PSL□-12/4 Lightning protection pillar insulatorDetailed product description：

1. Scope of application of the product
PSL □ -12/4 lightning protection post insulator (hereinafter referred to as insulator) is suitable for outdoor high-voltage AC overhead lines with a rated voltage of 12kV and three-phase AC 50Hz. This product can prevent lightning strikes and wire breakage of overhead insulated conductors in 10kV distribution networks.

2 PSL □ -12/4 lightning protection pillar insulator models and their representative significance

P S L □ - 12/4
││││ │
││││ │
│││󧳴? Rated bending load
│││©-- Rated voltage
││©------- Design Number
│©------- Lightning protection type
©----------------------------------------------------------

3. Environmental conditions for use
a) Altitude not exceeding 1000m;
b) Surrounding air temperature: maximum+40℃¡, minimum -40℃¡;
c) Wind pressure not exceeding 700Pa;
d) Places without severe pollution, chemical corrosion, flammability, explosiveness, and frequent severe vibration.
4 Technical Requirements
4.1 The basic parameters of insulators are shown in Table 1

Table 1

Product Model	Rated voltage (kV)	Rated bending load (kN)	Critical flashover voltage for lightning impulse (kV)
PS□□¡12/4	twelve	four	one hundred and forty

4.2 Voltage withstand characteristics of insulators
Insulators should be able to withstand the withstand voltage test specified in Table 2 without flashover or breakdown.
Table 2kV

1-minute power frequency withstand voltage (effective value)		15 lightning impulse withstand voltages (peak) for both positive and negative polarities
Dry test	Wet test	seventy-five
forty-two	thirty

4.3 Insulators should be able to withstand the withstand current specified in Table 3
Table 3

Withstand current (kA)	Tolerance time (s)	Tolerant frequency
one	zero point five	five
sixteen	zero point three	three
twenty	zero point two	two

5. The appearance of the product is shown in Figure 1

Figure 1
6. The installation method is shown in Figure 2

Figure 2

6.1 After unpacking, carefully inspect the insulators for any damage during transportation and storage.
6.2 Remove the discharge ring from the insulation cover, place it on the cap of the insulator, firmly fix the insulator and the arc starting plate on the installation bracket, and ensure that the arc starting plate is parallel to the overhead insulated cable.
6.3 Adjust the discharge gap to 145±¡ 5mm as required.
6.4 Handling of Overhead Insulated Cables
6.4.1 At the fixed overhead insulated cable, use a knife to strip the insulation layer of the cable by 100-120mm, as shown in Figure 3.
Figure 3

6.4.2 Tighten the junction between the insulation layer and the bare wire with waterproof insulation tape, as shown in Figure 4.
Figure 4

6.4.3 Wrap 1-2 layers of aluminum tape with a thickness of 1mm and a width of 10mm around the bare wire (2 layers for wires with a cross-sectional area of less than or equal to 70mm2, and 1 layer for wires with a cross-sectional area of less than or equal to 120mm2), as shown in Figure 5.
Figure 5

6.5 Place the processed cable in the groove of the flange on the insulator, rotate the pressure plate horizontally to the installation position, and fix the cable on the insulator with a nut.
6.6 Use a special insulation cover to secure the cable and insulator, fasten the button, and use waterproof insulation tape to wrap and fix the installation foot of the special insulation cover to the cable.