Cable lines - not serious / 01.10.2025

Cable insulation extrusion towers

When applying insulation, it is necessary to keep the high voltage cable in an upright position for a certain time to avoid ovalization and other negative effects. If we know the recommended time, then we understand that the required height of the extrusion tower will be proportional to the desired cable production speed. Hence the

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Cable lines - joints and terminations / 25.09.2025

Cable joints

Cable couplings are one of the places where cable line damage often occurs. There are many different types of couplings, but most of them can be classified into one of two categories:✅ Cable terminations;✅ Cable joints. Cable terminations are placed above the ground and can be subjected to periodic inspection, which is a good thing.

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Cable lines - screen bonding / 22.09.2025

Earth continuity conductor

Today we will not talk about alcohol (“bar”), but about a conductive element called:✅ equipotential bar (bar, bus);✅ earth continuity conductor (ECC). Questions arise:1️⃣ why do we need such a bar;2️⃣ how to provide equal distances from the bar to all phases A,B,C;3️⃣ how to calculate the optimal bar material and cross section (Fb). Unfortunately,

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Cable lines - not serious / 17.09.2025

Cable without water tree

For cables there are many reasons for water penetration and growing of water trees inside the insulation. For example, it could be: 1️⃣ Production:👉 the raw materials used were not dried;👉 on the extrusion line (application of insulation or polymer sheath), when starting a new order or completing it, the water level in the cooling

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Cable lines - screen bonding / 11.09.2025

Cost of losses in cable screens

When designing cable lines, we use software to check ampacity, taking into account the key influencing factors:✅ cross-section of cable elements;✅ the mutual arrangement of phases and circuits;✅ screens’ bonding type;✅ laying conditions;✅ environmental parameters. It turns out that almost every software known in the cable industry calculates ampacity perfectly, and also helps with calculating

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Cable lines - not serious / 11.09.2025

Cable insulation extrusion towers

We all see here on the Internet (LinkedIn etc) the unspoken competition between different manufacturers of subsea cables. These companies build concrete towers in which the process of applying insulation to the cable core takes place. They always mention the height of the tower, and every new tower is more and more high. It looks

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