Tradvolt › Process / SOP › EVSE E-Stop & RCD Test
Document type: Process / SOP | Scope: Vertical solar BoS, EV charging infrastructure | Revision: 1.0
This procedure defines how Tradvolt field technicians verify the emergency-stop (E-stop) circuit and residual current device (RCD) protection on Electric Vehicle Supply Equipment (EVSE) that has cleared the China→Fiji import corridor and is being commissioned at a solar Balance-of-System site. [Claim: The objective is functional verification, not energisation of live EV load. | Src: IEC 61851-1 | URL: https://webstore.iec.ch/publication/26091 | accessed 2026-09-21] [Claim: RCD behaviour follows IEC 61008-1 for residual current operated circuit-breakers. | Src: IEC 61008-1 | URL: https://webstore.iec.ch/publication/26206 | accessed 2026-09-21]
Applies to AC EVSE units (Mode 3, up to 32 A) supplied through the CN→FJ sea-freight corridor under Incoterms 2020 CFR or DAP Suva/Lautoka. [Claim: Ocean carrier responsibilities under CFR cease once goods pass the ship’s rail at the port of loading. | Src: ICC Incoterms 2020 | URL: https://iccwbo.org/business-solutions/incoterms-rules/incoterms-2020/ | accessed 2026-09-21] [Claim: Sea-freight export documentation for China is processed via the PRC customs single-window platform. | Src: China Customs | URL: http://english.customs.gov.cn/ | accessed 2026-09-21]
[Claim: A valid OEM service manual must be present at the test station before any E-stop actuation. | Src: OEM service manuals (varies by unit) | URL: per-unit datasheet pack supplied with shipment | accessed 2026-09-21] [Claim: Personal protective equipment shall include insulated gloves rated for the installation voltage class. | Src: IEC 60364-7-722 | URL: https://webstore.iec.ch/publication/25998 | accessed 2026-09-21] [Claim: Acceptance sampling on incoming inspection lots follows ISO 2859-1 general inspection Level II. | Src: ISO 2859-1 | URL: https://www.iso.org/standard/114072.html | accessed 2026-09-21]
| Step # | Action | Owner | Input doc | Output doc | Done-when |
|---|---|---|---|---|---|
| 1 | Receive work order, site pack, and OEM datasheet from project coordinator | Site Supervisor | WT-01 Work Order | WS-01 Acknowledgement Slip | Acknowledgement slip countersigned and filed |
| 2 | Verify OEM service manual revision, type-test certificate, and E-stop circuit diagram | Commissioning Engineer | OEM Service Manual, Type-Test Certificate | VR-01 Verification Record | All three documents match serial number on nameplate |
| 3 | Isolate the EVSE at the upstream AC isolator and apply lock-out tag-out (LOTO) | Electrician (LOTO-authorised) | LM-01 LOTO Permit | LM-01 LOTO Permit (signed) | Lock and tag confirmed by second person; voltage absence verified with a two-pole tester |
| 4 | Mechanically inspect the E-stop button: palm-pressure actuation, latching, and release | Electrician | OEM Service Manual | MI-01 Mechanical Inspection Form | Button latches on press, releases on twist/pull per OEM datasheet |
| 5 | Perform RCD trip-time test at 1×IΔn (no trip) and 5×IΔn (trip ≤ 40 ms for 30 mA type) | Commissioning Engineer | OEM Service Manual, IEC 61008-1 | RC-01 RCD Test Record | Measured trip time recorded; passes if ≤ 40 ms at 5×IΔn |
| 6 | Measure earth-fault loop impedance (Ze) at the charging connector | Commissioning Engineer | LM-01 LOTO Permit, IEC 60364-7-722 | EL-01 Earth-Loop Record | Ze recorded in ohms; complies with the disconnection time in IEC 60364-4-41 |
| 7 | Restore supply via LOTO removal sequence, confirm pilot signal and interlock with the vehicle inlet | Commissioning Engineer | LM-01 LOTO Permit (cleared) | IC-01 Interlock Verification | No-load pilot signal detected; E-stop press removes pilot within 100 ms |
| 8 | Complete acceptance form with serial number, date, two signatures, and calibration IDs of test instruments | Site Supervisor | VR-01, RC-01, EL-01, IC-01 | AF-01 Acceptance Form | AF-01 fully populated and signed by Engineer and Supervisor |
| 9 | Update the asset register, attach scanned AF-01, and notify the logistics desk for cargo-handover closure | Logistics Coordinator | AF-01 (scanned) | AR-01 Asset Register entry | Asset register entry saved with revision tag and timestamp |
| 10 | Archive the signed AF-01 and test records per the records-retention schedule | Document Controller | AF-01, RC-01, EL-01, IC-01 | Archive index entry | Records indexed in the document management system with retention flag |
[Claim: LOTO is applied before any mechanical or electrical test on the E-stop circuit. | Src: IEC 60364-7-722 | URL: https://webstore.iec.ch/publication/25998 | accessed 2026-09-21] [Claim: A 30 mA RCD shall trip within 40 ms at 5×IΔn. | Src: IEC 61008-1 | URL: https://webstore.iec.ch/publication/26206 | accessed 2026-09-21] [Claim: Maximum disconnection time for AC final circuits is defined by IEC 60364-4-41. | Src: IEC 60364-4-41 | URL: https://webstore.iec.ch/publication/14921 | accessed 2026-09-21]
WT-01_Work_Order.pdf — issued by Tradvolt PMOOEM_Service_Manual_[unit-serial].pdf — shipped in cargo doc pouchLM-01_LOTO_Permit.pdf — template, site-specific data filled at siteMI-01_Mechanical_Inspection_Form.pdfRC-01_RCD_Test_Record.pdfEL-01_Earth-Loop_Record.pdfIC-01_Interlock_Verification.pdfVR-01_Verification_Record.pdfAF-01_Acceptance_Form.pdfAR-01_Asset_Register.xlsx — maintained by Logistics Coordinator| Phase | Activity | Depends on | Indicative duration |
|---|---|---|---|
| Pre-shipment (CN) | Factory acceptance test, doc pouch preparation | OEM production release | UNCERTAIN — per OEM |
| Sea freight | CN port loading to FJ port discharge (CFR) | Booking confirmed | UNCERTAIN — carrier schedule |
| Customs (FJ) | FRCS lodgement, Bio-security, TIN verification | Pre-lodgement docs | UNCERTAIN — FRCS SLA |
| Inland transport | Port to solar BoS site, Suva/Lautoka | Customs release | 1–2 days (indicative) |
| Commissioning | Execute Steps 1–10 of the procedure | Arrival on site, LOTO ready | ~8 hours (indicative) |
| Records | Archive AF-01 and register update | Step 9 complete | Same day (indicative) |
[Claim: The carrier’s CFR obligation ends when the goods are on board the vessel at the named port of shipment. | Src: ICC Incoterms 2020 | URL: https://iccwbo.org/business-solutions/incoterms-rules/incoterms-2020/ | accessed 2026-09-21] [Claim: Multimodal transport between Fiji ports and inland sites is documented under the FIATA multimodal bill of lading. | Src: FIATA | URL: https://fiata.org/ | accessed 2026-09-21]
| Cost line | Value | Status |
|---|---|---|
| OEM test kit calibration | — | UNCERTAIN — quoted per unit |
| Sea freight (CN→FJ), 20’/40’ container | — | UNCERTAIN — carrier market |
| FRCS duty and VAT | PENDING — lookup | Indicative — see Duty block |
| Site commissioning labour | — | Indicative — per site scope |
| Spare E-stop button / RCD module | — | Indicative — OEM list price |
[Claim: Static converters for EV supply equipment are commonly classified under HS heading 8504.40 of the WCO Harmonised System. | Src: WCO Harmonised System | URL: https://www.wcoomd.org/en/topics/nomenclature/instrument-and-tools/hs-nomenclature-2022-edition.aspx | accessed 2026-09-21] [Claim: The Fiji-specific duty rate is published by the Fiji Revenue & Customs Service Tariff portal and must be looked up against the current edition. | Src: Fiji Revenue & Customs Service | URL: https://www.frcs.org.fj/our-services/taxes-duties/tariff/ | accessed 2026-09-21]
| Item | Suggested HS heading | Duty / VAT rate (FJ) | Source |
|---|---|---|---|
| EVSE static converter / power unit | 8504.40 (PENDING — lookup at 6-digit level against current Fiji tariff) | PENDING — lookup on FRCS Tariff portal | FRCS Tariff portal (official) |
| Spare RCD module (residual current operated) | 8536 (PENDING — lookup sub-heading) | PENDING — lookup on FRCS Tariff portal | FRCS Tariff portal (official) |
| E-stop push-button (industrial) | 8536.50 (PENDING — lookup sub-heading) | PENDING — lookup on FRCS Tariff portal | FRCS Tariff portal (official) |
Disclaimer: HS classifications and duty/VAT rates above are flagged “PENDING — lookup” and must be confirmed against the current FRCS Tariff edition and any applicable concession orders before shipment. Tradvolt does not warrant the rate and recommends importer verification.
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