BAS-301 Evidence Workbook
Professional evidence workbook
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Transformer/fuse/secondary load diagnosis
Required artifact: VA/load/voltage-drop calculation, fault cause, protection decision
| Identity, source, mode, authority | |
|---|---|
| Hazards, impacts, prohibited actions, stop criteria | |
| Expected normal and acceptance basis | |
| As-found evidence and timestamps | |
| Calculations with units and reasonableness | |
| Hypotheses, contradictions, discriminating test | |
| Action, expected result, abort/rollback | |
| Result, changed case, restoration, as-left | |
| Open risk, owner, due date, defense |
Voltage walk on an open control circuit
Required artifact: expected/actual at test points, isolated segment
| Identity, source, mode, authority | |
|---|---|
| Hazards, impacts, prohibited actions, stop criteria | |
| Expected normal and acceptance basis | |
| As-found evidence and timestamps | |
| Calculations with units and reasonableness | |
| Hypotheses, contradictions, discriminating test | |
| Action, expected result, abort/rollback | |
| Result, changed case, restoration, as-left | |
| Open risk, owner, due date, defense |
Voltage-drop hunt across a safety chain
Required artifact: readings across each device, open/high-resistance distinction
| Identity, source, mode, authority | |
|---|---|
| Hazards, impacts, prohibited actions, stop criteria | |
| Expected normal and acceptance basis | |
| As-found evidence and timestamps | |
| Calculations with units and reasonableness | |
| Hypotheses, contradictions, discriminating test | |
| Action, expected result, abort/rollback | |
| Result, changed case, restoration, as-left | |
| Open risk, owner, due date, defense |
Relay/contact/RIB control-circuit diagnosis
Required artifact: coil/contact/load trace; SPDT/DPDT state; correct control-circuit location
| Identity, source, mode, authority | |
|---|---|
| Hazards, impacts, prohibited actions, stop criteria | |
| Expected normal and acceptance basis | |
| As-found evidence and timestamps | |
| Calculations with units and reasonableness | |
| Hypotheses, contradictions, discriminating test | |
| Action, expected result, abort/rollback | |
| Result, changed case, restoration, as-left | |
| Open risk, owner, due date, defense |
Starter/overload/single-phasing evidence
Required artifact: phase current/voltage comparison, mechanical/electrical branches
| Identity, source, mode, authority | |
|---|---|
| Hazards, impacts, prohibited actions, stop criteria | |
| Expected normal and acceptance basis | |
| As-found evidence and timestamps | |
| Calculations with units and reasonableness | |
| Hypotheses, contradictions, discriminating test | |
| Action, expected result, abort/rollback | |
| Result, changed case, restoration, as-left | |
| Open risk, owner, due date, defense |
VFD HOA, fault, reference, run-permissive, proof chain
Required artifact: code/manual lookup, terminal evidence, command-to-process trace
| Identity, source, mode, authority | |
|---|---|
| Hazards, impacts, prohibited actions, stop criteria | |
| Expected normal and acceptance basis | |
| As-found evidence and timestamps | |
| Calculations with units and reasonableness | |
| Hypotheses, contradictions, discriminating test | |
| Action, expected result, abort/rollback | |
| Result, changed case, restoration, as-left | |
| Open risk, owner, due date, defense |
Motor-control fault-board gauntlet
Required artifact: three fault records, correction route, restoration, service ticket
| Identity, source, mode, authority | |
|---|---|
| Hazards, impacts, prohibited actions, stop criteria | |
| Expected normal and acceptance basis | |
| As-found evidence and timestamps | |
| Calculations with units and reasonableness | |
| Hypotheses, contradictions, discriminating test | |
| Action, expected result, abort/rollback | |
| Result, changed case, restoration, as-left | |
| Open risk, owner, due date, defense |