Forensic-grade electric charger survey documentation
EV·Surveys walks your engineer through a full commercial charger survey: photos, measurements, board details and cable runs, captured offline where there's no signal. Every photo is hashed and signed the moment it's taken, and one tap exports the DNO-ready evidence pack and a costed estimate. No second visit to measure what got missed.
SHA-256 9F2C 71A8 D34B 0E59 8C12 F7D0 4A6E B391
Hashed at capture · Signed on device · Timestamped
STEP 1 / 12
SITE NAME
ADDRESS LINE 1
TOWN / CITY
POSTCODE
Live recreation of step 1 · Site setup
Every original is written once and never edited. The app hashes it at capture, signs it with the device key, anchors it to a trusted timestamp, and exports the lot with its ledger. Nobody has to take your word for anything.
Hash ledger · EXG Depot · extract
| 0041 | IMG_0041.DNG | 9F2C 71A8 … B391 | 14:02:11Z | SIGNED ✓ |
| 0042 | IMG_0042.DNG | 77AD 0C44 … 1E60 | 14:02:38Z | SIGNED ✓ |
| 0043 | VID_0043.MP4 | B30E 59C1 … 88AF | 14:05:02Z | SIGNED ✓ |
This is the survey as your engineer runs it, from the car park to the signed pack. As each step completes, photos feed the evidence checklist and priced lines feed the bill of materials. Watch the readout below build as you scroll.
STEP 01 / 12
The site and its point of contact. One tap on the postcode lookup fills the structured address and coordinates; the contact takes a name, email and phone. Zero typing friction at the gate, gloves still on.
POSTCODE LOOKUP
STEP 02 / 12
Board location and photos, the main fuse rating and photos, and mobile signal strength with the connection type detected automatically. The supply's limits are photographed and on record before anything is promised.
BS 7671 · SECTION 722 CHECKLIST
STEP 03 / 12
Earthing arrangement and EV protection to BS 7671 section 722: earthing system, open-PEN protection on a PME supply, RCD type, bonding, Ze and PFC. The regulatory deep end, run as a guided checklist instead of memory. Anything unproven stays flagged until it is verified.
STEP 04 / 12
Charge points enter as catalogue groups, a unit plus a count, so one site can mix unit types. Each unit's per-phase current drives a live supply-load check against the board. The app does the load maths while you stand at the wall.
SUPPLY-LOAD CHECK · PER PHASE
PAYMENT DUTY · DECISION PATH
STEP 05 / 12
Public charge points rated 8 kW or above must offer ad-hoc contactless payment under the Public Charge Point Regulations 2023. A regulation most installers have not memorised, resolved in one screen: a bank of points takes a single kiosk, a lone point takes a per-unit module, a private site carries no duty. Hardware enters the estimate only when the surveyor confirms it.
STEP 06 / 12
One run per charge point: a label, conductor CSA, design current and install-method segments. Volt drop is computed live, per run, on site. Not discovered back at the desk.
| RUN | CSA | DESIGN | LENGTH | VOLT DROP | STATUS |
|---|---|---|---|---|---|
| BAY-01 | 6.0 mm² | 32 A | 38 m | 2.4% | CONFIRMED |
| BAY-02 | 6.0 mm² | 32 A | 44 m | 2.8% | CONFIRMED |
| BAY-04 | 6.0 mm² | 32 A | 61 m | 4.6% | VERIFY BEFORE QUOTE |
STEP 07 / 12
The cable route broken into lengths by surface, with notes and photos for the whole route. Two metres of soft dig is not two metres of concrete; knowing the surface is the difference between a profitable quote and an expensive surprise.
ROUTE · 4.0 M BY SURFACE
+5 PHOTOS · WHOLE ROUTE
STEP 08 / 12
Floor lines, charge point and wayfinding signage, height restrictions and bollard provision, captured as a note plus photos. The items that fail a commercial handover if forgotten.
+4 PHOTOS TO LEDGERSTEP 09 / 12
Accessible charging provision to PAS 1899, plus the RAMS and asbestos basics a commercial job needs. The pre-start paperwork, started on site.
PAS 1899 · RAMSSTEP 10 / 12
Extra line items pulled from the company catalogue, each priced into the estimate and quote. Nothing on the job is off the books.
+2 BOM LINESSTEP 11 / 12
Freeform survey notes and an optional site walkthrough video: the context a photo can't carry, captured while it is in front of you.
WALKTHROUGH.MP4 · 02:41
HASHED · SIGNED · IN LEDGER
STEP 12 / 12
A read-only summary of the whole draft, checked against the required-evidence checklist: which sections have enough photos to make a credible pack. Complete it, and the survey is signed and ready to export.
REQUIRED-EVIDENCE CHECKLIST
EXG Depot · 4-bay workplace install
Plant rooms, basements and depot edges rarely have a usable mobile signal, so the whole survey runs offline: capture, hashing and signing all happen on the device, with no data connection needed. The trusted timestamp anchors later, automatically, once you are back in signal. Nothing waits for a connection, and nothing is lost without one.
A 25-minute demo on a real survey: capture, load check, volt drop, and the exported pack with its hash ledger.