I was back down at Horning today inspecting this Motor Cruiser. Aquafibre moulded the hull and the superstructure of the Ocean 30 for other yards to fit out. This round bilge displacement cruiser was in production from 1966 to 1979... This example is the Mk II, adding a small single cabin to the right of the cockpit, producing a three-five berth. Over A 1000 ocean 30’s were built. Most can be found on rivers but the boats are quite cable of seagoing, at least in the twin engine versions.
Surveyors comments on electrical installations generally
It's advisable to run cables as high as possible in the boat to reduce the chance of heat or impact damage - at least 75mm (3ins) and ideally 125mm (5ins) away from any potential sources. Cable conduits can be the 'clip together' uPVC type, galvanised steel or wood. But whatever the type, they must be firmly fixed at around 900mm (3ft) intervals. To minimise the chance of sparks coming off a damaged cable and igniting nearby fuels, cables must be kept at least 30mm (2ins) away from fuel and gas pipes - unless the pipe or the cable is in a suitable conduit or duct.
To minimise the risk of damage to cables, and to allow a visual inspection of the installation, main circuits must be installed above bilge water level. Bilge water level can usually be determined by the presence of a 'tidemark', the position of the bilge pump or its inlet, or the level at which the float switch is set. All main circuits, other than starter circuits, must be protected by circuit breakers or fuses of the appropriate rating and of a suitable design. This means that the fuse or circuit breaker must have a rating which is lower than the current that would cause damage to the circuit. The safe operation of these devices must not be compromised by the use of thicker fuse wire or by using tape to keep the contacts closed. If your boat has a 240V supply it's strongly recommended that you fit a residual current device (RCD) to automatically disconnect the supply. This will prevent an earth leakage current flowing through a faulty appliance, and protects someone inadvertently touching a live circuit and getting an electric shock.
Thinking of Buying a Boat and Need Help? I will assist you to make an informed decision. Contact me for a detailed and comprehensive report at: steventruss1@aol.com
Surveyors comments on electrical installations generally
It's advisable to run cables as high as possible in the boat to reduce the chance of heat or impact damage - at least 75mm (3ins) and ideally 125mm (5ins) away from any potential sources. Cable conduits can be the 'clip together' uPVC type, galvanised steel or wood. But whatever the type, they must be firmly fixed at around 900mm (3ft) intervals. To minimise the chance of sparks coming off a damaged cable and igniting nearby fuels, cables must be kept at least 30mm (2ins) away from fuel and gas pipes - unless the pipe or the cable is in a suitable conduit or duct.
To minimise the risk of damage to cables, and to allow a visual inspection of the installation, main circuits must be installed above bilge water level. Bilge water level can usually be determined by the presence of a 'tidemark', the position of the bilge pump or its inlet, or the level at which the float switch is set. All main circuits, other than starter circuits, must be protected by circuit breakers or fuses of the appropriate rating and of a suitable design. This means that the fuse or circuit breaker must have a rating which is lower than the current that would cause damage to the circuit. The safe operation of these devices must not be compromised by the use of thicker fuse wire or by using tape to keep the contacts closed. If your boat has a 240V supply it's strongly recommended that you fit a residual current device (RCD) to automatically disconnect the supply. This will prevent an earth leakage current flowing through a faulty appliance, and protects someone inadvertently touching a live circuit and getting an electric shock.
Thinking of Buying a Boat and Need Help? I will assist you to make an informed decision. Contact me for a detailed and comprehensive report at: steventruss1@aol.com
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