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by al2207
Thu Feb 18, 2016 4:25 pm
Forum: Crew Mess
Topic: Power outages
Replies: 1
Views: 364

Re: Power outages

I think also US are very vulnerable from solar storm magnetic induce ground current , the age of obsolescence for a very large part of the electrical grid should be an important concern , unfortunately since only the last line of accounting of gain is important, any upgrade of the grid will be postp...
by al2207
Thu Feb 18, 2016 7:40 am
Forum: Crew Mess
Topic: Top Heavy Tupperware Dishes
Replies: 37
Views: 2301

Re: Top Heavy Tupperware Dishes

what will be the time before capsizing after propulsion azipod failed and ship is pushed sideway into the waves, yes disaster waiting to happen , it is so impossible to understand ship with 6 generators goes dead on sea , up until now it was always in calm water , next time during storm ? i think go...
by al2207
Sun Jul 21, 2013 9:37 am
Forum: Crew Mess
Topic: Investigation into the Fire on CARNIVAL SPLENDOR
Replies: 3
Views: 1551

Re: Investigation into the Fire on CARNIVAL SPLENDOR

cannot have access ?
by al2207
Fri Mar 15, 2013 12:32 pm
Forum: Crew Mess
Topic: Carnival Dream, perhaps, well not really a pleasant one
Replies: 4
Views: 1693

Re: Carnival Dream, perhaps, well not really a pleasant one

I had seen something like that on our frigate: the breaker for the shore power were falling apart due to the number of operations ( mechanical life was very low like 2500 or 5000 ops ) . It was not possible to change for another manufacturer because there was not enough space available . They are ta...
by al2207
Fri Mar 15, 2013 11:02 am
Forum: Crew Mess
Topic: Carnival Dream, perhaps, well not really a pleasant one
Replies: 4
Views: 1693

Re: Carnival Dream, perhaps, well not really a pleasant one

another one first hire competent marine electrical engineer second do some maintenance third have spokesman tell something plausible , the kind of problem they are mentioning are not compatible with facts 4 hire some real technician in automation aboard ship 5 change the name of company to Liar, lia...
by al2207
Sun Mar 10, 2013 8:27 am
Forum: Crew Mess
Topic: Emma's engine under water
Replies: 30
Views: 11279

Re: Emma's engine under water

as i said all breakers must be replaced it is the same thing as carbon deposit , all conducting parts are not the problem but all insulator must be replace . Salt deposit on insulator is very difficult to clean completely and breakers are more difficult to clean ; they will try to clean but must hav...
by al2207
Sat Mar 09, 2013 1:33 pm
Forum: Crew Mess
Topic: Emma's engine under water
Replies: 30
Views: 11279

Re: Emma's engine under water

they will have to replace all breakers, electronic , electrical component that were immerse in salt water including all switchboards, transformers ,motors , generators ;
nice order for the equipment manufacturer
by al2207
Sat Mar 02, 2013 10:17 am
Forum: Crew Mess
Topic: Another Carnival Triumph
Replies: 35
Views: 11646

Re: Another Carnival Triumph

you know there are 3 assignment that do not require certification aboard cruise ship
electrical personnel
doctor
nurse
i am quite sure the electrician that make the switchboard explode will not approach anything electrical for some time
by al2207
Fri Mar 01, 2013 8:50 am
Forum: Crew Mess
Topic: Another Carnival Triumph
Replies: 35
Views: 11646

Re: Another Carnival Triumph

Since we do not have any report about cruise ship fire in switchboard ;I had found a fire in 2002 with Coast guard report , conclusions are interesting.

http://www.tc.gc.ca/eng/marinesafety/ts ... u-1260.htm
by al2207
Fri Mar 01, 2013 7:29 am
Forum: Crew Mess
Topic: Another Carnival Triumph
Replies: 35
Views: 11646

Re: Another Carnival Triumph

The procedure you are mentioning is correct in case of blackout ship ; but what i was thinking is: when you have 3 or 4 generator already running is there a way to synchronize without computer . Each time there is fire in engine room they were trying to add some generator on Splendor they were tryin...
by al2207
Tue Feb 26, 2013 10:41 am
Forum: Crew Mess
Topic: Another Carnival Triumph
Replies: 35
Views: 11646

Re: Another Carnival Triumph

Thanks for info ; do you remember if there were a manual way to synchronize generator to the bus without the computer ?
within Sam specification breaker had 50 KA int capacity ip it sound quite low for the generator capacity up to 6 depending of configuration )
by al2207
Tue Feb 26, 2013 7:51 am
Forum: Crew Mess
Topic: Another Carnival Triumph
Replies: 35
Views: 11646

Re: Another Carnival Triumph

they should be able to have split bus but it is only required by LLyods but if i remember some front view you have the 10 KV in line with the 440V via transformer . the best layout should be to have 2 separate compartment completely isolated with tie breaker ; there is only a small problem to redesi...
by al2207
Mon Feb 25, 2013 2:58 pm
Forum: Crew Mess
Topic: Another Carnival Triumph
Replies: 35
Views: 11646

Re: Another Carnival Triumph

Unlike the carnival Splendor they were not able to re-start the system for toilet : the engine room was entirely destroy or the electrical chef was not able to figure out something . On the Splendor the solution may had been to use the normal feeder cable to the emergency switchboard disconnected at...
by al2207
Tue Feb 12, 2013 6:08 am
Forum: Crew Mess
Topic: Another Carnival Triumph
Replies: 35
Views: 11646

Re: Another Carnival Triumph

if there are 2 separate compartment it is not possible to have both fails at same time . How many Switchboard ?? , was there a electrical eng. ? too many engine room fire without any investigation ?
by al2207
Mon Jan 16, 2012 11:04 am
Forum: Crew Mess
Topic: Italy cruise ship Costa Concordia aground near Giglio
Replies: 187
Views: 53729

Re: Italy cruise ship Costa Concordia aground near Giglio

normally after loss of power emergency generator should kick in and supply emergency power within 30 seconds

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