16-11-2021
How is subsea cable repaired?
Submarine information links are situated under the sea, and associate individuals all throughout the planet with information and data, while submarine electrical links move power, for example, those utilized on wind ranches.
Differences in the two types of cables
Data cables are made up of a few fiber optic strands of glass about the width of a human hair. Most of the cable is actually protection for these strands, as well as conductive material to power the cables. The size of the final product varies depending on the amount of protection it needs: larger, more protected cables are usually near the shore in shallow water, and thinner cables are buried deep under the ocean.
Why do underwater cables need repair?
Damage can be caused by failure in a cable, but this is very uncommon. Earthquakes can damage cables, like the one in 2006 off the coast of Taiwan that caused a loss in international phone and internet data service. Sharks sometimes chew on the cables, as seen in the article above, but this is also rare, and they usually don’t do much damage. The most common failure is boats; trawling by fishing boats and ships dropping anchor can snag and easily damage the cables, which aren’t buried very deeply in the sea bed.
How are underwater cables repaired?
The first step in repairing an underwater cable that can be thousands of miles long is figuring out where the damage is located. The general location is found by internet and phone outages, or in the case of electrical cable, the power outage. Data cables are fiber optic, so a light pulse is sent through the cable that would normally go all the way to the other side. Broken fibers bounce the light pulse back, and engineers can measure the time it takes the pulse to return to find the specific location of the break. Undersea power cables get a rough estimate of where the break is, then send a Remotely Operated Vehicle, or ROV, with fault detection instruments to find the damage. Some causes, like an anchor strike, may be easy to see, but others take more time to find. Once the break is located, a cable ship is dispatched to repair. All they have to do is brave the weather, pirates, and sea creatures for a successful fix.
06-12-2021
10 curious facts about maritime transport
1. Maritime transport represents 90% of world trade shipments.
2. The cost of building large container ships can exceed $ 200 million.
3. Only between 2% and 10% of the containers that transit around the world are inspected.
4. Maritime transport is an ecological form of transport, if we compare it with trucks or airplanes.
5. The average cost of shipping a bicycle is $ 10. The cost of sending a can of soda is $ 0.01.
6. Right now, there are about 20 million containers traveling by sea.
7. The engine of a container ship is 1,000 times more powerful than that of a car.
8. About two-thirds of commercial ships do not have advanced communication facilities on the high seas. Only 10% of the boats have Internet on board.
9. The ports of the East Coast of the United States, New York and New Jersey, carry a third part of all the traffic of the North Atlantic.
10. There are approximately 1.5 million sailors, the vast majority of whom come from the Philippine Islands.
17-11-2021
Importance of underwater ship repairs and maintenance
Standard support and fixes to your boat is a fundamental piece of being a vessel proprietor; it assists with guaranteeing wellbeing and security, keeps your boat in top condition and can set aside you time and cash over the long haul
Every so often, a submerged fix is the lone possible alternatives, especially in occurrences of body, propeller and plating upkeep.
Submerged boat fixes can:
· Signify your necessities
· Set aside cash over the long haul
· Lessen time spent in dry dock
· Further develop transport proficiency
Here’s why certain underwater repairs and maintenance are so important:
Hull Cleaning
Maybe the main sort of submerged boat fix, body cleaning ought to be finished consistently.
By keeping your boats structure spotless and kept up with, you can stay away from terrible shocks like barnacles, marine scavangers that whenever left untreated can connect themselves permanently to the underside of your boat.
Propeller Polishing
Regular propeller polishing can assist with diminishing the surface's harshness and thusly, can save huge costs eventually. Smooth propeller surfaces become ungracious to marine living beings, which means the underside of your boat will not turn into a homing ground for marine life that could cause harm.
Hull Plate Repairs
Damaged hull plating can be the result of many factors; natural corrosion, stress from long voyages or unavoidable wear and tear after years of use. Allowing defective hull plates to go unnoticed can cost you, both financially and in time, so immediate repair and maintenance once a fault has been identified is important. Repair methods are varied; from a hydraulic ram to specialist tempering.
Underwater Ship Painting
There will without a doubt be a period where submerged composition or cement work to the lower part of your boat is required, especially if any defensive covering starts to break down and erode. Customary upkeep on your boat's paintwork can assist with hindering such erosion as well as putting aside your money; if rust or oxidization is left for a really long time, it turns into a significantly more costly issue to have.