HV Switching Sheet or Access / Test Permit

Completed high-voltage switching sheets (switching programs) and Access / Test Permits for electrical apparatus, in the form used by Queensland electricity entities under the Queensland Electricity Entity Standard for Safe Access to High Voltage Electrical Apparatus (SAHVEA, Nov 2023). SAHVEA cl 7.3 requires a switching sheet to carry a unique reference number, the apparatus, step-by-step switching to isolate, prove de-energised and earth, the completion time of each step, isolation points and DNOBs, Operator Earth locations, and the issue, surrender and cancellation of permits. SAHVEA cl 9.2 requires an Access / Test Permit to carry the associated Switching Sheet number, Work Area, issue and surrender times, the Switching Co-ordinator, Nearby Exposed Live HV/LV and an Abnormalities Section. Populated sheets expose isolation points, equipment identifiers, network configuration and work schedules. SAHVEA itself, ENA DOC 003, blank forms and training material are decoys. "Sanction for test" and "vicinity authority" are not SAHVEA terms and are not used as anchors.

Type: regex
Engine: boost_regex
Confidence: medium
Confidence justification: Medium: Switching Sheet and Access / Test Permit are SAHVEA defined terms, but "access permit" and "test permit" also appear in unrelated contexts (building access, vehicle testing). Enforcement therefore needs a populated switching step with an electrical equipment token, or a populated permit field together with HV isolation vocabulary. Sheet and permit number formats are not public (SAHVEA only requires them to be unique), so number fields are anchored on the label with a loose value. "Switching program" is general industry usage outside Queensland and is not a SAHVEA term. 85/75 are heuristic evidence tiers, not measured accuracy; test values are synthetic.
Jurisdictions: au, au-qld
Regulations: Electrical Safety Act 2002 (Qld), Electrical Safety Regulation 2013 (Qld), Queensland Electricity Entity Standard for Safe Access to High Voltage Electrical Apparatus (SAHVEA, Nov 2023) cl 7.3, 9.2, Security of Critical Infrastructure Act 2018 (Cth)
Frameworks: ISO 27001
Data categories: infrastructure, security, operational
Scope: narrow
Risk rating: 8
Platform compatibility: Purview: Compatible, GCP DLP: Compatible, Macie: Compatible, Zscaler: Compatible, Palo Alto: Degraded, Netskope: Unsupported

Pattern

(?i)\b(?:switching\s+(?:sheet|program(?:me)?)s?|access\s*/\s*test\s+permits?|access\s+permits?|test\s+permits?)\b

Corroborative evidence keywords

DNOB, Operator Earth, Working Earth, Isolation Point, Nearby Exposed Live, Abnormalities Section, substation, circuit breaker, de-energised

Proximity: 300 characters

Should match

Switching Sheet No: SS-26-04417 Apparatus: 33 kV Feeder F412 Kellyvale Substation Step 1 06:42 Open 33 kV CB 4122 (A) - attach DNOB Step 2 06:48 Rack out CB 4122 and place DNOB on isolator 4122-1 (B) Step 3 06:55 Earth 33 kV feeder F412 at earth switch 4122-ES, Operator Earth (C) Access Permit No: AP-26-1180 issued to Recipient: Jordan Pellicott — Populated switching sheet with timed steps, sheet number, permit reference and recipient - intended 85
Access / Test Permit Permit No: TP-88213 Recipient: Casey Marrowby Work Area: Bay 6, 132 kV busbar section 2, Tarrin substation Isolation Points: CB 6052 (D), isolator 6052-2 (E). Operator Earth applied at earth switch 6052-ES. Nearby Exposed Live HV: 132 kV bus section 1 adjacent. — Populated Access / Test Permit with permit number, recipient, work area and isolation points - intended 75 (fields, no step lines)
Switching program for tomorrow's transformer outage at Mount Orrin: 1. Open 11 kV CB 12T2 and attach DNOB 2. Open isolator T2-11 and prove de-energised — Two numbered switching step lines without sheet or permit fields - intended 75
Test Permit TP-4410 surrendered. Surrendered by: Riley Vantongeren at 15:20 All Working Earths removed; permit returned to the Switching Co-ordinator. — Populated surrender field with HV evidence - intended 75

Should not match

A Switching Sheet Shall include the following:- a) a unique reference number b) the identification of the Electrical Apparatus to be worked on c) the description of work to be carried out d) all Switching required (step by step) to isolate, prove De-energised, and earth the Electrical Apparatus where access / test is required — SAHVEA cl 7.3 text (standard decoy) - 65 only
Switching Sheet No: __________ Apparatus: __________ Step | Time | Operation | Apparatus | Initials Access Permit No: __________ Recipient: __________ Switching Co-ordinator: __________ — Blank switching sheet and permit form - must not reach 75
Authorised person refresher - training exercise. Read the example switching sheet and identify the Isolation Points: Step 1 Open 11 kV CB 101, Step 2 Earth feeder 101. — Training material with example steps (fixture exclusion) - must not reach 75
Car park access permit No: CP-2231 issued to Sam Holloway for Level 2 of the Kelvin Grove office building. — Unrelated building access permit (no HV evidence) - must not reach 75
Crews used a detailed switching program to restore power to 4,000 homes after the storm, the network said in a media statement. — News mention - 65 only

Known false positives

SAHVEA, ENA DOC 003 and other safe-access standards and procedures that list the required contents of sheets and permits. Mitigation: Enforce tiers need populated step lines or permit fields, and carry a standard/guidance exclusion group.
Blank switching sheet and permit forms. Mitigation: Underscores, square and angle brackets and n/a/tbc values are rejected by the field guard; column headings are not step lines.
Unrelated access or test permits (building access, parking, vehicle or equipment testing). Mitigation: A permit field reaches 75 only together with HV isolation vocabulary; step lines need an electrical equipment token.
Authorised person training and assessment material with example switching. Mitigation: Template-exclusion and the authorised-person/training exclusion keep it below 75.