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Is there any speed drive (motor range 200-400 kW) with marine certificate (DNV requested)? We are in progress of prescribing of equipement for 6 ships...

Goals and Symptoms

Is there any speed drive (motor range 200-400 kW) with marine certificate (DNV requested)? We are in progress of prescribing of equipement for 6 ships in period of 2 years(each should have 16 pcs. of motors 200-400kW)?

Facts and Changes

ATV68 marine certificate

Causes and Fixes

There is no certificat for marine ( ie DNV ) but the ATV68 respond to:
EN58178 in relation with IEC 68-2-6:

Sinus vibrations in the 3 axis : 10Hz to 57Hz displacement 0.75mm,
57Hz to 100Hz acceleration 1gn.

For the shocks IEC 68-2-27:
Acceleration 15g 11mS


There is too much expensive tests to be marine approved futhermore ATV68 is sensisitive regarding humidity it is only IP00.

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