The panel schedule, read circuit by circuit.
Three of the ten Ontario rules filed under electrical are answered by reading the drawing. The other seven are printed for you to check by hand. This page names both sets, because the split is the part that decides whether the number above it means anything.
What the engine reads off an electrical sheet
Every reader runs on every file, whichever trades you scope the audit to. Choosing electrical decides which rules get reported. The panel schedule is read either way.
Panel schedules, as tables
Both sides of a two-sided panel, circuit by circuit, with the breaker rating and pole count each circuit is drawn with. A schedule split across two sheets is still read as one panel.
Connected load, converted
Load stated in VA, watts or kVA becomes amperes using the panel’s own voltage and the circuit’s poles. A panel that states no voltage comes back marked unchecked, because a guessed voltage is how a 600V panel gets a false overload.
Devices, counted where they are
Receptacles, switches and alarms are counted from the device tags on the electrical sheets only, which is what stops an “S” on a structural sheet being counted as a switch.
Ten Ontario rules, and which of them read the drawing
Answered from the drawing means the check reaches a pass or a fail from what was extracted. Checklist means the rule is printed with its clause for a person to confirm. Both are useful on a permit set, and only the first is a finding.
| Clause | What it requires | How it is answered |
|---|---|---|
| OESC 2024 Rule 8-104 | Continuous load on a branch circuit stays at or under 80% of the breaker rating | From the drawing |
| OESC 2024 Rules 8-200, 8-202 | The service is rated for at least the load the drawing’s own calculation arrives at | From the drawing |
| OBC 2025 Article 9.10.19.1 | Smoke alarms on every storey and in each sleeping room | From the drawing |
| OBC 2025 Article 9.10.19.6 | Carbon monoxide alarms adjacent to sleeping areas where a fossil-fuel appliance is served | Checklist |
| Ontario Fire Code 2025 Article 6.8.1 | Carbon monoxide detectors adjacent to sleeping areas with a fossil-fuel appliance | Checklist |
| Ontario Fire Code 2025 Article 6.8.2 | Interconnected smoke alarms in residential occupancies | Checklist |
| Ontario Fire Code 2025 Article 6.8.3 | Smoke alarm on every storey and in each sleeping room | Checklist |
| TGS Version 4 — EC 1.1 | EV-ready parking: conduit and panel capacity for Level 2 charging | Checklist |
| TGS Version 4 — RE 1.1 | Solar-ready roof: structural and electrical provision for future PV | Checklist |
| TGS Version 4 — RE 1.2 | Battery storage ready: space and rough-in for home energy storage | Checklist |
Counts and clauses are exported from the rule packs themselves, by the same function the trade picker inside Blueprint Auditor calls.
What the other packs carry
Ontario is the deepest pack because it is where the rules were written first. Elsewhere the electrical rules are the two that read the drawing: the branch-circuit limit and the service rating. Each column shows what that pack holds today.
| Pack | Electrical rules | Answered from the drawing |
|---|---|---|
| Ontario | 10 | 3 |
| British Columbia | 2 | 2 |
| National Building Code (Canada) | 2 | 2 |
| California | 2 | 2 |
| Florida | 2 | 2 |
| New York City | 2 | 2 |
| IRC (model code) | 2 | 2 |
| England | 0 | 0 |
England’s pack is Approved Documents B, K, M and Part L. It carries no electrical rules yet, and the trade picker says so before you scope an audit to it.
The Division 26 scope a quote gets checked against
Bid Leveler holds a published checklist per trade, and levelling three electrical quotes means asking each of them the same thirteen questions. Nine are marked critical: a quote can drop one of those and the bid form will still look complete.
- 26 24 00 Service entrance and distribution
- 26 05 19 Branch wiring and devices
- 26 51 00 Lighting fixtures — supply
- 26 09 23 Lighting controls
- 28 31 00 Fire alarm system
- 26 32 13 Emergency power and generator
- 27 10 00 Low voltage, data and communications
- 26 05 26 Grounding and bonding
- 26 05 00 ESA inspection and permits
- 26 05 00 Utility coordination and connection charges
- 26 05 00 Connections to mechanical equipment
- 26 05 36 Cable tray and raceway
- 26 05 43 Trenching, ductbank and backfill
Scope checklist revision 2026.1, sourced for Toronto and the GTA. It describes what a quote in that market leaves out; elsewhere, treat it as a starting list.
Said before you pay for it
- Home runs are traced where the drawing draws them. A single-line diagram with no circuit routing gives the panel and the service, and no cable lengths.
- Low-voltage and security cable paths are a separate trade, and it is still in development: one rule with a reader behind it.
- Nothing here is an ESA review or a permit approval. It is the first pass an experienced estimator makes, done in minutes and cited to the clause.
- A scanned electrical sheet with no text layer is read by OCR, and OCR on a dense panel schedule is the weakest part of this path. The audit says which pages it fell back on.
Bring the hardest set you have.
A real electrical set off a live job. The audit runs in minutes and every finding carries the clause and the sheet, so you can check the ones you disagree with.