What is the purpose of 2 shore power cables.

[rogerthebodger]

correct, it's not the voltage that kills you it's the current.
I got a suprisingly nasty shock from the starter motor connections on a "24V" engine. The battery charger was running and the actual voltage present was nearly 30V dc.
However I have charged up many a rubber balloon with static electricity to 1000s of volts and didn't feel a thing.

The volts jolt and the mills kills

 

[Seastoke]

The volts jolt and the mills kills

The lack of knowledge , kills

 

[Seastoke]

In the uk , where 415volts is present , the regulation states that a danger warning notice of the relevant voltage must be displayed.

 

[st599]

No they will be two totally separate systems.

Should be, not will be. You're assuming someone who knows what they're doing has done all the electrical work.

 

[Seastoke]

Should be, not will be. You're assuming someone who knows what they're doing has done all the electrical work.

It’s just a phase your going through.

 

[MapisM]

I have the larger plug on a short lead

Keeping it short isn't going to make any difference.
If you try draw more than 16A from a 16A socket, the breaker inside the pedestal will trip.
Assuming the dockside installation is kosher, that is.

 

[Bouba]

Keeping it short isn't going to make any difference.
If you try draw more than 16A from a 16A socket, the breaker inside the pedestal will trip.
Assuming the dockside installation is kosher, that is.

I have no need for more amps.....sometimes only the large socket is available

 

[MapisM]

I have no need for more amps.....sometimes only the large socket is available

Do you mean that your cord/plug is 16A and the adapter is for connecting to 32A socket?
I understood the other way round (hence my comment), but if this is instead the case, beware:
If for any reason you would turn on AC devices onboard demanding say 25 Amp, unless you have a 16A breaker also onboard, downstream of the power cord, you could fry the whole 16A connection - plug and/or cable.

 

[Bouba]

Do you mean that your cord/plug is 16A and the adapter is for connecting to 32A socket?
I understood the other way round (hence my comment), but if this is instead the case, beware:
If for any reason you would turn on AC devices onboard demanding say 25 Amp, unless you have a 16A breaker also onboard, downstream of the power cord, you could fry the whole 16A connection - plug and/or cable.

I actually don’t know if the big plug sockets are of a higher amperage....in fact, before this thread I didn’t even think about it

 

[PaulRainbow]

I actually don’t know if the big plug sockets are of a higher amperage....in fact, before this thread I didn’t even think about it

Depends , but typically the bigger connectors are usually 32a.

 

[Elessar]

In the uk , where 415volts is present , the regulation states that a danger warning notice of the relevant voltage must be displayed.

And there are labels to say “may contain nuts” on peanuts and “contents may be hot” on coffee. All three are pointless.

 

[DavidJ]

The second shore power line is probably for the air con supply.

That would be my guess with air con fitted later in the life of a boat. A potential problem as usually only one socket per boat in the Med (thinking mid size boat 16A)
You could make up a 2 to 1 adapter but depends on supply amps and your draw. Might have to stagger A/C and use of kettle/ hairdryer etc

 

[st599]

And there are labels to say “may contain nuts” on peanuts

Quite useful if you have a nut allergy. Peanuts aren't nuts.

 

[Elessar]

Quite useful if you have a nut allergy. Peanuts aren't nuts.

So go into a pub and say “got any nuts” and they say “we’ve got peanuts” and you say “they’re not nuts they’re legumes”
They may not be nuts, but you would be.

And the point is it’s a useless label even if you have a nut allergy, because if you eat them and you have a nut allergy you are stupid. Label or not.

 

[Seastoke]

And there are labels to say “may contain nuts” on peanuts and “contents may be hot” on coffee. All three are pointless.

So a no entry sign useless , u are talking shite.

 

[Seastoke]

So go into a pub and say “got any nuts” and they say “we’ve got peanuts” and you say “they’re not nuts they’re legumes”
They may not be nuts, but you would be.

And the point is it’s a useless label even if you have a nut allergy, because if you eat them and you have a nut allergy you are stupid. Label or not.

If you touched 415 volt on Friday you would not be resurrected on Sunday.

 

[Elessar]

If you touched 415 volt on Friday you would not be resurrected on Sunday.

Same as 240v and anyway to “touch 415v” you have to be stupid enough to touch the lives of different phases simultaneously one in each hand.
Three phase only gives you 220v on each phase the same as any other mains voltage.
It’s a particular type of stupid to touch both.

 

[Elessar]

So a no entry sign useless , u are talking shite.

Nope. Electric is dangerous. If you don’t know that you’re an idiot. Same with peanuts if you have an allergy to them.
️ is a restriction that only exists because of the sign. Without the sign it’s not no entry. So it serves a purpose.

 

[Elessar]

.

 

[Seastoke]

Same as 240v

The voltage has been 230 v since 2009 it says on the label. Oh ye.