| Dielectric Safety & Grounding |
Total electrical insulation; eliminates touch-voltage shock risks without grounding dependence |
Conductive; requires continuous copper earth bonding and periodic earth resistance testing |
Conductive; high shock risk if coating degrades and live internal conductors make contact |
| Atmospheric Salt Fog Corrosion |
100% immune (ASTM B117 > 1,000 hrs zero degradation); ideal for Veracruz & Mazatlán |
Good, but subject to pitting corrosion and crevice attack in high chloride coastal environments |
Poor; micro-cracks lead to immediate rust creeping beneath the epoxy surface within 24 months |
| Thermal Stability & Heat Dissipation |
Low thermal conductivity keeps internal temperature stable under blistering desert sun |
High solar thermal absorption; internal enclosure temperatures can exceed 70°C in Sonora |
Rapid solar heating causing thermal accelerated aging of internal cable insulation |
| Mechanical Impact Resilience |
IK10 rating (20 Joules); high elasticity recovers shape without permanent denting |
High mechanical strength, but permanent deformation upon impact can breach gasket seals |
Moderate impact; denting immediately damages protective surface finish causing rust |
| Expected Service Lifetime |
30+ Years Outdoor / 40+ Years Indoor |
15–20 Years (depending on welding passivation quality) |
5–8 Years before structural failure in outdoor tropical climates |
| Total Cost of Ownership (TCO) |
Lowest; zero maintenance, zero repainting, lightweight cuts installation labor by 35% |
High initial material acquisition cost; moderate structural maintenance |
High lifecycle cost due to frequent replacements and repainting shutdowns |