's import traceability. Verify current GDBS, PURC, GRENLEC, and project-owner requirements before shipment or installation.	Public Utilities Regulatory Commission (PURC), Grenada2026-06-14 · unverified

INFORMATIONAL ONLY

Informational only / not a certification conclusion

AI-compiled, not human-verified. This comparison is generated and cross-checked by multiple AI models from public official sources; it has not been reviewed by a named human expert and may contain errors or out-of-date items. Confirm every requirement directly with the official regulator or standards body and a qualified professional before relying on it. Nothing here is legal, certification, customs, or market-access advice.

This page is an informational comparison aid, not a certification decision, legal opinion, GDBS standards determination, PURC approval, GRENLEC grid-connection approval, customs determination, or market-access approval. Exporters, importers, designers, and installers should verify current Grenada Bureau of Standards requirements, Public Utilities Regulatory Commission rules, GRENLEC interconnection procedures, applicable OECS/CARICOM standards context, hurricane and marine-environment project specifications, and project-owner requirements with qualified professionals before shipment or installation.

E-E-A-T

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Official regulator, standards body, notified body, customs, or primary legal source preferred. Local PDFs are not accepted.

Editorial controls

Rows must include publisher, official URL, access date, verification flag, and last_verified before human_reviewed can be true.

SOURCES

Official-source register.

Grenada Bureau of Standards (GDBS) · accessed 2026-06-14 · unverified · used in 1 rows
Grenada Electricity Services Ltd. (GRENLEC) · accessed 2026-06-14 · unverified · used in 1 rows
Public Utilities Regulatory Commission (PURC), Grenada · accessed 2026-06-14 · unverified · used in 1 rows