CROSS-STANDARD public interest · Solar PV inverter

China-to-El Salvador 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 El Salvador OSARTEC / OSN standards and conformity checks, SIGET and distributor interconnection requirements, IEC 62109-1/-2 safety evidence, IEC 62116 anti-islanding, IEC 61727 utility-interface evidence, IEC 62920 / IEC 61000 EMC evidence, 60 Hz / 120-240 V grid settings, and China GB/T baseline documents.

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

GAP MATRIX

Compliance Gap Matrix

Gap matrix
Compliance item Common China baseline El Salvador (OSARTEC / SIGET) Gap / action Source + verification date
EMC — IEC 62920 / IEC 61000 Evidence for PV Inverter Power Conversion Equipment Chinese PV inverter EMC files often rely on GB/T 37408 and related domestic laboratory reports. These may reference IEC 61000-style methods, but they are China domestic evidence and are normally produced around China 50 Hz operating conditions. They should not be assumed to satisfy IEC 62920, OSARTEC / OSN, SIGET, distributor, buyer, or lender expectations for a 60 Hz El Salvador project.GB/T 37408-2019 — 光伏并网逆变器技术要求 (Technical Requirements for Photovoltaic Grid-Connected Inverters) — includes EMC requirements
NB/T 32004-2018 — 光伏并网逆变器技术规范 (Technical Specification for Photovoltaic Grid-Connected Inverters)		 For El Salvador PV inverter projects, EMC evidence should be checked against the OSARTEC / OSN standards and conformity route, SIGET or distributor project specifications, and buyer or lender requirements. IEC 62920 is the dedicated EMC standard for photovoltaic power generating systems' power conversion equipment, and IEC 61000-series tests are commonly used for emissions, immunity, harmonics, and power-quality evidence. Where the inverter is grid-tied, EMC and harmonic evidence should align with the actual 60 Hz operating profile and the project connection voltage.IEC 62920 — Photovoltaic power generating systems — EMC requirements and test methods for power conversion equipment
IEC 61000 series — Electromagnetic compatibility test methods and limits
OSARTEC / OSN adopted standards and conformity route where applicable
SIGET or distributor project specifications where applicable		 Gap: GB/T EMC reports do not automatically prove IEC 62920 or project-specific EMC acceptance in El Salvador. Exporters should provide model-specific IEC 62920 and relevant IEC 61000 reports from an accepted laboratory, confirm whether OSARTEC / OSN has adopted or required a Salvadoran version, and confirm whether harmonics or immunity evidence must be repeated or reviewed under the 60 Hz / 120-240 V project configuration.[INFORMATIONAL] Do not treat a Chinese GB/T 37408 EMC certificate as a complete El Salvador EMC package. Confirm OSARTEC / OSN and project acceptance, then supply IEC 62920 and relevant IEC 61000 evidence for the exact inverter configuration and 60 Hz operating profile. International Electrotechnical Commission (IEC)2026-06-14 · unverified
SIGET and Distributor Grid Interconnection — 60 Hz / 120-240 V Settings Chinese PV inverter grid evidence commonly includes GB/T 19964-2024, NB/T 32004, GB/T 37408, and domestic anti-islanding or grid-protection test reports. These documents are prepared for China grid conditions, normally 50 Hz with 220/380 V low-voltage references under Chinese practice. They do not demonstrate that the shipped inverter has a locked, tested El Salvador 60 Hz / 120-240 V profile or that SIGET and the relevant distributor will accept the equipment for interconnection.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 37408-2019 — 光伏并网逆变器技术要求 (Technical Requirements for Photovoltaic Grid-Connected Inverters)		 Grid-tied PV inverter projects in El Salvador must be reviewed through the applicable SIGET electricity framework and the serving distribution company, such as CAESS, DELSUR, EEO, CLESA, or B&D, before energisation. The practical technical package should identify the inverter model, 60 Hz firmware profile, voltage and frequency trip windows, reconnection timing, anti-islanding settings, power-quality limits, metering arrangement, and commissioning lock method. El Salvador uses an Americas-style 120/240 V, 60 Hz distribution environment, so inverter grid-protection settings must be validated for 60 Hz operation and local service voltage, not for China 50 Hz / 220-380 V defaults.SIGET electricity-sector and distributor interconnection requirements for grid-tied generation
IEC 62116 — Utility-interconnected photovoltaic inverters — Test procedure of islanding prevention measures
IEC 61727 — Photovoltaic systems — Characteristics of the utility interface
Project distributor requirements from CAESS, DELSUR, EEO, CLESA, or B&D		 Gap: a China 50 Hz grid package does not prove El Salvador interconnection readiness. Exporters should prepare a distributor-facing package with the exact 60 Hz firmware profile, IEC 62116 anti-islanding evidence, IEC 61727 utility-interface evidence where required, settings tables, commissioning procedure, and model-specific test reports. Any factory default made for China should be reconfigured, documented, and retested where the parameter change affects anti-islanding, frequency response, voltage trip thresholds, or reconnection behavior.[INFORMATIONAL] Treat SIGET and the serving distributor as project gates. Do not ship a China 50 Hz / 220-380 V default profile as if it were ready for El Salvador; validate and document the 60 Hz / 120-240 V grid profile before interconnection submission. Superintendencia General de Electricidad y Telecomunicaciones (SIGET)2026-06-14 · unverified
Distributed Generation and Net-Billing Documentation — SIGET / Distributor Project Gate China distributed PV approvals and inverter certificates are issued under Chinese policy, grid-company, and GB/T / NB/T frameworks. They can be useful engineering references, but they do not create an El Salvador interconnection approval, distributor acceptance, metering approval, or net-billing entitlement.NB/T 32004-2018 — 光伏并网逆变器技术规范 (Technical Specification for Photovoltaic Grid-Connected Inverters)
GB/T 37408-2019 — 光伏并网逆变器技术要求 (Technical Requirements 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)		 El Salvador has a practical project pathway for distributed renewable generation and net-billing style arrangements through the electricity regulator and the serving distributor. For inverter compliance, the project file should support the interconnection study, metering design, protection coordination, commissioning checks, and any distributor model-acceptance review. The inverter evidence should therefore be tied to the actual project voltage, phase configuration, export limits, and 60 Hz protection settings, not only to a generic international certificate.SIGET distributed-generation and electricity-sector procedures
Serving-distributor interconnection and metering requirements
IEC 62116 and IEC 61727 evidence where required by project specifications		 Gap: Chinese domestic distributed-generation approvals are not portable. For El Salvador, confirm the specific distributor process, export or self-consumption arrangement, metering requirements, protection study requirements, and accepted inverter evidence before committing equipment. The same inverter family may need different settings or evidence depending on whether the project is single-phase 120/240 V, split-phase, or three-phase service.[INFORMATIONAL] Confirm the SIGET and distributor project route before treating an inverter as eligible for distributed generation or net billing. Chinese distributed PV approvals do not substitute for El Salvador interconnection, metering, protection, or commissioning acceptance. Superintendencia General de Electricidad y Telecomunicaciones (SIGET)2026-06-14 · unverified
IEC 62109-1 / IEC 62109-2 Safety Evidence — OSARTEC / OSN and Project Acceptance China's common PV inverter safety evidence includes GB/T 37408, NB/T 32004, voluntary CQC or CGC certification, and CNAS-accredited domestic test reports. These documents may be useful as background, but GB/T evidence is not the same as IEC 62109-1/-2 type-test evidence and does not itself prove Salvadoran standards acceptance, SIGET acceptance, distributor acceptance, or project-owner acceptance.GB/T 37408-2019 — 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)		 El Salvador's standards and technical-regulation route should be checked through OSARTEC and OSN before shipment, and grid-tied PV projects should also satisfy SIGET, distributor, buyer, and project-owner safety evidence expectations. IEC 62109-1 and IEC 62109-2 are the core international safety standards for power converters and inverters used in photovoltaic power systems. For a Salvadoran project, the safety file should cover the exact inverter model or family, AC and DC ratings, environmental ratings, protective functions, labels, installation instructions, and any configuration changes made for 60 Hz / 120-240 V service.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
OSARTEC / OSN adopted standards and conformity route where applicable
SIGET and distributor project requirements where applicable		 Gap: a China GB/T or voluntary domestic certificate should be supplemented with IEC 62109-1/-2 evidence for the specific model family and configuration supplied to El Salvador. Confirm whether OSARTEC / OSN has a Salvadoran adoption, whether the buyer or lender requires an ILAC-accredited report or certificate, and whether 60 Hz / 120-240 V configuration changes affect labels, ratings, protective functions, or the tested construction.[INFORMATIONAL] A PV inverter supported only by China GB/T evidence should not be treated as ready for El Salvador safety acceptance. Confirm OSARTEC / OSN scope and provide IEC 62109-1/-2 model-family evidence before relying on the inverter for SIGET, distributor, buyer, or lender review. International Electrotechnical Commission (IEC)2026-06-14 · unverified

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