Older electric radiant ceiling: before drilling or demolition

Identify heating cables potentially embedded in plaster before drilling, lighting, partitions or demolition.

VERT / GREEN

Identify thermostat, circuits and heated zones without random opening.

JAUNE / YELLOW

Older systems used electric heating cables embedded in plaster; ceiling work should begin by identifying the system.

ROUGE / RED

Drilling/cutting a heated ceiling, electrical fault or damaged cable: de-energize and use a qualified electrician.

Quick triage

Thermostat controls ceiling heatDrilling/demolition plannedCable may be damagedSystem identified and no intrusive work

What the professional checks

The electrician checks circuits, insulation, protection, thermostat, continuity and compliant removal/abandonment under current code.

Official sources

CNRC — Residential Standards, référence historique aux câbles noyés

Checked 2026-08-23

Tools related to this issue

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