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13.06.2016
More than 14 billion pencils are produced in the world every year, enough to circle the earth 62 times. Take a look at the writing end of a brand-new wooden pencil before sharpening it; it appears that the wood casing is one solid piece. Before discussing how the lead is put into the wood casA­ing, let's clear up what the actual lead is. If you have been told by your ISP that you need to find a private contractor to install or repair your lead-in cable?
Your lead in cable is the cable that connects your home or office to the Telstra infrastructure.
Telstra own all the infrastructure and the other providers such as TPG IINet Optus lease it from Telstra. If you have a fault Telstra is responsible from the NBP (network boundary point) to the pit or pole in the street. This might lead you to believe that pencil-makers bore a hole straight down the middle of the wood and then slide in a rod of lead. Pencil lead is not lead at all; it's a combination of finely ground graphite and clay, mixed with water and pressed together at high temperatures into thin rods. The first pencil was just a chunk of graphite used by carpenters and artisans to make markings without denting their materials. A machine cuts eight grooves, half as deep as the graphite-clay rod is thick, into the slats, and then places rods in each groove.
Inc, more than 14 billion pencils are produced in the world every year, enough to circle the earth 62 times. SECURE A COM can provide you with the solution that you have been searching for, we take care of the lot so you don’t have to worry. This cable will connect to the pit or pole in the street at one end and the other end to the NBP (network boundary point) .
In simple terms Telstra do, but there are many shades of grey around who has to maintain replace and install this cable now.


The NBP will generally be the first socket of the house were the lead in cable terminates, and if you are in a unit or offices it will be the MDF (main distribution frame).
If you have just rebuilt your home and need to have a new lead in cable trenched conduit-ed and cabled-up. Although early pencils were constructed in this manner, it is not how most wooden pencils are mass-produced today. We call it lead is because the Englishmen who first discovered graphite believed they had found lead. This evolved into a graphite chunk wrapped in sheepskin, followed by a string-wrapped graphite pencil, the first pencil with a rod-shaped graphite core.
All creations copyright of the creators.Minecraft is copyright Mojang AB and is not affiliated with this site. This cable can be installed in two ways, depending if the network is aerial or underground. In the past every part of the Telstra network would be maintained free of charge by Telstra. If you see the example image to the left you will see that the lead in cable has a foot in both the occupants premises and the network, so who pays for what? Telstra will fix and make good most of the time if the lead-in cable is faulty, but more and more we are finding that Telstra is delaying replace the lead in cable and we now hear sometimes just refusing to replace it altogether.
If you decide to have it fixed buy us, we can make the appropriate phone line repairs and have you up and working again in no time.
According to the Cumberland Pencil Museum, in the mid-16th century, a violent storm knocked over several trees in Borrowdale, England, uncovering a large deposit of a black substance that was first thought to be lead.
To use one of these pencils, the writer would have to unravel the string as the graphite wore down. When the glue dries, the slats are fed through a cutting machine that cuts the wood into various shapes and divides the slats into eight separate pencils. If you've ever have taken a fill-in-the-bubble test, you're probably aware that pencils vary in darkness.


If your street has pits and pipe infrastructure then it will be underground and if not it will be run up under the electrical line on the telegraph poles. We have a quick response time for damaged lead in cables because we understand just how important it is to have the phone and internet today. Well Secure a Com will come the the rescue and install a lead in cable for you Sydney home or office.
More than 200 years later, an English scientist discovered that the substance was not actually lead, but a type of carbon instead. The next major leap in design was hollowing out a stick of cedar and sticking a piece of graphite down the hole, an idea often credited to the Italians. The seams where the two slats are joined are sanded down and several coats of paint are applied to the pencil, giving it the appearance of a solid structure. The number printed on the side of the pencil indicates hardness and darkness of the graphite core: the higher the number, the harder the graphite core. The lead-in cable is usually a 2 pair cable for domestic premises and 10-100+ pair for businesses.
Because a hard core leaves behind less of the graphite-clay mixture on the paper, it will have a fainter mark than a softer core. We make your jobs a priority so you can keep your clients off the air for the shortest time possible. Instead of hollowing out a piece of wood, they simply cut a groove in the wood, inserted a piece of graphite and broke it off level with the top of the groove.



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