Tankerman · Safety — Bonding
The main reason an insulating flange is fitted in the ship/shore cargo connection on many oil transfers is to:
- AIncrease the flow rate
- BBreak the metallic path so stray electrical currents cannot cause a spark at the connection✓ Correct
- CFilter the cargo
- DMeasure the cargo pressure
Explanation
An insulating (isolating) flange interrupts the metal-to-metal path between ship and shore, preventing galvanic/stray currents from arcing across the connection when hoses or arms are connected or broken.
Authority: Tank Vessel Safety (USCG topic)
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