Electric Shock and Fall in Santa Rita: The Union of NR 10 and NR 35

Combining electricity and high-altitude tasks represents one of the most lethal scenarios in the construction sector. On the afternoon of Wednesday, July 8, 2026, a severe workplace accident in Santa Rita, located in the metropolitan area of João Pessoa (PB), took the life of 49-year-old worker Marcos Antônio de Lima. Handling a steel rebar that accidentally brushed against external high-voltage lines resulted in an immediate shock and a subsequent 6-meter fall. This tragedy underscores the critical need for integrated compliance with NR 10 and NR 35.

The Incident: Electrocution and Fall at Construction Site

The accident occurred during structural construction tasks on a private renovation in Santa Rita. Marcos Antônio was working on the upper level, about six meters above the ground, handling a steel reinforcement bar. Because the building facade sat extremely close to public overhead power lines, the metal bar accidentally touched a medium-voltage conductor.

The severe electrical discharge caused the worker to instantly lose consciousness and balance, causing him to fall over the edge of the building platform. Marcos fell onto the public sidewalk. Emergency medical responders (SAMU) arrived promptly but could only declare him deceased. The medical examiner confirmed the cause of death as severe traumatic brain injury (TBI) from the impact of the fall, alongside electrical entry and exit injuries.

The Military Police isolated the scene, and technicians from the local power company (Energisa) cut the power to ensure safety for investigators. The property owner and construction manager face formal investigation by the Civil Police and the Ministry of Labor.

The Crucial Intersection of NR 10 and NR 35 Regulations

Many fall-from-height accidents on construction sites are triggered by secondary hazards, such as electrical shocks. In these cases, safety managers must address multiple regulatory standards simultaneously:

Dangerous proximity between external medium-voltage lines and the building structure: high risk of electric shock and arcing.

1. Safety Distances and Physical Barriers (NR 10)

NR 10 (Safety in Electrical Installations and Services) defines a strict "boundary zone" around energized lines. Annex I of this standard establishes clear minimum safety clearances that construction operations must maintain from overhead wires. For medium-voltage grids (typically 13.8 kV), no task involving long metallic elements (like steel bars, aluminum profiles, or pipes) should be performed without:

• Structural Shielding: Installing certified insulating barriers or screens to prevent any physical contact between materials and power lines.
• Temporary Disconnection: Arranging with the power utility provider to temporarily shut down or shield the lines during concrete pours and steel framing stages.
• Formal Training: Ensuring all workers operating close to utility grids hold active basic NR-10 electrical safety certificates.

2. Active Fall Arrest Protection (NR 35)

Even if an electrical shock or sudden illness occurs, the worker's fall to the ground must be prevented. NR 35 mandates that for any height work above 2 meters where a fall hazard exists, a Personal Fall Arrest System (SPIQ) must be deployed.

Safe connection of full-body harness to an independent steel cable lifeline via a fall arrester (NR-35 compliance).

The worker should have been wearing a full-body safety harness connected via a lanyard or fall arrester to an independent lifeline or structural anchor point. Had this system been correctly implemented, the loss of consciousness would have left the worker suspended safely in mid-air, allowing for rope-rescue operations instead of a fatal impact on the sidewalk.

Collective Protection: Safety Netting (EPC)

Deploying Collective Protection Equipment (EPC) like **building safety netting** is another vital redundancy measure. Catch safety netting systems installed along the building perimeter intercept falling workers, dissipating kinetic energy and limiting fall distances.

These nets, made of high-tenacity polyethylene or polyamide and certified under the European standard EN 1263-1, act as a structural safety basket capable of arresting heavy dynamic loads. They safeguard the workers and prevent tools from falling onto pedestrians below.

Civil and Criminal Liability in Construction Violations

Under Brazilian law, contractors and property owners carry both civil and criminal liability for workplace accidents caused by non-compliance with safety codes. Failing to provide certified protective gear, lack of mandatory training (NR-10 and NR-35 certs), or neglecting to request utility grid shielding constitutes gross negligence, exposing managers to civil lawsuits and involuntary manslaughter charges.