[BITList] EMMA MAERSK - E/R Flooding

[x50type]

Frank

I know nothing about shipboard electrical cables; what specifically in the cable materials will cause such serious wicking?
do you think it is possible for this particular flooding [allegedly due to cables thro the bulkhead] to have been caused by something that escaped the ship builder, the owner’s reps on the job and the classification surveyors?

and talking of class, there must be reams of regs as far as electical cables are concerned

enquiring minds want to know.

ct

From: FA 
Sent: Sunday, March 31, 2013 4:18 AM
To: BitList 
Subject: Re: [BITList] EMMA MAERSK - E/R Flooding

Hugh 
if non hygroscopic non wicking cables are not specified once capillary action sets in its really surprising the amount of fluid that can  be transported along a bundle of cables enough to flood a compartment in a relatively short  time its almost like having a fire hose running
frank
  
On 3/31/2013 3:28 PM, HUGH wrote:

  Mike,

  While I often specified the runs for major cables in ERs as a service to the electrical dept, and to make it easier to determine pipe and vent runs, I treated the cables as objects belonging to somone else, so filled/unfilled was never an issue for me - your mention of it is the first I've ever seen. Whether it mattered to the electricians, I cannot recall. On the Newton, de-gaussing influenced cable runs, and other requirements to do with her main role as a vehicle for underwater noise, etc, detection made it necessary to run the phases in certain configurations. Changes of direction were tricky, so we used a 1:5 model with coloured wire roughly to scale.

  Going back to the point, I cannot see any self respecting water queueing up to get along a cable via the few small points of access when there are better, and more direct routes to freedom. The more I read about the Maersk ship in question, the more I'm surprised she ever floated.

  Hugh. 

   

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