Lightning Protection and Surge Protection Devices (SPDs)

Wednesday, August 26, 2026

Time
9:00am–10:30am
Hall
2nd floor
Room
Cantareira 6


The session opens with an examination of the changes to risk analysis in NBR 5419-2:2026 and their impact on the definition of protection systems, while another presentation focuses specifically on the calculation of supplementary earth electrodes to mitigate surface voltages. The session also includes a focused discussion of protection criteria and end-of-life monitoring for SPDs.



9:00am–9:20amHow Changes to Risk Analysis in NBR 5419-2:2026 Impact on LPS

Prof. Dr. Roberto Zilles

Professor

Instituto de Energia e Ambiente da USP

Dr. Hélio Eiji Sueta

Deputy Head of Division

IEE USP

Jobson Modena

Director

GUISMO Engenharia

9:20am–9:40amThe Calculation of Supplementary Earth Electrodes to Mitigate Surface Voltages, According to NBR 5419-2:2026

Prof. Dr. Roberto Zilles

Professor

Instituto de Energia e Ambiente da USP

Dr. Hélio Eiji Sueta

Deputy Head of Division

IEE USP

Jobson Modena

Director

GUISMO Engenharia

9:40am–10:00amProtection Criteria and end-of-life Monitoring for SPDs

Sergio Roberto Santos

Electrical Engineer

Lambda Consultoria LTDA

Júlio Cesar Prato

Senior IT Analyst

Embrastec

Laís Pimentel

Electrical Engineer

Embrastec

Cleiton Busse

Engineering Manager

Embrastec

10:00am–10:30amQ&A

Speakers
Speaker
Jobson Modena, GUISMO Engenharia

Director

Brazil

Jobson Modena, Esq., is an electrical engineer, director of GUISMO Engenharia, and a specialist in lightning protection. He serves as coordinator of the technical committee responsible for revising NBR 5419:2026 and represents Brazil on IEC TC-81. He is an instructor at ABNT, a graduate-level professor at various institutions, and a speaker at national and international conferences. As the author and co-author of technical books in the electrical field, he also serves as a consultant for Potência Magazine and major events in the electrical sector. He provides technical mentoring to companies focused on standardization and lightning protection.

Speaker
Dr. Hélio Eiji Sueta, IEE USP

Deputy Head of Division

Brazil

Hélio Eiji Sueta-is an electrical engineer with a master's degree in electrical engineering and a Ph.D. in electrical engineering from the Polytechnic School of the University of São Paulo (EPUSP). He is currently a researcher in the Scientific Division of Energy Planning, Analysis, and Development at the Institute of Energy and Environment (IEE-USP) of the University of São Paulo. He served as Head of the High-Current Technical Section at IEE-USP from 1991 to 2001 and as Director of the Power Division from 2001 to 2011. He wrote his doctoral dissertation on the protection of structures against lightning strikes. He currently serves on standardization committees as secretary of CE 64.10 (Protection of Structures against Atmospheric Discharges) and is a Brazilian member of IEC TC 81-Protection against Atmospheric Discharges. He has participated in more than 100 national and international symposia, primarily in the field of lightning, and has published more than 300 technical articles in journals, symposium proceedings, and interviews. 

Speaker
Júlio Cesar Prato, Embrastec

Senior IT Analyst

Brazil

.

Speaker
Laís Pimentel, Embrastec

Electrical Engineer

Brazil

Freelance electrical engineer and member of the DPS low-voltage electricity committee. A specialist in applied technical documentation, she works on project development focused on results, safety, and financial viability. Continuously improving her skills through an MBA program, she is committed to clear and efficient engineering: translating technical knowledge into understandable and cost-effective solutions, while promoting operational excellence and continuous improvement.  

Speaker
Cleiton Busse, Embrastec

Engineering Manager

Brazil

Cleiton Busse holds a Bachelor's degree in Electrical Engineering from Universidade Paulista and specializes in the development of surge protection devices (SPD). With more than 15 years of professional experience at EMBRASTEC, he has a broad perspective and practical experience in production, quality, laboratory operations, and engineering. He currently serves as the Chief Technical Engineer and coordinates the High-Voltage Laboratory, Technical Support and Assistance, and After-Sales departments.

Speaker
Prof. Dr. Roberto Zilles, Instituto de Energia e Ambiente da USP

Professor

Brazil

He holds a bachelor's degree in Physics from the Federal University of Rio Grande do Norte (1985), a master's degree in Mechanical Engineering from the Federal University of Rio Grande do Sul (1988), and a Ph.D. in Telecommunications Engineering, with a specialization in Photovoltaic Systems, from the Polytechnic University of Madrid (1993), and a postdoctoral degree in Renewable Energy from the University of São Paulo (2006). He is currently a full professor at the Institute of Energy and Environment at the University of São Paulo and a member of the Editorial Board of the journal *Progress in Photovoltaics: Research and Applications*. He works in the field of electrical engineering, with an emphasis on photovoltaic systems, focusing on the following topics: rural electrification, residential photovoltaic systems, photovoltaic pumping systems, distributed generation, and grid-connected photovoltaic systems.

Speaker
Sergio Roberto Santos, Lambda Consultoria LTDA

Electrical Engineer

Brazil

He holds a degree in electrical engineering from the Federal University of Rio de Janeiro, a specialization in economics and business (MBA) from the Federal University of São Carlos (UFSCAR), and a master's degree in science from the Institute of Energy and Environment at the University of São Paulo (IEE USP). He is an engineer at Lambda Consultoria, a consultant at Embrastec, and the author of the 'EM Aterramento' column in Eletricidade Moderna magazine.

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