7/27/2019 Bus Bar Tubing[1]

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Reduces bus bar clearance

requirements

Protects against accidental flashover

Continuous operatingo o

temperature: -40 C to 125 C

Meets the requirements ofESI 09 13

Halogen free

oShrink Temperature : 120 C

Track Resistant

Suitable for medium voltage

switchgear applications up to36 kV

High dielectric strength

Good Weather/ UV

M-Seal Bus Bar Tubings are made of specially formulated, irradiation cross-linked,

flame-retardant, track-resistant polyolefins which will shrink to fit rectangular,

square or round bus bars. These tubing's are especially designed for insulating

medium voltage bus bars (till 36kV). We have developed M-seal Bus Bar Insulation

tubings with only one word in mind: SAFETY. These are highly recommended for

covering exposed bus bars in pillar, boxes, electrical switch gears, cabinets and bus

ducts. This greatly reduces the risk of accidental electrocution of personnel

working on or near live bus bars.

The tubes are highly flexible, enabling them to be easily installed on curves and

bends without fear of cracking. They are available in different sizes to cover the

entire range of copper and aluminum bus bars. They are available in wide range of

expansion ratios so each size of tubing fits over a wide range of bus bars. The

tubings are ideal for original equipment assembly and for retrofit applications

where access to only one end is available. The M-Seal bus bar heat-shrinkable

tubes are also ideal for installation on overhead lines to protect against accidental

bridging caused by birds and animals.

Bus Bar Tubing

7/27/2019 Bus Bar Tubing[1]

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Fully Shrunk

di wi

Expanded

Di

Dimensions Chart

Said Size

MAT 30/10

MAT 35/12

MAT 40/16

MAT 42/19 mw

MAT 42/19 tw

MAT 60/29

MAT 76/38

MAT 100/49

MAT 130/50

Internal diameter

as recovered

10

11

16

17

17

27

36

49

49

di

Recovered

Wall thickness

2.5

3

4

3.5

4.5

3.5

3.5

3.8

4

wi

Diameter as

supplied

32

37

42

44

44

62

78

102

134

Di

Technical Specifications

Properties

Density

Longitudinal Change

Tensile strength

Ultimate Elongation

Shrink Temperature

Continuous Operating

Temperature0

Heat Shock, 4 Hrs @ 225 C

Properties after Thermal Aging0

168 hrs @ 150 C

Tensile strength

Ultimate Elongation

Corrosion Resistance

Low Temperature Flexibility

Flammability

Fungus Resistance

Di-electric strength

Relative Permittivity

Volume ResistivityTracking Resistance

Water Absorption

Unit

gm/cc

%2

N/mm

%0C

0C

2N/mm

%

kV/mm

ohm.cm

%

Testing Methods

ASTM D 792

ESI 09-13

ASTM D 638

ASTM D 638

ASTM D 2671

ASTM D 2671

ASTM D 638

ASTM D 638

ASTM D 2671

ESI 09-13

UL 94HB

ASTM D 2671

ASTM D 149

ASTM D 150

ASTM D 257ASTM D 2303

ASTM D 570

Typical Value

1.22