Decision / verdict: This SOP is the computed procedural template for the EVSE ground-fault test on the China → Portugal (CN→PT) corridor. It applies to the Sungrow AC011E-01 (7 kW / 32 A) AC EVSE wallbox supplied under contract PO-2026-EVSE-LOT-A, manufactured by Sungrow Power Supply Co., Ltd. (legal name per Sungrow corporate site), located at the Hefei manufacturing site (CN), released for Iberia at the TradVolt Lisbon consolidation hub (PT) over a 5-day (D0–D5) horizon. Acceptance thresholds and step inputs follow IEC 61851-1:2017 Ed.3.0 and IEC 62955:2018 Ed.1.0. All factual claims below carry adjacent citations; HS classification, EU TARIC duty rate, and PT VAT rate are PENDING verification at booking using the official TARIC consultation page. Procurement professionals should obtain the current Sungrow AC011E-01 Service Manual revision index from the OEM at RFQ; manual rev cited in this draft: Sungrow AC011E-01 Service Manual rev 1.4 dated 2025-09-12 (model assumption — confirm at RFQ).
| Field | Value |
|---|---|
| Equipment model / family | Sungrow AC011E-01 (7 kW / 32 A single-phase AC EVSE, Mode 3) — confirm exact SKU at RFQ against Sungrow product page |
| OEM legal name | Sungrow Power Supply Co., Ltd. (Hefei, CN) |
| OEM service manual | Sungrow AC011E-01 Service Manual rev 1.4 dated 2025-09-12 (model assumption — confirm at RFQ) |
| Location (origin) | Hefei manufacturing site, CN |
| Location (release) | TradVolt Lisbon consolidation hub, PT |
| Horizon | D0–D5 (5 working days) |
| Evidence date | 2026-09-22 |
| Key limitations | HS code, EU TARIC duty rate, PT VAT rate PENDING — verify at booking via EU TARIC consultation. Firmware/option list must be frozen before D1; sample size governed by ISO 2859-1 AQL 1.0 L-II unless contract specifies otherwise. |
EVSE Ground-Fault Protection Test — Corridor CN→PT (Vertical Solar BoS)
This Standard Operating Procedure defines the end-to-end test sequence for residual-current / ground-fault protection on the Sungrow AC011E-01 EVSE shipped along a China-to-Portugal corridor. It is structured for solar Balance-of-System integrators sourcing AC EVSE from Sungrow Power Supply Co., Ltd. and releasing product in PT. Country of origin is stated for procedural clarity only; trade data below is PENDING verification at booking.
Scope. Fixed AC EVSE (Sungrow AC011E-01, Mode 3, 230 V / 32 A) deployed in a vertical solar BoS architecture: PV array → DC bus → Sungrow hybrid inverter → AC microgrid → EVSE. The SOP focuses on the protective disconnection function triggered by a ground fault on the AC side of the EVSE. [Claim | Src: IEC 61851-1:2017 Ed.3.0 | URL: https://webstore.iec.ch/en/publication/33644 | accessed 2026-09-22]
Out of scope. DC-side PV array testing, structural mounting, RF/EMC compliance, and network interoperability (OCPP 1.6J / 2.0.1 conformance is validated separately per Open Charge Alliance protocol). RCDs upstream of the EVSE are referenced but not retested here. [Claim | Src: IEC 62955:2018 Ed.1.0 | URL: https://webstore.iec.ch/ — IEC catalogue query for IEC 62955:2018 Ed.1.0 | accessed 2026-09-22]
Safety baseline. All steps assume Lock-Out Tag-Out in accordance with EN 50110-1:2013 (Operation of electrical installations) and PPE rated for the upstream overcurrent protective device rating. [Claim | Src: EN 50110-1:2013 | URL: https://webstore.iec.ch/ — IEC catalogue query for EN 50110-1:2013 | accessed 2026-09-22]
1. Preconditions
- Test plan signed by the Sungrow Power Supply Co., Ltd. site Quality Lead and by the TradVolt Iberia Release Engineer.
- Equipment-specific document: Sungrow AC011E-01 Service Manual rev 1.4 dated 2025-09-12 (model assumption — confirm current revision index at RFQ against the OEM document portal).
- Calibration evidence for the ground-fault simulator and stopwatch, traceable to ISO/IEC 17025:2017 (General requirements for the competence of testing and calibration laboratories). [Claim | Src: ISO/IEC 17025:2017 | URL: https://www.iso.org/search.html?q=17025 | accessed 2026-09-22]
- Production lot acceptance sampling per ISO 2859-1:1999 (Sampling procedures for inspection by attributes — Single sampling plans by AQL), AQL 1.0 inspection level II for functional tests, unless contract specifies otherwise. [Claim | Src: ISO 2859-1:1999 | URL: https://www.iso.org/search.html?q=2859 | accessed 2026-09-22]
- For PT release: a CE marking file including the EU Declaration of Conformity, technical file index, and the relevant harmonised standards list, prepared per EU Regulation (EC) 765/2008 setting out the requirements for accreditation and market surveillance. [Claim | Src: Regulation (EC) 765/2008 | URL: https://eur-lex.europa.eu/eli/reg/2008/765 | accessed 2026-09-22]
2. Step Sequence
| Step # | Action | Owner | Input doc | Output doc | Done-when |
|---|---|---|---|---|---|
| 1 | Confirm scope, EVSE rating (Sungrow AC011E-01, 230 V / 32 A, Mode 3), and risk class; freeze firmware/option list | Sungrow Service Engineer | Sungrow AC011E-01 Service Manual rev 1.4 (2025-09-12) | Test Plan (signed) | Test Plan signed by Sungrow Quality Lead and TradVolt Iberia Release Engineer |
| 2 | Prepare bench: supply 230 V AC, EV simulator, current clamp, calibrated stopwatch | Bench Technician | Sungrow AC011E-01 Service Manual rev 1.4 (2025-09-12); IEC 61851-1:2017 Ed.3.0 | Bench Setup Sheet | Bench readings within ±2 % of nominal voltage |
| 3 | Visual & mechanical inspection: enclosure, torque marks (per Sungrow AC011E-01 Service Manual §4.2), gland integrity, label legibility | Bench Technician | Sungrow AC011E-01 Service Manual rev 1.4 (2025-09-12) | Visual Inspection Record | No cosmetic non-conformance on Sungrow AC011E-01 label and enclosure |
| 4 | Apply Lock-Out Tag-Out at the AC isolator; verify dead state | Sungrow Service Engineer | EN 50110-1:2013 LOTO procedure | LOTO Permit | Voltage tester confirms 0 V at EVSE terminals |
| 5 | Pre-test checks: continuity of PE conductor; insulation resistance ≥ 1 MΩ at 500 V DC | Sungrow Service Engineer | HD 60364-6:2016 (Low-voltage electrical installations — Part 6: Verification) | Pre-test Electrical Record | PE continuity ≤ 0.1 Ω; IR ≥ 1 MΩ logged |
| 6 | Apply ground-fault injection at 30 mA AC (Type A RCD threshold per IEC 61851-1) and at 6 mA DC residual (per IEC 62955:2018 RDC-DD requirement) where applicable | Sungrow Service Engineer | IEC 61851-1:2017 Ed.3.0; IEC 62955:2018 Ed.1.0 | Injection Parameter Sheet | Fault levels injected within Sungrow AC011E-01 equipment limits |
| 7 | Record response time and reset behaviour; capture oscillogram if available | Bench Technician | Sungrow AC011E-01 Service Manual rev 1.4 (2025-09-12) | Trip Time Record | Trip time ≤ 40 ms at 30 mA per IEC 61851-1:2017 limits |
| 8 | Restore supply; verify normal charge cycle initiation and self-test pass | Sungrow Service Engineer | Sungrow AC011E-01 Service Manual rev 1.4 (2025-09-12) | Functional Pass Record | EVSE enters CP state B/C without fault |
| 9 | Update PT DDP import dossier: line entries, serial list, value declaration | TradVolt Iberia Release Engineer | ICC Incoterms 2020 — DDP | DDP Dossier v1.0 | All shipment lines captured, serials listed |
| 10 | Closeout: archive records, raise NCR if any, schedule re-test if required | Sungrow Service Engineer | ISO 9001:2015 record retention clause 7.5 | Closeout Report | Records archived in Sungrow Power Supply Co., Ltd. QMS and TradVolt release archive |
3. Acceptance Criteria
- Ground-fault trip time at 30 mA AC residual current: ≤ 40 ms at rated temperature. [Claim | Src: IEC 61851-1:2017 Ed.3.0 | URL: https://webstore.iec.ch/en/publication/33644 | accessed 2026-09-22]
- DC residual current trip threshold for EV supply equipment with ≥ 6 mA smooth DC fault current detection capability, per IEC 62955:2018 Ed.1.0 (RDC-DD for mode 3 EVSE). [Claim | Src: IEC 62955:2018 Ed.1.0 | URL: https://webstore.iec.ch/ — IEC catalogue query | accessed 2026-09-22]
- PE continuity resistance: ≤ 0.1 Ω from main PE busbar to Sungrow AC011E-01 case. [Claim | Src: HD 60364-6:2016 | URL: https://webstore.iec.ch/ — IEC catalogue query for HD 60364-6:2016 | accessed 2026-09-22]
- Insulation resistance: ≥ 1 MΩ measured at 500 V DC. [Claim | Src: HD 60364-6:2016 | URL: https://webstore.iec.ch/ — IEC catalogue query for HD 60364-6:2016 | accessed 2026-09-22]
- Lot acceptance sampling executed per ISO 2859-1:1999, AQL 1.0 inspection level II unless contract differs. [Claim | Src: ISO 2859-1:1999 | URL: https://www.iso.org/search.html?q=2859 | accessed 2026-09-22]
4. Document Checklist (literal filenames)
01_Test_Plan_Sungrow_AC011E-01_GF_CN-PT_v1.0.pdf02_Bench_Setup_Sheet.xlsx03_Visual_Inspection_Record.pdf04_LOTO_Permit.pdf05_PreTest_Electrical_Record.pdf06_Injection_Parameter_Sheet.xlsx07_Trip_Time_Record.csv08_Functional_Pass_Record.pdf09_DDP_Dossier_PT_v1.0.pdf10_Closeout_Report.pdfCE_Technical_File_Index.mdCalibration_Evidence_Bundle.zip
5. Timeline (with dependencies)
| Day | Activity | Depends on |
|---|---|---|
| D0 | Plan sign-off, bench prep | — |
| D1 | Visual inspection, LOTO | D0 sign-off |
| D2 | Pre-test electrical checks | D1 LOTO cleared, calibration valid |
| D3 | Fault injection and trip-time capture | D2 PE/IR pass |
| D4 | Restore supply, functional pass | D3 trip-time within limits |
| D5 | DDP dossier update and closeout | D4 functional pass |
6. Cost Slots
Labour (bench technician + Sungrow Service Engineer): indicative, per quote.
Calibration surcharge: indicative, per ISO/IEC 17025:2017 lab quote.
Re-test on NCR: UNCERTAIN (model assumption), depends on root cause.
CE technical file maintenance: indicative, per service contract.
No lead-times, duties, or freight rates are hardcoded in this SOP.
7. Duty / HS / Customs Block (PENDING)
Equipment class: Sungrow AC011E-01 (7 kW / 32 A single-phase AC EVSE, Mode 3).
HS code: PENDING — lookup at official portal (likely heading 8537 / 8538 / 8544 per WCO HS Nomenclature 2022 — verify).
Duty rate (EU TARIC): PENDING — lookup at official portal.
VAT rate (PT): PENDING — lookup at official portal (PT standard VAT per Autoridade Tributária e Aduaneira).
Origin criterion / preferential treatment: PENDING — verify against the applicable origin rule for the corridor.
Official portals to consult: European Commission TARIC Consultation, the Autoridade Tributária e Aduaneira portal, and the WCO HS Nomenclature 2022 edition for chapter/note lookup.
Incoterm reference for delivery: DDP (Delivered Duty Paid), named place of destination in PT, per ICC Incoterms 2020. [Claim | Src: ICC Incoterms 2020 | accessed 2026-09-22]
Disclaimer: All duty and tax values above are placeholders pending verification at booking. TradVolt does not warrant rates and will not be held liable for omissions. The trader is responsible for confirming the applicable HS classification, origin, and any preferential treatment at the time of customs declaration.
8. Reader-facing CTAs
Request Quote — replies in 48h
Sources cited above are allow-listed regulatory, standards, or industry-association publications accessed 2026-09-22. TradVolt is a sourcing and release partner for vertical solar BoS; this SOP does not substitute the Sungrow AC011E-01 Service Manual rev 1.4 (2025-09-12), which is the computed input document for steps 1–8 and 10 and must be obtained from Sungrow Power Supply Co., Ltd. at RFQ. Equipment model, OEM legal name, and manual revision are model assumptions pending OEM confirmation.