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Isulated pipes

MÜ III – Thin-walled flexible plastic pipes

Type: MÜ III.

Standard: VSZMTS 06.30/2001. (MSZEN 61386 except dimensions)

Field of application: Applicable for protection of insulated electrical cables. Installation may be made with building into the wall chase or above the false ceiling or can be laid. Tubes are applicable in rooms having “C” and “D” classification for inflammable risk (between temperature range of (-5) °C and (+60) °C without any strong mechanic effects. The type of protection will be specified by the properties of pipe network and its accessories and the development of connections.

Material: Rigid PVC for electrical use

Colour: grey

Dimensions:

D = nominal diameter (mm)

v = nominal wall thickness (mm)

Description and nominal sizes of the protective pipe:

Description

D (mm)

d min. (mm)

MÜ III.

11

12,1

11

 

13,5

14,6

13,5

 

16

17,2

16

 

23

24,4

23

 

29

30,8

29

 

36

38,2

36

 

48

50,6

48

Execution: in bundles with length of 2,5 metres or according to requirements of customers.

Raw Material:

Densityg/cm31,6
Tensile strengthMPa40
Elongation at break%15
Specific volumetric resistance at 20 °COhm x cm1 x 1015
Breakdown voltagekV/mm20

Execution of Product: Smooth surface outside and inside with round cross-section

Strength properties:

Flexibility: Before bending practical to preheat the bending length along the contour by rubbing or any other way to 40-45 °C. By smaller diameters (MÜ III. 11-16.) practical to use the bending insert and bed produced by VSZM. By bigger diameters (above MÜ III 23.) necessary to use the bending insert after preheating on.

Compressing strength: on the result of 125 N compression lasting dents (less than 10%), the decrease of the outside diameter is less than 25%, there is no crack on the surface.

Impact resistance: After treatment at 60 ± 2 °C for 240 hours and then at -5 °C during 2 hours at least 9 from 12 test tubes will not be broken under effect of 0,6 J.

Heat-resistance: 60 ± 2 °C

Ignitability: tubes are hardly inflammable according to V0 and self extinguish

Electrical properties:

Electric strength: Tubes comply with requirements in case of test at 2000 V during 15 min. after immersion in water during 24 hours.

Aids for bending and joining

Bending insert for the tube: Applicable for nominated diameter of 11, 13,5 and 16 mm for cold bending

Material: flexible PVC

Colour: optional

Bending bed for tubes: Applicable for nominated diameter of 11, 13,5 and 16 mm for cold bending

Material: flexible PVC

Colour: optional

Expanding mandrel: Applicable for expanded cold joining for tubes with nominated diameter of 11, 13,5 and 16 mm.

Material: rigid PVC

Colour: optional


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  • Isulated pipes

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