Electrical Design

- Electrical Design: Electrical system design to suppress corrosion of structures

- Track and field facilities: piping, storage tanks, underground structures and fland facilities

- Offshore facilities: ships, docks, bridges, offshore facilities (wind power generation, drilling vessels, etc.)

- Electrical method: External power method, sacrificial positive method

Electrical method :
To artificially supply sufficient current (modular current) from the opposite direction of the current (corrosion current) from the metal surface to extinguish the corrosion current

External power law :
Install a durable electrode (positive) and use that electrode for the positive pole of the DC power. The passive current is connected to the passive fire protection system by connecting it to a negative pole and receiving an electrical current from the electrode to the passive surface.

Anode system:
the use of metal with a lower potential than iron (hematoid), e.g. aluminum, magnesium, zinc, etc.









Electrical Design Flow

Determination of Design Needs and Methods

Necessity of method design

- Method standard

- Amount of current required

- Electrical continuity

- Electrical insulation

- interference by other facilities

- Estimated life span of the corrosion protection facility

- Planning for maintenance and management

- Power source

- Safety

- Economic

Determination of method

- Sacrifice/double focus placement method

- A scapegoat-distribution method

- External power-polar distribution method

- External power-polar concentration system

- External power-polar concentration distribution method

- Selection distribution method

- Force distribution method

- Other


Floor plan


land facilities – Plumbing, storage tank, etc.


marine facilities – resolution, drilling, etc.