Вся арматура для монтажа провода СИП. Линейная арматура и оборудование для воздушных линий СИП.

#sip #installation #equipment We have already become acquainted with various SIP wires But in addition to the wires themselves, there is a variety of fittings and equipment for attaching them to supports, arranging trunk lines and branches to the consumer. In the first part of the film, we will talk about the device of main overhead power lines in a summer cottage village. All equipment is attached to the supports using mounting tape. The line usually starts from a substation The substation is powered by an overhead power line with a voltage of 10 kilovolts As you can see, SIP-3 wires were used for connection. These are high-voltage wires designed for voltages up to 35 kV They have aluminum conductors, a steel core and polyethylene insulation. Structurally, the SIP-3 wire is arranged in the same way as the SIP-2 load-bearing core. Voltage is supplied to the step-down transformer through the disconnector On the left we see low voltage terminals of 0.4 kV. or 380 volts Here is a simplified diagram of this substation. The primary winding of the transformer receives 10 kV, The secondary winding is connected in a star pattern, the neutral is grounded. The electricity is supplied to the main lines through the switchgear. This substation has three outputs to the main lines, made with SIP-2 wire. On this support, you can see that one line goes to the left, and two to the right. Anchor wedge clamps are used here. These clamps are designed to fasten the neutral insulated load-bearing core on the end and corner supports. The clamp body is made of aluminum alloy Self-adjusting wedges made of UV-resistant polymer. The wedges are made with a special relief that securely fixes the conductor without damaging the insulation. No tools are required for installation From the main lines, the lines are also branched off with SIP-2 wire to each street. The connections are made with piercing branch clamps. A supporting clamp on a bracket is used on intermediate supports. The clamp supports the SIP-2 by the neutral load-bearing core. The SIP-2 is designed as follows: Three cores are made of aluminum, relatively easy to bend, they can be easily cut with hand side cutters, And the neutral load-bearing core has both aluminum conductors and steel wire, very rigid An aluminum conductor can be easily cut with side cutters, but a steel core cannot be cut with side cutters, a special tool is needed, for example, a bolt cutter. This is a supporting clamp with a bracket for the SIP-2 It is attached to the support with mounting tape, for this there are special recesses. The limiter does not allow the wires to be thrown upward in strong winds. Universal range of cross-sections. The neutral is fixed with an adjustable clamp. The movable joint allows the clamp to move in the longitudinal and transverse directions. The elements are made of a dielectric material and do not damage the insulation. Special clamps are used to tighten the wire. To connect the branches, the conductors must be slightly spread apart. Piercing branch clamps are used to branch the phase and neutral conductors of the SIP. Anchor wedge clamps are used to secure the SIP-2 on the corner supports. And this is how the main line ends. The SIP-2 is attached to the anchor support with a wedge clamp, the conductors are bent back and secured with ties. Special rubber caps are put on the ends of the conductors. These caps come in different sizes. Adapters for applying protective grounding are also installed here. They are used when performing repair work. They are connected to the SIP-2 wire using piercing branch clamps. Well, the neutral conductor is connected to the grounding conductor and goes into the ground...