Description
Necessary Information about Fixed Installation Insulator
Every wire or cable needs insulation to provide the best and safest performance. In fact, most of the wires and cables consist of four major layers: conductor, insulator, filler, and sheathing. This structure can maximize the performance of an electrical device and the safety of wiring. The fixed installation insulator granule is a widely used insulator, which is analyzed in detail here.
What Is Fixed Installation Insulator?
The fixed installation insulator is a polymer product manufactured with a specific percentage of PVC. Since IEC 60502 is the applicable standard in the production of fixed installation insulator granules, this kind of insulator is introduced as PVC/A within the range of 0.6–1 V. In fact, the fixed installation insulator is mainly utilized to manufacture various types of power cables within the above voltage rage. This insulator is usually achromatic.
Applications of Fixed Installation Insulator
This type of insulator is usually employed to manufacture the following kinds of wires:
- Interior wiring of panels
- Power distribution wires
- Flexible single-stranded wires
- Wiring of pipes under plaster
- Light cables of 300–500 V
- Single-stranded and multi-stranded wires
- Steel wire or dry wire (fixed installation wire)
Advantages of Fixed Installation Insulator
Insulators cover the outer parts of conductors (i.e., copper or aluminum wires) to prevent them from contacting each other; therefore, they make wiring operations and electrical devices safe. The fixed installation insulator can also be employed to prevent the users of wires and cables from being shocked or electrocuted.
UNIT |
RESULT |
STANDARD LIMIT |
STANDARD |
PROPERTY |
N/MM2 |
16 |
MIN:12.5 |
IEC60227 IEC60811 |
Tensile |
% |
200-210 |
Min:125 |
IEC60227 |
Elongation |
gr/cm3 |
1.46 |
– |
ASTM.D1895 |
Gravity |
SHORE:A |
80 |
– |
ASTM.D2240 |
Hardness After 15-30min |
MIN |
70 |
– |
IEC811.3.2 |
Thermal Stability At 200c |
C |
70 |
Operating Temperature |
Final Words
The fixed installation insulators are considered the widely used polymer products presenting the first nonconductive layer in contact with conductors. Hence, their resistance to the electrical current heat is of great importance. The fixed installation granules can be either chromatic or achromatic.
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