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Comparison of four kinds of cable metal sleeve main performance

Information Source:Henan Huadong Cable Co., Ltd Release date:2014-05-27

Fourth cable metal Taoxing common type is mainly: extrusion smooth lead sets, extrusion corrugated aluminum sleeve, welding corrugated aluminum sheath, aluminum-plastic composite protective layer. Here's a look at the advantages and disadvantages of them.

Extrusion smooth lead sheath

Advantage

1) without inner space design

2) compact internal structure

3) longitudinal waterproof performance is the best

4) the chemical stability and good corrosion resistance

5) cable soft

6) joint can be directly lead lined

Shortcomings

1) large equipment investment costs are high

2) resistivity is 7.5 times that of aluminum

3) the weight of the cable 60% heavier than aluminum sheathed cable

4) cross-sectional area much larger than aluminum sleeve

5) small mechanical strength anti vibration performance

6) cost than aluminum.

Corrugated aluminum sheath extrusion

Advantage

1) weight

2) short-circuit thermal stability capacity

3) mechanical strength

4) waterproof sealing performance

Shortcomings

1) susceptible to corrosion

2) as lead sheathed soft

3) the bending is not easy to become straight

4) can not be directly lead lined

Welding corrugated aluminium sheath

Advantage

1) small equipment investment and low cost

2) has the advantages of simple manufacturing process

3) weight

4) short-circuit thermal stability capacity

5) mechanical strength

6) waterproof sealing performance

Shortcomings

1) susceptible to corrosion

2) as lead sheathed soft

3) the bending is not easy to become straight

4) can not be directly lead lined

5) welding temperature led to grain structure changes

6) mechanical properties are not evenly on the circumference

Aluminum plastic composite shielding

Advantage

1) weight

2) cable diameter size small

3) low cost

Shortcomings

1) can only be used for short circuit capacity.

2) corrosion resistant ability

3) a low mechanical strength

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