Has any harbour ever offered shore-power to swinging moorings?

[IJL]

not sure how you would waterproof a swivel but i would have though a conector could be made where where one coil induces power into another coil, both of them insulated and isolated.

I suspect cost/demand is the real issue rather than technology,

 

[Lakesailor]

I've seen some offshore moorings at Walney with power laid-on.

[/cente]​

 

[JumbleDuck]

I still have a gleam of hope that a way could be found, but such high voltage in a frequently-drenching environment sounds more than challenging.

All the problems listed could be solved, but it would probably be more difficult to solve them in a foolproof way; ie one which could withstand the attentions of an idiot.

 

[JumbleDuck]

Supply at 110, to make handling the socket much safer.

In part because it's actually two phase, so you get two 55V supplies in antiphase. 55V will give you a bit of a jolt, but it's very unlikely to kill you.

 

[jerrytug]

In part because it's actually two phase, so you get two 55V supplies in antiphase. 55V will give you a bit of a jolt, but it's very unlikely to kill you.

Oh is it, I didn't know that. On a site, for example, you plug a transformer into the ordinary single phase mains supply, and the transformer reduces the voltage to 110. The secondary windings are half in number but twice as thick as the primary windings as I remember. I didn't know anything happened to the phase. You can also connect a building site transformer the wrong way round to step the voltage back up to 230. What happens to the phase in that case?
Time I revised this stuff anyway! cheers Jerry

 

[JumbleDuck]

Oh is it, I didn't know that. On a site, for example, you plug a transformer into the ordinary single phase mains supply, and the transformer reduces the voltage to 110. The secondary windings are half in number but twice as thick as the primary windings as I remember. I didn't know anything happened to the phase.

It's nothing fancy. The primary coil has live at one end and neutral at the other; the secondary is centre tapped to earth so that one end is +55V when the other is -55V. All a transformer does is induce a potential difference between the ends of the secondary; you can fix the absolute values as you like.

 

[jerrytug]

Aha, clever stuff thanks for the info.

 

[Deleted member 36384]

It's nothing fancy. …….

Thats three times you said that. If this was the mafia you would now be called "Jumble Duck 3 Times". I watched Goodfellas last night.

Back on subject - apparently the admiralty mooring buoy, or the one that used to be there, in Rothesay bay has/had power and telephone cables run out to it.

 

[jerrytug]

Thats three times you said that. If this was the mafia you would now be called "Jumble Duck 3 Times". I watched Goodfellas last night.

Back on subject - apparently the admiralty mooring buoy, or the one that used to be there, in Rothesay bay has/had power and telephone cables run out to it.

Yes I can't think of an example, but I'm sure there are buoys with power and comms. After all, it's nothing fancy.

 

[JumbleDuck]

Thats three times you said that. If this was the mafia you would now be called "Jumble Duck 3 Times". I watched Goodfellas last night.

Sorry. Forum behaving very funnily here. Keeps hanging.

Back on subject - apparently the admiralty mooring buoy, or the one that used to be there, in Rothesay bay has/had power and telephone cables run out to it.

There are several purple wriggly lines from Ardbeg Point to the middle of Rothesay Bay on the chart at visitmyharbour, but they don't seem to attach to anything.

 

[JumbleDuck]

Thats three times you said that. If this was the mafia you would now be called "Jumble Duck 3 Times". I watched Goodfellas last night.

Sorry. Forum behaving very funnily here. Keeps hanging.

Back on subject - apparently the admiralty mooring buoy, or the one that used to be there, in Rothesay bay has/had power and telephone cables run out to it.

There are several purple wriggly lines from Ardbeg Point to the middle of Rothesay Bay on the chart at visitmyharbour, but they don't seem to attach to anything.

 

[Poignard]

Back on subject - apparently the admiralty mooring buoy, or the one that used to be there, in Rothesay bay has/had power and telephone cables run out to it.

I have a faint recollection of standing a watch on the forecastle of HMS Gambia in the 1950s whilst she swung off a buoy somewhere in the Forth during mid-winter. My duties included watching that the telephone cables didn't get foul of anything. I do remember that it was bloody cold!

 

[Poignard]

Back on subject - apparently the admiralty mooring buoy, or the one that used to be there, in Rothesay bay has/had power and telephone cables run out to it.

I have a faint recollection of standing a watch on the forecastle of HMS Gambia in the 1950s whilst she swung off a buoy somewhere in the Forth during mid-winter. My duties included watching that the telephone cables didn't get foul of anything. I do remember that it was bloody cold!

 

[AntarcticPilot]

The problem of getting a swivelling connection might be met by making it a transformer, with the secondary (boat connection) on a magnetically connected but swiveling part of the transformer core? Same principle as toothbrush chargers, but engineered to be a) stronger and b) more efficient.

 

[jerrytug]

Yes, or logging the orbits of the buoy, and unplugging and untwisting the wire!
What about slip rings in a watertight gland or has someone said that.
edit, anyway back to the OP, yes on the trots, no on a swinger, I would say.

 

[Daydream believer]

I am sure we could arrange something at Bradwell
infact for £6K per annum we will throw in a pontoon
See !!!!problem solved

 

[Deleted member 36384]

There are several purple wriggly lines from Ardbeg Point to the middle of Rothesay Bay on the chart at visitmyharbour, but they don't seem to attach to anything.

Certainly in the mid to late 1980s there was a large, round, yellow buoy with a flashing yellow light on top, the sort you could stand on - buoy, not light, as opposed to the yellow barrel types. On the pole with the light there was a large box which looked as if it could be a junction box. I am aware of one grey ship and one submarine faffing about with the buoy and men in a rib, on the buoy. The buoy is now gone, I am sure and was replaced with a black barrel type, which might also be gone now. The pace of life on the Clyde is very sedentary now.

 

[bikerbill]

Certainly in the mid to late 1980s there was a large, round, yellow buoy with a flashing yellow light on top, the sort you could stand on - buoy, not light, as opposed to the yellow barrel types. On the pole with the light there was a large box which looked as if it could be a junction box. I am aware of one grey ship and one submarine faffing about with the buoy and men in a rib, on the buoy. The buoy is now gone, I am sure and was replaced with a black barrel type, which might also be gone now. The pace of life on the Clyde is very sedentary now.

I'm wondering if that's the same buoy that we used to tie the RHIB onto, when diving for old military shells.

 

[JumbleDuck]

Certainly in the mid to late 1980s there was a large, round, yellow buoy with a flashing yellow light on top, the sort you could stand on - buoy, not light, as opposed to the yellow barrel types. On the pole with the light there was a large box which looked as if it could be a junction box. I am aware of one grey ship and one submarine faffing about with the buoy and men in a rib, on the buoy. The buoy is now gone, I am sure and was replaced with a black barrel type, which might also be gone now. The pace of life on the Clyde is very sedentary now.

In Ye Olde Days, when I learned to sail at Port Bannatyne, there were three of the big black buoys in Rothesay Bay and a couple in Kames Bay as well. No lights on any of them, which was character building after dark. I think the three black ones in Rothesay turned into one big yellow one, and the Kames Bay ones went altogether.

 

[lpdsn]

Certainly in the mid to late 1980s there was a large, round, yellow buoy with a flashing yellow light on top, the sort you could stand on - buoy, not light, as opposed to the yellow barrel types. On the pole with the light there was a large box which looked as if it could be a junction box.

Perhaps it was an emergency telephone in case they broke down.