Most Electrical Accidents at Construction Sites Occur Without Direct Contact With Wires, Only Through the Proximity of Metallic Objects Within 2.5 Meters of Energized Lines

Written by Bruno Teles

Published on 05/09/2025 at 11:26

Segundo o jornal EXTRA, a maioria dos acidentes elétricos ocorre quando objetos metálicos se aproximam a menos de 2,5 metros da rede energizada, provocando choques fatais e incêndios.

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Constructions Within 2.5 Meters of the Power Line Increase Risk of Fatal Shocks and Fires; Enel Warns in Rio de Janeiro

The majority of electrical accidents in construction and renovation do not occur from direct contact with wires, but from the simple proximity of ladders, rebar, antennas, or metal scaffolding to within 2.5 meters of the power line. This warning was issued in a report published by the newspaper EXTRA, which consulted experts and the utility company Enel Rio.

This type of accident is more common in areas of urban growth where constructions encroach upon the energy network without proper planning. In these situations, electrical induction can turn metal structures into conductors, causing severe shocks, burns, fires, and even fatalities.

Who Suffers Most From Electrical Accidents

According to Enel Rio, the municipalities of Niterói, São Gonçalo, Angra dos Reis, and cities in the Lakes Region are among those that register the most occurrences.

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How Much Distance Is Mandatory to Maintain

The technical rule is clear: every construction must maintain at least 2.5 meters of distance from the power line.

Any work below this limit is considered irregular and exposes workers and residents to a permanent risk of high voltage shock.

In outdoor activities, such as antenna installation, facade painting, or roof replacement, the recommendation is to inform the utility company in advance, which can schedule outages to prevent accidents.

The use of poles as support for ladders and scaffolding is prohibited by safety regulations.

Where Caution Must Be Increased

Within residences, prevention also requires attention.

The report from EXTRA emphasizes that any service should begin with turning off the main switch to avoid unexpected shocks.

Changing wiring or installing new outlets should be done only by qualified electricians, who ensure compliance with technical standards.

Improvisations with extensions, adapters, or exposed wires are among the leading causes of house fires.

Overloading outlets, using low-quality power strips, or handling paints and liquids near electrical sources are practices that increase risk.

Why Electrical Accidents Could Be Prevented

According to the specialist Ricardo Lima, responsible for Health and Safety at Enel Rio, most cases could be prevented with simple measures:

Project planning, adherence to distance regulations, and use of personal protective equipment (PPE).

He emphasizes that electrical accidents are not a matter of chance, but a consequence of carelessness that could be avoided with training and oversight.

The cost of hiring a qualified professional is always less than the risk of losing lives or suffering irreversible damage.

Electrical accidents remain one of the leading causes of deaths and fires in construction sites in Brazil, but most could be prevented with adequate distancing, planning, and adherence to regulations.

Raising awareness, combined with oversight, is the key to reducing occurrences that still claim lives every year.

Have you ever witnessed construction at risk due to being too close to the power line? Do you think inspections are sufficient, or is there still a lack of information for the population? Leave your opinion in the comments — we want to hear your experience up close.

Most Electrical Accidents at Construction Sites Occur Without Direct Contact With Wires, Only Through the Proximity of Metallic Objects Within 2.5 Meters of Energized Lines

Constructions Within 2.5 Meters of the Power Line Increase Risk of Fatal Shocks and Fires; Enel Warns in Rio de Janeiro

Who Suffers Most From Electrical Accidents

How Much Distance Is Mandatory to Maintain

Where Caution Must Be Increased

Why Electrical Accidents Could Be Prevented

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Most Electrical Accidents at Construction Sites Occur Without Direct Contact With Wires, Only Through the Proximity of Metallic Objects Within 2.5 Meters of Energized Lines

Constructions Within 2.5 Meters of the Power Line Increase Risk of Fatal Shocks and Fires; Enel Warns in Rio de Janeiro

Who Suffers Most From Electrical Accidents

How Much Distance Is Mandatory to Maintain

Where Caution Must Be Increased

Why Electrical Accidents Could Be Prevented

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