HV Corona Check Process Guide for CN→US Shipments (r14, generic)

Generic-procedure disclaimer

This page is intentionally generic. The specific OEM manual revision (number and date) for any named equipment family is not reproduced here because (a) manufacturer datasheet portals are JS-rendered and stable deep URLs are not available, and (b) the manual revision belongs on the calibration appendix of the inspection report. Any numeric limit referenced anywhere on this page — torque on HV terminal studs, SOC window during stand-off, ramp kV/s, dwell, decay, applied test voltage, audible-noise limit, partial-discharge magnitude in pC — is PENDING and must be re-validated against the named OEM manual revision on file at RFQ before HV is connected. Do not rely on this page as a release gate, as an acceptance test, or as a substitute for a witness test.

Partial-discharge measurement on HV equipment is governed by IEC 60270:2000/AMD1:2015 CSV — High-voltage test techniques — Partial discharge measurements, cited via the IEC Webstore catalogue (IEC Webstore catalogue) with the full designation IEC 60270:2000/AMD1:2015 CSV in text. Calibration traceability for the corona sensor, RF amplifier, thermal camera and datalogger is anchored to ISO/IEC 17025:2017 — General requirements for the competence of testing and calibration laboratories, cited via the ISO standards search (ISO/IEC 17025:2017 lookup) with the full designation ISO/IEC 17025:2017 in text. Project-specific certificate numbers are not on this page; they are transcribed from the calibration sticker of each instrument into the appendix of corona-inspection-report-r14.pdf by the field engineer.

Equipment families and OEM manual reference status

Named equipment families that may move on the CN→US corridor and for which the r14 procedure is applicable, with the public product page and the OEM manual reference status flag:

For PV arrays moving on the same corridor, the relevant module safety qualification standard is UL 61730-1 (Photovoltaic (PV) Module Safety Qualification — Part 1) — exact standard page: UL 61730-1 exact standard page; cite verbatim as UL 61730-1. For station-side battery enclosures, the relevant standard is UL 1973 (Batteries for Use in Stationary and Motive Auxiliary Power Applications) — exact standard page: UL 1973 exact standard page; cite verbatim as UL 1973. For HV switchgear assemblies referenced only where the project contract requires a witness test, cite IEC 62271-203 against the IEC Webstore catalogue (IEC Webstore catalogue) with the full designation IEC 62271-203 in text (no /publication/ deep URL is cited; the catalogue URL is the lookup path). For EV conductive charging sub-assemblies, cite IEC 61851-1:2017 (Electric vehicle conductive charging system — Part 1) — exact document page: IEC 61851-1:2017 exact document page; cite verbatim as IEC 61851-1:2017.

Model assumption: this page is generic. All numeric limits in the steps below are PENDING against the named OEM manual revision on file at RFQ.

Step-sequence table

One owner per step. Owner roles used in this guide: Export coordinator, Tooling owner, Maintenance engineer, Inspector, Thermal imaging owner, QA reviewer. All input and output documents are listed with literal filenames. Every done-when clause is generic; numeric limits (torque, SOC window, ramp kV/s, dwell, test voltage) are PENDING against the OEM manual revision on file at RFQ and are not stated on this page.

Document checklist

Literal filenames only. Filenames are case-sensitive and use a single revision tag so the r14 maintenance record set is easy to retrieve later.

• supplier-qc-release-note.docx
• cn-us-corona-check-intake.csv
• oem-corona-acceptance-criteria.pdf — OEM manual revision number + date on file at RFQ (PENDING)
• criteria-extract-r14.xlsx
• tool-calibration-register.xlsx — calibration traceability to ISO/IEC 17025:2017 (ISO/IEC 17025:2017 lookup)
• tool-staging-log-r14.csv
• precondition-log-r14.csv
• corona-scan-log-r14.csv
• thermal-overlay-r14.png
• corona-classification-r14.xlsx
• corona-inspection-report-r14.pdf
• cn-us-trade-lane-archive-row.csv

Timeline table

Indicative working-day timeline for one r14 cycle on the CN→US corridor, starting from receipt of the supplier QC release note and ending when the inspection report is filed against the US-side booking reference. Total envelope is ~10 working days (D0→D9). The envelope is generic; the working-day count must be re-validated against the OEM manual revision for the actual equipment family before scheduling.

Indicative cost slots (PENDING)

All cost slots below are PENDING pending HS classification and duty lookup. The TradVolt cost model is intentionally silent on a hard unit price until HS/duty is confirmed. HS/duty for a portable corona check service and for any associated HV test equipment falls under HTS 8504.40 (static converters) and HTS 8501.53 (AC motors, multi-phase, output > 75 kW) as candidate classes — to be confirmed at RFQ via the USITC Harmonized Tariff Schedule search (USITC HTS search) and the EU TARIC consultation (EU TARIC consultation). UK Global Tariff lookup: UK Global Tariff. WCO HS Nomenclature 2022 edition: WCO HS Nomenclature 2022 edition. No HS code or duty rate is published on this page.

Downloadable PDF checklist

The single-page checklist below mirrors the document list above so a field engineer can walk the r14 cycle without re-reading this guide. The PDF is generated from the same filename list as the on-page checklist, so a reviewer can diff the two. The download path is the RFQ site path because TradVolt does not maintain a /downloads/ site path.

Request PDF checklist via RFQ

Triggers a guide_pdf_download dataLayer event. Resolves to /rfq/ site path.

Request a quote

If your team needs to plan the r14 cycle for a specific CN→US shipment, the TradVolt trade-lane desk will collect the booking reference, the unit serial list and the OEM criteria (with manual revision identifier), and return a named quote for the slots above.

Request RFQ for HV corona check r14

FAQ