Elektroporcelan
 

 

I

 

Insulators of this group include insulators for overhead traction lines, and are divided into two groups:

  • Long-rod insulators with solid core
  • Pin type insulators

Long-rod insulators with solid core are usually used for 25 kV 50 Hz alternating voltage trolley lines.

These insulators are manufactured with increased leakage distance.

Pin type unsulators are designed with DELTA shape for use in direct current overhead traction lines.

 

Insulators are made of special porcelain mass C120 according to IEC-672-3 (JUS N.A8.302)

 

 

Strut insulator for overhead traction lines 25kV 50Hz

 
Cat. No.

Low Frequency Withstand Voltage

kV

Leakage distance

mm
Dry Wet
Horisontaly Verticaly
5.04.30 150 125 100 725

 

50% Impuls Flashover Voltage

kV

Routine Test Tensile Strength

daN

Minimal Breaking Tensile Strength

daN

Mean Value Breaking Tensile Strenght

daN

Minimum Breaking Moment Cantilever Strenght

daNm

Weight

kg
Negative Positive
300 270 2430 5400 6000 100 10,8

 

 

Feeder support insulator for overhead traction lines

25kV,50Hz  

      

 

Insulators are made of ceramic material KER 110.2 according to DIN 40685. Standard glaze colour is brown. Unless otherwise stated, rough dimensional tolerances according to  JUS B.D7.030 ili IEC383.

±(0,04d+1,5)mm d<300

 

d - being nominal dimension in mm

 

 

Cat. No. Type

H±10

mm

h1

mm

h2

mm

D

mm

d1

mm

d2

mm
5.04.31 IOV-85 420 60 51 200 85 160
5.04.43 IOV-110 485 88 88 225 110 160

 

 

 
 
Cat. No.

Low Frequency Withstand Voltage

kV

Leakage distance

mm

Routine Test Tensile Strength

daN

 

Minimal Breaking Tensile Strength

daN

Minimum Breaking Moment Cantilever Strenght

daNm
Dry Wet
5.04.31 135 95 790 2700 6000 350
5.04.43 135 95 790 2700 6000 550

 

Cat. No.

50% Impuls Flashover Voltage

kV

Mean Value Breaking Tensile Strenght

daN

Minimum Breaking Moment Cantilever Strenght

daNm

Weight

kg
Negative Pozitive
5.04.31 290 210 7000 370 16,8
5.04.43 290 210 7000 750 29

 

 

 

Top tie insulator for overhead traction lines 25kV,50Hz

 
Cat. No.

Low Frequency Withstand Voltage

kV

Leakage distance

mm

Routine Test Tensile Strength

daN

Minimal Breaking Tensile Strength

daN
Dry Wet
Horisontaly Verticaly
5.04.32/II 130 110 110 790 2430 5400

 

Cat. No.

Low Frequency Flashover Voltage 

kV

Impuls Withstand Voltage 

kV

Weight

kg
Dry Wet
Horisontaly Verticaly
5.04.32/II 137 116 116 200 16,8

 

 

 

 

Strut insulator for overhead traction lines 25kV,50Hz
Cat. No.

Low Frequency Withstand Voltage

kV

Leakage distance

mm

Mean Value Breaking Tensile Strenght

daN

Minimal Breaking Tensile Strength

daN
Dry Wet
Horisontaly Verticaly
5.04.58 130 110 110 790 4485 7475

 

 

Cat. No.

Low Frequency Flashover Voltage 

kV

Impuls Withstand Voltage 

kV

Minimum Breaking Moment Cantilever Strenght

daNm

Weight

kg
Dry Wet
Horisontaly Verticaly
5.04.58 137 116 116 200 236 15,4

 

 

 

 

 

 

 

Strut insulator for overhead traction lines 25kV,50Hz

for polluted area

 

Cat. No.

Low Frequency Withstand Voltage

kV

Leakage distance

mm

Mean Value Breaking Tensile Strenght

daN

Minimal Breaking Tensile Strength

daN
Dry Wet
Horisontaly Verticaly
5.04.59 130 110 110 1070 4485 7475

 

 

Cat. No.

Low Frequency Flashover Voltage 

kV

Impuls Withstand Voltage 

kV

Minimum Breaking Moment Cantilever Strenght

daNm

Weight

kg
Dry Wet
Horisontaly Verticaly
5.04.59 137 116 116 200 236 18,2

 

 

 

 

 

 

Insulator for overhead traction lines with 

working voltage up to 1500V

                    

Strut bracket insulator 5.04.41

Support insulator  5.04.42

 

 

 

Cantilever top insulator  5.04.40

 

 

 

 

Cat. No.

Voltage

V

Minimal Breaking Tensile Strength

daN

Weight

kg
Nominal Maximum
5.04.40 1500 1800 1400 2,6
5.04.41 1500 1800 2400 4,7
5.04.42 1500 1800 1400 2,8

 

  

 

 

 

 

 

 

Line post insulators for overhead 

traction lines 3000V D.C.

Copper thimble  5.01.1.4.43

 

 

Cat. No. Type

Low Frequency Flashover Voltage 

kV

Puncture Voltage

daN

Weight

kg
Dry Wet
5.01.1 EŽ-1 90 60 170 4,6
5.01.1/1 EŽ-1S 90 60 170 4,5

 

 

 

 

 

 

 

Line post insulators for overhead 

traction lines 3000V D.C.
      

 

 
Cat. No. Type

Low Frequency Flashover Voltage 

kV

Puncture Voltage

daN

Weight

kg
Dry Wet
5.01.1 EŽ-1 90 60 170 4,6
5.01.1/1 EŽ-1S 90 60 170 4,5

 

 

 

 

 

 

 

 

 

Insulators for overhead traction lines 

with working voltage up to 750V
 

Insulator Cat. No.  5.05.5                     Insulator    Cat. No.  5.06.13 

         

Saddle type insulator 5.04.54            Insulator Cat. No.  5.06.12

 

Cat. No. Glaze Colour

Voltage

V

Weight

kg
Nomonal Maximum
5.05.5 braon 750 900 0,410
5.04.54 braon 750 900 0,330
5.06.12 bela 750 900 0,400
5.06.13 bela 750 900 0,420