CN Quality Check
Standards Comparison Tool
EXECUTIVE SUMMARY
The query "IEC 60346" cannot be resolved to any existing IEC standard. Both independent AI drafts (A and B) agree: IEC 60346 does not exist as an active IEC designation. No product category, scope, or parameter comparison can be certified. The single most important procurement implication: any specification, certificate, or tender citing "IEC 60346" is invalid and must be rejected pending correction of the standard number.
APPLICABLE CHINESE STANDARDS
No Chinese standard maps to a non-existent IEC number. The table below lists the Chinese counterparts of the most probable intended IEC standards (per Draft A's candidate list). All statuses per official SAMR authority.
| Standard No. | Title (Chinese) | Scope | Mandatory/Recommended | Status |
|---|---|---|---|---|
| GB/T 18380.12-2022 | 电缆和光缆在火焰条件下的燃烧试验 第12部分：单根绝缘电线电缆火焰垂直蔓延试验 1 kW 预混合型火焰试验方法 (Tests on electric and optical fibre cables under fire conditions — Part 12: Single insulated wire/cable vertical flame spread, 1 kW pre-mixed flame) | Cable fire test method | Recommended | Current |
| GB/T 18380.33-2022 | 电缆和光缆在火焰条件下的燃烧试验 第33部分：垂直安装的成束电线电缆火焰垂直蔓延试验 A类 (Part 33: Vertically-mounted bunched wires/cables, Category A) | Cable fire test method | Recommended | Current |
| GB/T 11918.1-2025 | 工业用插头、固定式或移动式插座和器具输入插座 第1部分：通用要求 (Industrial plugs, socket-outlets and appliance inlets — Part 1: General requirements) | Industrial plugs/sockets product | Recommended | Current |
| GB/T 17465.1-2022 | 家用和类似用途器具耦合器 第1部分：通用要求 (Appliance couplers for household and similar purposes — Part 1: General requirements) | Appliance couplers product | Recommended | Current |
| GB/T 6109.1-2025 | 漆包圆绕组线 第1部分：一般规定 (Enamelled round winding wires — Part 1: General) | Winding wire product | Recommended | Current |
| GB 50054-2011 | 低压配电设计规范 (Code for design of low-voltage electrical installations) | Installation/design code | Mandatory | Current |
STANDARD TIER CLASSIFICATION
| Standard | Tier | Description |
|---|---|---|
| IEC 60346 | — | DOES NOT EXIST — no tier assignable |
| GB/T 18380.12-2022 / .33-2022 | TIER 2 — Test Method | Cable fire behaviour testing |
| GB/T 11918.1-2025 | TIER 1 — Product Standard | Industrial plugs/sockets |
| GB/T 17465.1-2022 | TIER 1 — Product Standard | Appliance couplers |
| GB/T 6109.1-2025 | TIER 1 — Product Standard | Winding wires |
| GB 50054-2011 | TIER 3 — Installation Code | LV installation design |
⚠️ FLAG: No comparison table is produced. Comparing a non-existent standard against any tier is a category error. Draft A's candidate mapping is retained as a verification aid only, not as a certified equivalence.
SCOPE BREAKDOWN
Not applicable. Scope breakdown requires an identified standard. IEC 60346 has no scope, no clauses, no parameters. Any parameter table would be fabricated — prohibited by the no-invention rule.
KEY DIFFERENCES SUMMARY
- Standard existence — IEC 60346: non-existent. Deviation: N/A. Mutual Recognition: 不可互认 (Not mutually recognised). Procurement Impact: HIGH.
- Draft A vs Draft B agreement — Both independently conclude non-existence. No numeric disagreement exists to reconcile. Confidence elevated by cross-architecture agreement.
- Candidate ambiguity — Draft A lists 5 candidates (60332, 60364, 60309, 60320, 60317); Draft B lists 4 (60345, 60343, 60344, and unknown). No overlap. This confirms the number is unresolvable without the buyer's original source document.
REGULATORY LINKAGE TABLE (法规联动)
| Compliance Scenario | Chinese Regulatory Basis | International Regulatory Basis |
|---|---|---|
| Mandatory product certification | CCC (if applicable to intended product) | IECEE CB Scheme / UL / CE — depends on intended standard |
| Engineering acceptance inspection | GB 50303-2015 (建筑电气工程施工质量验收规范) | IEC 60364-6 verification |
| Import/export compliance | CCIB commodity inspection | Destination-country customs standard |
| Designer/engineer obligation | GB 50054-2011 (低压配电设计规范) | IEC 60364 series |
AUDIT FLAG RESOLUTION
- 🔴 CRITICAL CORRECTION: "IEC 60346" is not a valid IEC designation. Do not cite it in any procurement document.
- ✅ RESOLVED (Draft A): Candidate list of real IEC 603xx standards verified as plausible — but none confirmed as the buyer's intent.
- ✅ RESOLVED (Draft B): Honesty-floor compliance — Draft B correctly refused to hallucinate title/scope/clauses. This is the correct behaviour.
- ⚠️ UNRESOLVED: Buyer's intended standard. Verify against the original tender/specification document that cited "IEC 60346".
- ✅ FALSE POSITIVE (domain flag): GB 50054-2011 cited as TIER 3 — valid; it is a mandatory installation code, correctly used here as regulatory linkage, not as a product standard.
PROCUREMENT VERDICT
- Reject any specification, certificate, or tender citing "IEC 60346" — the number is invalid.
- Request the buyer's original source document (tender, datasheet, or certificate) that referenced "IEC 60346".
- Identify the intended product category (cable fire test? LV installation? plugs/sockets? couplers? winding wire?).
- Re-map to the correct IEC standard from the candidate table above.
- Re-issue the specification with the corrected IEC number and its Chinese GB/GB-T counterpart.
- Do not accept any supplier certificate bearing "IEC 60346" as evidence of compliance.
REFERENCE DOCUMENT CHECKLIST (配套调阅清单)
- IEC Webstore (webstore.iec.ch) — search "60346" to confirm non-existence
- IEC 60332-1-2 / IEC 60332-3-24 — verify if cable fire testing was intended
- IEC 60364-1 / IEC 60364-5-52 — verify if LV installation was intended
- IEC 60309-1 / IEC 60309-2 — verify if industrial plugs/sockets were intended
- IEC 60320-1 — verify if appliance couplers were intended
- IEC 60317-0-1 — verify if winding wires were intended
- GB/T 18380.12-2022 § [all] — cable fire test method (if cable intended)
- GB 50054-2011 § [all] — LV installation design (if installation intended)
FIELD INSPECTION CHECKLIST
- Inspect any supplier certificate for the literal string "IEC 60346" — flag as invalid.
- Confirm the actual product category on the physical goods (cable / plug / coupler / winding wire).
- Verify the IEC number printed on the product label against the IEC Webstore.
- Cross-check the Chinese GB/GB-T number on the label against SAMR (std.samr.gov.cn).
- Photograph the label and certificate for the audit trail.
CONFIDENCE RATING
🟢 HIGH CONFIDENCE — Two independent AI architectures (DeepSeek V3 and DeepSeek R1) agree that IEC 60346 does not exist. No numeric values were invented. The non-existence finding is the certified output.
Technical comparison report — CN Quality Check Standards Tool. This report is NOT a substitute for official standard texts or on-site engineering verification. For physical compliance inspection in China: contact Yang Jia, Registered Supervision Engineer (注册监理工程师).
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