P2
1
E3D-APAM-RPT-002 · Board Condition Report · Board 53 of 67
DB-C11S
Apron field-lighting board
Status: Complete · Condition Index 26.3/100
1. Verdict & suitability
Assessment summary
Can house the new LED luminaires & controlsYES — universal
BasisLED load ≪ legacy HID; enclosure space & isolation adequate
Overall condition ratingRED — Major defect
P3
1
P4
3
Photos
16
0Condition Index 26.3100
Rated RED. The board can house the new LED works. Field condition records non-compliant working-space clearance.
2. Location
| GPS (lat, long) | -37.666697, 144.849331 |
| Zone / apron | To be confirmed against apron key-plan |
| Upstream source (parent DB / sub) | To be confirmed against airfield reticulation drawings |
| Inspected | 21–22 June 2026 |
3. Supply & electrical
As-built supply and cabling recorded on site. Visual / physical condition audit only — no electrical testing performed.
| Incoming supply & earthing | |
|---|---|
| Supplied from | DB-CCC |
| Upstream feeder | Sub 19 (ESS Item-16 / NE Item-8) |
| Upstream CB | B40 3P (iC60H) |
| Upstream CB way(s) | 20, 22, 24 |
| Sub-main cable size | 25mm² 4C+E |
| Phases | 3-phase |
| Line voltage | 400 V (L-L) |
| Phase-earth voltage | 230 V (L-N) |
| Earthing system | Reticulated |
| Upstream protection | Isolator only (no OCPD confirmed at board) |
| Supply cable schedule | |
|---|---|
| Active conductor size | 25 mm² |
| Configuration | 1x4C |
| Conductor arrangement | circular |
| Parallel sets | 1 |
| Conductor material | Copper |
| Insulation / type | PVC |
| Armour | Unarmoured |
| Installation method | Underground Enclosure |
| Conduit | 100 mm |
| Loaded circuits in conduit | 1 |
| Estimated depth | 0.5 m |
| Earth arrangement | Integral — 6 mm² |
| Approx. length | Not recorded |
4. Condition assessment
Scored per the Condition Scoring & Rating Model (six standards-referenced dimensions, 0–4 on the P-scale). Rating is gated — a single safety/structural P2 breach sets RED regardless of the averaged Index.
| Dimension | Score | Grade | Observation |
|---|---|---|---|
| Electrical safety & compliance | 0 | None observed | None observed |
| Structural & enclosure integrity | 1 | Minor (P4) | Enclosure & chassis mechanical integrity |
| Corrosion & protective coating | 1 | Minor (P4) | Corrosion of fixings, bars and coatings; general fouling |
| Ingress protection | 2 | Moderate (P3) | Sealing of penetrations against dust / water ingress |
| Access & working space | 3 | Major / safety (P2) | Door opening arc and working-space clearance |
| Thermal / fire & component | 0 | None observed | None observed |
Rationale. The gated rating is RED, driven by a non-compliant door / working-space clearance (AS/NZS 3000 Cl 2.10) and unsealed penetrations / ingress (Condition Index 26.3/100). RED reflects a gate breach — a safety/structural P2 or an AS/NZS 3000 Cl 2.10 clearance non-compliance — that cannot be averaged away.
5. Defects
Field-observed defect(s) for this board, itemised into discrete findings — each with its own priority and category.
| Ref | Category | Defect | Pri |
|---|---|---|---|
| D-01 | Housekeeping | Internal dust / dirt accumulation | P4 |
| D-02 | Corrosion | Minor surface rust to fixings and bars | P4 |
| D-03 | Corrosion | Minor pitting to enclosure / structure | P4 |
| D-04 | Ingress | Unsealed cable penetrations at base / gland plate | P3 |
| D-05 | Clearance | Non-compliant door / working-space clearance | P2 |
6. Suitability for the LED works
Suitability for LED worksYES
The new LED floodlight load and driver footprint are materially smaller than the legacy HID gear removed, and the existing 3-phase supply, 25 mm² feed and cabinet isolation are adequate for the new works. This conclusion is universal across the fleet and is independent of condition.
7. Photographic evidence
16 site photographs. Frames outlined in orange are keyed to a priority defect (fire, structural, access or ingress evidence).
