Old fuse panels and overfusing

Assess older panels, protection, incorrect fuses and exposed energized parts before adding loads or renovating.

VERT / GREEN = documenter · JAUNE / YELLOW = vérifier · ROUGE / RED = arrêter/faire valider.

Accessible energized parts
Do not open/handle; obtain inspection. Oversized/bypassed fuse
Stop using the circuit until professionally corrected. New loads planned
Check capacity and protection before connection. Panel identified and maintained
Keep photos and circuit inventory.

What the professional checks

Check shock/overcurrent protection
Assess capacity, condition and replacement need

Official sources

ESA Ontario — anciens panneaux à fusibles

Checked: 2026-08-22

Tools related to this issue

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V15

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V31

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V31 helps verify systems after work and document the values that make a home safer to operate.

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V32

Post-disaster and legacy systems

V32 connects contamination, storm damage, legacy materials and recommissioning before rebuilding.

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