Moss is evident in much of the natural world as well as many darker or damp locations within the built environment,...
Valid to UK only - excludes oversized items
Moss is evident in much of the natural world as well as many darker or damp locations within the built environment,...
Starting scale modelling can be a wonderful and educational hobby for children. The appropriate age to start largely...
When working out the gradient for an incline on a model railway, your research may well uncover advice and tolerances...
Creating realistic weathered brickwork on your scale models can add a lot of character and authenticity. Here's a...
Metcalfe is a family run business founded during the early 1990s. They produce 00/H0 and N gauge card kits for model...
When telegraph lines cross railways, a certain clearance is required to ensure the safety and proper functioning of both the railway and the telegraph lines. This clearance is known as the "line clearance" or "wire clearance".
The specific clearance required can vary depending on the country and the regulations in place. In the United Kingdom, for example, the line clearance for telegraph lines crossing railways is typically 5.5 meters (18 feet) above the top of the rail.
This clearance is necessary to prevent any interference between the telegraph lines and the trains passing underneath. It allows for the safe passage of the trains without any risk of the telegraph lines coming into contact with the trains or any of their equipment.
It is important to note that these clearances are established to ensure the safety and reliability of both the railway and the telegraph lines. Failure to maintain the required clearance can result in accidents, damage to equipment, and disruption of communication.
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