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Home interiors · Stage 8 of 15: First-fix wiring

First-fix electrical wiring checks in Kerala

By the Kolo home interiors team · Updated

Every conduit and box buried now is mapped only by this week's photos. The point count also gets reconciled against the overlay - the same points billed twice is a known pattern.

The checks at this stage (3)

  1. Photograph before this is covered

    What disappears at this stage: every concealed conduit, box and loop, once walls close and the ceiling grid goes up. It cannot be inspected again without breaking something, so the photos taken now are the only record that will ever exist. Skipping this stays on your handover record permanently.

  2. Load worked out before the wiring, not after

    Interior work adds hobs, ovens, geysers, ACs and a lot of lighting to wiring that was sized for none of them. The failure shows up as tripping months later, and the fix is the wall you have just finished.

  3. Conduit runs photographed before the walls close

    Once plastered and painted, the only record of where a cable runs is a photograph somebody remembered to take. Without it, the next person to drill a wall is guessing.

What good work looks like

Conduits clamped, boxes placed, then closed

Every run is clamped firm in its chase - not wedged with debris - and every box sits at the height the overlay states, checked with a tape before closing. Loose conduits shift and pinch wires; boxes at improvised heights meet furniture that was designed for the drawn ones.

Good signs
  • Runs clamped at intervals, nothing loose in the chase
  • Box heights taped and matched to the overlay
  • Every wall photographed with a room label before closing
Warning signs
  • Conduit wedged with broken brick and mortar
  • Heights eyeballed against the electrician's habit
  • Walls closed with no photo pass

The point count across two contracts

The overlay carries the full point list; the building contract may already include some of them in these rooms. The first-fix count is reconciled against both before billing - the same points built once and billed twice is the most common interior overlap, and only the owner holds both papers.

Good signs
  • The point list reconciled against both contracts
  • Additions logged with a reason before they are built
  • The billed count matching the photographed count
Warning signs
  • Points billed in the interior scope the building already owns
  • Extra points appearing at billing, unlogged
  • Nobody holding both papers at once

Wire and switchgear identity at the coil

Wire brand, size and marking print on the coil label; conduit brands print on the pipe; switchgear series prints on the carton. All of it is checkable at delivery against the spec sheet - and none of it is checkable once pulled through walls and finished over. The gate is the moment.

Good signs
  • Coil labels photographed against the spec
  • Conduit and switchgear branding verified at delivery
  • The right sizes going to the right circuits
Warning signs
  • Unlabelled coils accepted at the gate
  • A series swap at the same brand passing unnoticed
  • Verification deferred to after the walls close

Red flags and money traps

The point count that pays twice

The building contract may already include points in these rooms; the interior scope may bill them again. The overlay is the referee - the first-fix count reconciles against both contracts before any bill is honoured.

Reconcile: Billed points against the overlay and the building contract - the photo count decides.

The coil label is the only proof

Wire brand and size print on the coil, switchgear series on the carton - all checkable at delivery, none checkable after the pull. A series swap at the same brand is invisible at the faceplate and priced into the quote you accepted.

At delivery: Coil labels and cartons photographed against the spec, before anything is pulled.

Conduit runs photographed before the walls close

Photograph every wall and ceiling with the conduit exposed, with something in frame for scale, before plastering. Keep them with the house documents. This costs ten minutes and is the difference between a future job being routine and being exploratory.

Trade practice, not a code: Established trade practice; NBC 2016 Part 8 for maintainability of concealed services

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