Manufacturing, Testing & Quality
Cable Assembly Testing Methods
Testing should follow the wiring table, method, fixture, values, dwell time, pass/fail limits, and record format supplied with the project. Common checks include continuity, polarity, hi-pot, insulation resistance, functional, visual, dimensional, and packing inspection.
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Decision summary
What to carry into the decision
- A test name is incomplete without method, fixture, values, limits, timing, frequency, and record format.
- Use continuity and polarity to check the wiring definition; use other electrical or functional methods only when their parameters are supplied.
- Separate first-article, lot, unit, and shipment-record expectations.
In this guide
- 1Direct answer
- 2Common test methods
- 3RFQ checklist
- 4Match tests to the assembly
- 5Test‑definition table
- 6Common test‑plan gaps
Use the sections in sequence, then turn the open items into one controlled build or sourcing package.
Direct answer
Name each required test in the RFQ and include the method, fixture, voltage or pressure, dwell time, pass/fail limit, and record format when those details affect the quote.
Common test methods
The drawing and application determine the inspection plan and required tests for the assembly.
| Continuity and polarity | Circuit identity, pinout, orientation, and wiring-table checks. |
|---|---|
| Hi‑pot and insulation | Voltage, dwell time, leakage or resistance limits, and fixture needs when specified. |
| Functional | Equipment-specific procedure, signal or load condition, and pass/fail limits supplied by the project. |
| Visual and dimensional | Connector seating, labels, cable length, molded geometry, surface finish, and packing. |
RFQ checklist
Testing requests should be precise enough for quotation and production planning.
- Wiring table or pinout with circuit names and connector orientation.
- Test method with values, dwell time, fixture, pass/fail criteria, and record format.
- Visual, dimensional, label, packing, and sample approval criteria.
- Whether records are needed for every unit, every lot, first article, or shipment only.
Match tests to the assembly
The quoted drawing, wiring table, test method, fixture, limits, sampling, and record format define the checks for each assembly.
Test-definition table
Complete every column before the check is released to production.
| Purpose and scope | Circuit, feature, risk, assembly revision, and stage covered by the test. |
|---|---|
| Method and fixture | Connections, sequence, equipment or fixture, setup, and sample condition. |
| Parameters and limits | Voltage, current, pressure, time, cycles, dimensions, pass/fail values, and units. |
| Frequency and record | Per unit, sample, lot or shipment; required fields, identifier, format, and disposition. |
Common test-plan gaps
A drawing note that says test or 100% test does not identify the method. Another frequent gap is requesting a report without defining which values, identifiers, units, revision, and acceptance decision the report must show.
