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[Case Study] 132kV Grid Modernization in Coastal Brazil: High-Strength Galvanized Steel Poles Replacing Corroded Wood Poles

2024-05-30

[Case Study] 132kV Grid Modernization in Coastal Brazil: High-Strength Galvanized Steel Poles Replacing Corroded Wood Poles

1.Project Overview

Location: Northeastern Coastal Brazil
Challenge: Located in a C5-M (High Saline) environment, the original wood poles suffered from termite infestation and high-humidity decay, with a lifespan under 15 years. Increasing industrial loads also exceeded the flexural capacity of the aging infrastructure

2. Technical Solution

High-Strength Steel: Utilizing ASTM A572 Grade 65 with $450text{ MPa}$ yield strength. This reduced pole weight by 30% compared to concrete, simplifying installation in marshy coastal terrains.
Corrosion Resistance: Hot-dip galvanizing per ASTM A123 with a coating thickness of $86text{ mu m}$ - $100text{ mu m}$ , supplemented by bituminous coating on the embedment section for underground protection.

3. Performance & Evidence

Stability: Pull-out tests confirmed tip deflection stayed within $pm 1%$ under max design tension, meeting ASCE 48 safety standards.
Longevity: Simulation analysis predicts a maintenance-free service life exceeding 50 years in coastal Brazilian conditions.

4. Conclusion

The project lead noted: "Switching to steel poles resolved the corrosion pain points while the slip-joint design shortened on-site assembly time by 20%."

Futao Metal Structural Unit Co., Ltd. specializes in high-quality Steel Power Poles. Our engineering ensures reliability under extreme conditions through parametric design.

Official Website: http://www.metalpowerpole.com
WhatsApp: 0086-13812516912
Email: sales2@futaogroup.com

Détails des solutions

Accueil solutions

[Case Study] 132kV Grid Modernization in Coastal Brazil: High-Strength Galvanized Steel Poles Replacing Corroded Wood Poles

[Case Study] 132kV Grid Modernization in Coastal Brazil: High-Strength Galvanized Steel Poles Replacing Corroded Wood Poles

1.Project Overview

Location: Northeastern Coastal Brazil
Challenge: Located in a C5-M (High Saline) environment, the original wood poles suffered from termite infestation and high-humidity decay, with a lifespan under 15 years. Increasing industrial loads also exceeded the flexural capacity of the aging infrastructure

2. Technical Solution

High-Strength Steel: Utilizing ASTM A572 Grade 65 with $450text{ MPa}$ yield strength. This reduced pole weight by 30% compared to concrete, simplifying installation in marshy coastal terrains.
Corrosion Resistance: Hot-dip galvanizing per ASTM A123 with a coating thickness of $86text{ mu m}$ - $100text{ mu m}$ , supplemented by bituminous coating on the embedment section for underground protection.

3. Performance & Evidence

Stability: Pull-out tests confirmed tip deflection stayed within $pm 1%$ under max design tension, meeting ASCE 48 safety standards.
Longevity: Simulation analysis predicts a maintenance-free service life exceeding 50 years in coastal Brazilian conditions.

4. Conclusion

The project lead noted: "Switching to steel poles resolved the corrosion pain points while the slip-joint design shortened on-site assembly time by 20%."

Futao Metal Structural Unit Co., Ltd. specializes in high-quality Steel Power Poles. Our engineering ensures reliability under extreme conditions through parametric design.

Official Website: http://www.metalpowerpole.com
WhatsApp: 0086-13812516912
Email: sales2@futaogroup.com

Poteaux électriques métalliques

poudre électrique galvanisée

Poteaux électriques

Polonais de service en acier

Poteaux tubulaires en acier

Réverbère Polonais

Haut mât Polonais

Postes de télécommunications

Pôle de feux de circulation

Poteaux de caméra de surveillance

Pôle de signalisation routière

Accessoires de poteaux

Poteaux électriques métalliques

poudre électrique galvanisée

Poteaux électriques

Polonais de service en acier

Poteaux tubulaires en acier

Réverbère Polonais

Haut mât Polonais

Postes de télécommunications

Pôle de feux de circulation

Poteaux de caméra de surveillance

Pôle de signalisation routière

Accessoires de poteaux

Détails des solutions

[Case Study] 132kV Grid Modernization in Coastal Brazil: High-Strength Galvanized Steel Poles Replacing Corroded Wood Poles

[Case Study] 132kV Grid Modernization in Coastal Brazil: High-Strength Galvanized Steel Poles Replacing Corroded Wood Poles

[Case Study] 132kV Grid Modernization in Coastal Brazil: High-Strength Galvanized Steel Poles Replacing Corroded Wood Poles

[Case Study] 132kV Grid Modernization in Coastal Brazil: High-Strength Galvanized Steel Poles Replacing Corroded Wood Poles