OPERATIONAL RESILIENCE AND OCCUPATIONAL SAFETY: A SYSTEMIC APPROACH TO CRITICAL ENVIRONMENTS

Abstract

This study aims to systematize the normative convergence between NR-10, NR-33, and NR-35, structuring an integrated risk governance framework to ensure operational continuity and worker protection in mission-critical environments. The theoretical foundation is based on organizational resilience and the mitigation of latent failures in high-availability infrastructures. The methodological trajectory adopted a qualitative and exploratory approach, utilizing an integrative bibliographic review articulated with the analysis of real operational scenarios in 25 MVA substations, tank cleaning, and facade maintenance. For technical evaluation, a Combined Risk Matrix (R = F X G) was applied, allowing for the quantification of severity in high-complexity interventions. Qualitative results demonstrate that transitioning from fragmented models to integrated management under the scope of Occupational Risk Management (GRO) consolidates legal safety and systemic reliability. Quantitatively, the analysis revealed that tank cleaning activities present constant hazardousness, with 80% of risks situated at the "High" level (RI 6). In contrast, electrical and facade maintenance scenarios, while more variable, concentrated maximum criticality peaks (RI 9) in 15% of the observations, where the failure of a single barrier can result in immediate fatalities. It is concluded that the adoption of redundant barriers and "zero tolerance" for deviations are decisive factors for life preservation and operational resilience.