EVSE CCS2 Communication Handshake Test — Corridor CN→KR

A corridor-bound Standard Operating Procedure that walks an EVSE field engineer from cable inspection through SLAC pairing to a wired OCPP 1.6J transaction, then assembles a bilingual hand-off pack so the unit is ready to operate on the China → Korea trade lane.

Vertical: EVSEType: Process / SOPStandard: IEC 61851-1, ISO 15118-2Corridor: CN→KROwner role: Field EngineerIssued: 2026-09-21

Download SOP Checklist (PDF) Request Quote — replies in 48h

1. Scope, Audience and Trigger

Scope. Every CCS2 DC fast charger commissioned, recommissioned, or returned to service after a control-board repair on the China → Korea corridor.

Audience. TradVolt field engineers, the client's O&M duty supervisor, and OEM factory service representatives who require a shared acceptance baseline.

Trigger. New install, firmware update, SLAC retry count above threshold, or an annual maintenance slot in the CMMS.

[ Claim | Src: IEC 61851-1:2017 — Annex C | URL: https://webstore.iec.ch/publication/33611 | accessed 2026-09-21 ]

Plain English summary only; the binding text is the cited standard.

2. Step Sequence

Table 2.1 — End-to-end SOP step sequence; every action has an explicit owner.
Step #	Action	Owner	Input doc	Output doc	Done-when
1	Confirm EVSE model, firmware build, installed location, and that grid, internet and earth connections are healthy.	Field Engineer	tradvolt-ccs2-site-survey-v2.3.xlsx	sop-ccs2-cn-kr-precond-record.pdf	Asset tag, FW build and earth-bond reading recorded with timestamp.
2	Don arc-rated PPE; apply Lockout–Tagout on the upstream AC; obtain a live-work permit.	Field Engineer + Safety Officer	IEC 62955 safety checklist	lot-energise-photo-evidence.zip	LOTO tag affixed; permit countersigned by Safety Officer.
3	Inspect CCS2 cable, contacts, latch and inlet for wear, contamination, overheating marks and IP54 sealing integrity.	Field Engineer	cable-visual-guideline-iso-2859-1.pdf	cable-condition-form.pdf	Inspection sheet signed; pass = no thermal marks.
4	Measure Proximity Pilot resistance and Control Pilot voltage on a confirmed de-energised inlet.	Field Engineer	OEM EVSE wiring diagram	pp-cp-measurement-log.csv	PP within ±1 % of coded value; CP @ ±12 V / ±9 V / ±6 V per state.
5	Connect a CCS2 EV emulator; confirm the SLC module pairing state and short-link test status on the HMI.	Field Engineer	EV emulator user manual	emulator-link-screenshot.png	“Link OK / paired” indicator visible on HMI.
6	Run a 5-cycle HomePlug Green PHY handshake; capture the QoC bytes for each cycle.	Field Engineer	Oscilloscope (≥ 100 MHz, isolated)	slac-5cycle-trace.pdf	5 / 5 cycles complete within ≤ 4.5 s each.
7	Run the PICS test cases for DIN 70121 / ISO 15118-2, including matching process and target parameters.	Field Engineer + OEM Engineer	PICS test suite (OEM-issued)	pics-conformance-report.pdf	All mandatory cases return PASS.
8	From the CSMS, push a StartTransaction to the EVSE; confirm StatusNotification and MeterValues.	Backend Operator + Field Engineer	OCPP 1.6J schema (OCPP-1.6-J-Specification)	ocpp-transaction-log.json	MeterValues backflow ≤ 60 s; transactionId returned.
9	Perform 500 V / 1 min insulation resistance and PE continuity tests.	Field Engineer	IEC 61851-1 Annex C	insulation-test-record.pdf	IR ≥ 1 MΩ; PE ≤ 0.1 Ω at 25 A.
10	Inject a CP signal-out-of-range, then a PP mismatch; confirm the EVSE trips safely and surfaces a coded fault.	Field Engineer	Fault-injection spreadsheet (OEM)	fault-trip-report.pdf	Unit opens contactor; fault code logged to CSMS.
11	Compile test sheet, oscilloscope captures and firmware-vendor pass report into a bilingual handoff pack.	Field Engineer	Section 5 checklist	tradvolt-cn-kr-handoff-pack-v1.pdf	PDF < 25 MB; SHA-256 logged in CMMS.
12	Lock the asset in the CMMS, file manuals into the on-site binder, brief the duty supervisor.	Field Engineer + Operations Lead	CMMS work order	cmms-acceptance-ticket.pdf	Status “Ready for Service”; duty supervisor signs.

3. Factual Claim Rows

[ Claim | The CCS2 connector family is standardised in IEC 62196-3, which defines Type 2 pin spacing and the DC current-carrying contacts used in this SOP. | Src: IEC 62196-3:2022 | URL: https://webstore.iec.ch/publication/62266 | accessed 2026-09-21 ]

[ Claim | DC EV charging stations require testing per IEC 61851-23, the international standard governing the DC charging control function, including PWM signalling and digital communication. | Src: IEC 61851-23:2023 | URL: https://webstore.iec.ch/publication/62244 | accessed 2026-09-21 ]

[ Claim | IEC 61851-1 Annex C defines post-test insulation resistance thresholds applied at step 9 of this SOP. | Src: IEC 61851-1:2017 — Annex C | URL: https://webstore.iec.ch/publication/33611 | accessed 2026-09-21 ]

[ Claim | ISO 15118-2 specifies the conformance test (PICS) executed at step 7, with SLAC validation as the first 802.3-style carrier and session setup prior to UDP/TLS. | Src: ISO 15118-2:2014 | URL: https://www.iso.org/standard/59666.html | accessed 2026-09-21 ]

[ Claim | DIN 70121 defines a reduced feature-set predecessor protocol that some Korean fleets still require; both protocols are dispatched from the same SLAC layer. | Src: DIN 70121:2012 | URL: https://www.din.de/en/getting-involved/standards-committees/nasg/standards/wdc-beuth:din21:193604873 | accessed 2026-09-21 ]

[ Claim | The physical-layer (HLE / SLAC) handshake used during PLC-based EV/EVSE matching is defined in ISO 15118-3, with HomePlug Green PHY as the customary carrier. | Src: ISO 15118-3:2015 | URL: https://www.iso.org/standard/61884.html | accessed 2026-09-21 ]

[ Claim | OCPP 1.6J is the back-office protocol invoked at step 8; the open specification is published by the Open Charge Alliance. | Src: Open Charge Alliance — OCPP 1.6, JSON Edition | URL: https://www.openchargealliance.org/protocols/ocpp-16/ | accessed 2026-09-21 ]

[ Claim | IEC 62955 gives in-cable residual current protection and the live-work permit reference invoked in step 2. | Src: IEC 62955:2016 | URL: https://webstore.iec.ch/publication/25246 | accessed 2026-09-21 ]

[ Claim | Connector wear and contamination detected in step 3 are sampled by attributes and lot using ISO 2859-1 general inspection Level II, AQL 1.0. | Src: ISO 2859-1:1999 | URL: https://www.iso.org/standard/1141.html | accessed 2026-09-21 ]

[ Claim | UL 2202 / UL 2734 provide the North-American safety baseline accepted by global bidders who source within or via the United States. | Src: UL 2202 (UL Product iQ) | URL: https://www.shopulstandards.com/ProductDetail.aspx?UniqueKey=33533 | accessed 2026-09-21 ]

4. Document Checklist

Literal filenames as they appear on the engineer tablet and in the CMMS. Mismatched filenames block handover.

tradvolt-ccs2-site-survey-v2.3.xlsx
sop-ccs2-cn-kr-precond-record.pdf
lot-energise-photo-evidence.zip
cable-visual-guideline-iso-2859-1.pdf
cable-condition-form.pdf
pp-cp-measurement-log.csv
emulator-link-screenshot.png
slac-5cycle-trace.pdf
pics-conformance-report.pdf
ocpp-transaction-log.json
insulation-test-record.pdf
fault-trip-report.pdf
tradvolt-cn-kr-handoff-pack-v1.pdf
cmms-acceptance-ticket.pdf

5. Timeline and Dependencies

Table 5.1 — Indicative durations for an 8-hour shift; cost slots are **indicative** and not a quotation.
Phase	Indicative duration	Depends on	Cost slot
Mobilisation to site (CN border warehouse)	~ 4 h	Customs clearance of tools and emulator	Logistics slot: indicative
Road transit to KR site (Incheon / Busan)	~ 18 h	Ferry slot, customs broker	Indicative; UNCERTAIN subject to weather
Pre-condition survey (Steps 1–3)	~ 1.5 h	LOTO permit, OEM drawings	Engineering day rate: indicative
PP / CP / SLC measurement (Steps 4–5)	~ 0.5 h	Emulator firmware alignment	UNCERTAIN until OEM stable build
PLC SLAC handshake (Step 6)	~ 0.75 h	Stable mains; PLC coupling network	Indicative
PICS / DIN 70121 (Step 7)	~ 2 h	OEM engineer on call	UNCERTAIN until OEM engineer availability confirmed
OCPP loop (Step 8)	~ 0.5 h	CSMS connection, CA-signed certs	Indicative
Insulation + fault injection (Steps 9–10)	~ 1.25 h	Test fixtures	Indicative
Handoff and CMMS (Steps 11–12)	~ 1 h	All artifacts present	Indicative

Routing, RoRo terms, and customs broker fees are described using Incoterms 2020 terminology in §6.

6. Logistics and Customs — CN→KR Corridor

6.1 Incoterms baseline. Equipment lots are typically quoted CIP Incheon or DAP Incheon DC warehouse. The Receiving Party must provide an “Autorisation administrative pour le transit” equivalent — in practice the Korea Customs Service import declaration via UNI-PASS.

6.2 FIATA cross-border doc set. A multi-modal truck + short-sea shipment uses a FIATA FBL (negotiable multimodal transport waybill) for the CN-port → Busan/Incheon leg, supported by commercial invoice, packing list and the FIATA FIATA Bill of Lading where a single carrier accepts loading.

6.3 Cross-border CN customs. Trucks exit through the General Administration of Customs of the People's Republic of China (GACC) at Manzhouli or Hunchun; 出口退货 and ATA Carnet procedures apply when re-export is in scope.

6.4 Cross-border KR customs. Inbound road cargo clears through the Korea Customs Service — UNI-PASS. Hard declarations begin at the bonded warehouse attached to the entry port.

[ Claim | Incoterms 2020 defines the CIP and DAP rules cited above, assigning risk transfer, transport and customs handling responsibilities to each party. | Src: ICC Incoterms 2020 (ICC Publication No. 723E) | URL: https://iccwbo.org/business-solutions/incoterms-rules/incoterms-2020/ | accessed 2026-09-21 ]

[ Claim | The FIATA multimodal transport contract reference documents (FBL, FCR) are issued under FIATA's framework rules for forwarders. | Src: FIATA Multimodal Transport Waybill (FBL) Rules | URL: https://fiata.com/what-we-do/fiata-bills.html | accessed 2026-09-21 ]

[ Claim | Inbound customs clearance is lodged through UNI-PASS, the Korea Customs Service Single Window platform. | Src: Korea Customs Service — UNI-PASS | URL: https://www.customs.go.kr/eng/main.do | accessed 2026-09-21 ]

[ Claim | Outbound CN customs clearance, returns and ATA procedures are governed by the General Administration of Customs of the People's Republic of China (GACC). | Src: GACC — 海关总署 | URL: http://english.customs.gov.cn/ | accessed 2026-09-21 ]

7. Duties, HS Code and Cross-Border Duties

Table 7.1 — Harmful-tax reference only; rates are placeholders until the official portal is queried the same business day.
Item	HS code (WCO Rev. 2026 nomenclature; CN used by default)	Description	CN export duty rate	KR import duty rate
DC fast EVSE ≤ 50 kW	8504.40.40	Static converters — power supplies for charging electric vehicles	PENDING — lookup	PENDING — lookup
DC fast EVSE > 50 kW	8504.40.50	Static converters — other, higher-power	PENDING — lookup	PENDING — lookup
CCS2 charge cable / connector (spare part)	8536.69.00	Plugs and sockets for apparatus of switching, protecting or connecting electrical circuits — other	PENDING — lookup	PENDING — lookup
Charge-controller PCB (spare)	8542.31.00	Electronic integrated circuits — mounted chips	PENDING — lookup	PENDING — lookup

Official portal — CN side: GACC Customs Tariff Search — http://english.customs.gov.cn/.

Official portal — KR side: Korea Customs Service Trade Portal — https://www.customs.go.kr/eng/main.do and the HS Rulings section within UNI-PASS.

Notice — All duty and VAT lines above are placeholders marked PENDING — lookup. We do not publish hard-coded rates because CN and KR tariff schedules change. Always confirm via the official portals above on the date of the customs declaration. TradVolt does not provide tax advice; consult a licensed customs broker.

8. Request Quote

Need a field engineer on the CN→KR corridor, an OEM-aligned firmware build, or a customs broker who understands CCS2 spare parts? TradVolt returns RFQs within 48 working hours in either Chinese or Korean.

Request Quote — replies in 48h

Reply window is 48 working hours from receipt of a complete RFQ (items, quantities, pickup / delivery, payload list, target service date).

9. Roles and Responsibilities

Field Engineer — Steps 1–12 physical execution; signatories of the bilingual hand-off pack.
Safety Officer — countersigns LOTO permit (Step 2).
OEM Engineer — remote support for PICS test and firmware versioning (Step 7).
Backend Operator — operates the CSMS for the OCPP loop (Step 8).
Operations Lead — receives the brief, locks CMMS status (Step 12).
Customs Broker — CIP / DAP execution, FBL/FCR documentation (Section 6).

10. References

IEC 61851-1:2017, Annex C. URL: https://webstore.iec.ch/publication/33611
IEC 61851-23:2023. URL: https://webstore.iec.ch/publication/62244
IEC 62196-3:2022. URL: https://webstore.iec.ch/publication/62266
IEC 62955:2016. URL: https://webstore.iec.ch/publication/25246
ISO 15118-2:2014. URL: https://www.iso.org/standard/59666.html
ISO 15118-3:2015. URL: https://www.iso.org/standard/61884.html
ISO 2859-1:1999. URL: https://www.iso.org/standard/1141.html
DIN 70121:2012. URL: https://www.din.de/en/getting-involved/standards-committees/nasg/standards/wdc-beuth:din21:193604873
UL 2202. URL: https://www.shopulstandards.com/ProductDetail.aspx?UniqueKey=33533
Open Charge Alliance — OCPP 1.6, JSON Edition. URL: https://www.openchargealliance.org/protocols/ocpp-16/
ICC Incoterms 2020 (ICC Publication No. 723E). URL: https://iccwbo.org/business-solutions/incoterms-rules/incoterms-2020/
FIATA FBL Rules. URL: https://fiata.com/what-we-do/fiata-bills.html
Korea Customs Service — UNI-PASS. URL: https://www.customs.go.kr/eng/main.do
General Administration of Customs of China (GACC). URL: http://english.customs.gov.cn/

All sources accessed on 2026-09-21. TradVolt is not a customs authority; rates, HS codes and rulings must be validated through the official portals.