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Brass lamps are widely used on most vessels for bunk lights, bulk head lights, desk lamps inside the vessel and on the deck. There are many types and variations but they all share the very similar characteristics, very robust and water proof to withstand the heavy pounding of the seas.
Dont forget one metric cube of water which is one thousand liters is equal to one metric tonne of pressure, that’s how ship’s hull plating can become severely damaged in heavy seas if the officer of the watch doesn't respond to sea conditions at the time when underway.
Freak waves are more common than what most people think in certain sea areas of the world i.e. North Sea UK and off the coast of East London South Africa.
I remember when serving as Second Engineer officer on a survey vessel, the Svitzer Meridian G.R.T. 2255.0 Tons in May 2002, we went through an area of abnormal waves higher than the ships mast.
Unforgettable I can tell you it was scary and there was a lot of damage to the steel railings and super structure of the ship, the Chief Engineer instructed all engine room staff to evacuate the engine room and run on UMS, i.e. unmanned engine room.
That was how bad it can get that we couldn't even stand up in the control room without holding onto the switch board handrails let alone do anything down there in the engine room, was just pray to God !
Brass lamps have to work at moments like this of which the switch board being an important part of what makes our brass lamps work and of course the electrical control and distribution hub, all lights are supplied from the 220 volt section of the switchboard single phase, but the real heart of the ship is the generator, the blood of the vessel critical to the vessel's safe operation.
Brass lamps are excellent for any nautical theme decor, such as wall lights or bar settings to give that nostalgic touch to a mariners home office or bar.
A diesel generator is the combination of a diesel engine with an electric generator frequently an alternator to generate electrical energy. Diesel generating sets are in use in places without connection to the power grid , as emergency power-supply if the grid fails, as well as for more complex applications such as peak-lopping, grid support and export to the power grid.
Sizing of diesel generators is critical to avoid low-load or a shortage of power and is complicated by modern electronics, specifically non-linear loads.
The packaged combination of a diesel engine, a generator and respective ancillary devices (such as base, canopy, sound attenuation, control systems, circuit breakers, jacket water heaters and starting system) is referred to as a "generating set" or a "genset" for short.
Set sizes range from 8 to 30 kW (also 8 to 30 kVA single phase) for homes, small shops & business office* with the larger industrial generators from 8 kW (11 kVA) up to 2,000 kW (2,500 kVA three phase) applied for big office complexes, manufacturing plant*. A 2,000 kW set can be housed in a 40 ft (12 m) ISO container with fuel tank, controls, power distribution equipment and all other equipment needed to operate as a complete power station or as a standby backup to control grid power.
These units, referred to as power modules are gensets on large triple axle trailers weighing 85,000 pounds (38,555 kg) or more. A combination of these modules are used for small power plant* and these may use from one to 20 units per power section and these sections can be combined to involve hundreds of power modules. In these bigger sizes the power module (engine and generator) are brought to site on trailers individually and are connected together with big cables and a control cable to form a complete synchronized power plant.
Diesel generators, occasionally as small as 200 kW (250 kVA) are widely used not only for emergency power, but also many have a secondary purpose of feeding power to utility grids either during peak periods, or periods when there is a shortfall of large power generators. Ships frequently also employ diesel generators, sometimes not only to provide auxiliary power for lights, fans, and winches, etc. but also indirectly for main propulsion.
With electric propulsion the generators can be located in a convenient position, to permit more cargo to be carried. Electric drives for ships were developed prior to WW I. Electric drives were specified in many warships built during WW II because manufacturing capacity for large reduction gears was in short supply, compared to capacity for manufacture of electrical equipment. Such a diesel-electric arrangement is also applied in some very large land vehicles such as railroad locomotives.
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