Construction
Core wire (INVAR): Aluminum-clad INVAR Wire
Conductor (XTAL) : Extra Thermal Resistant Aluminum Alloy wire used for continuous allowable temperature up to 230oC
Standard
IEC, ASTM, JCS 1404
Application
XTACIR is normally used to up-rate an existing transmission line by simply replacing the existing conductor without tower modification or reinforcement.
Conductor size | Cross-sectional Area | Conductor construction | Approx. Overall diameter | Approx. Overall weight | Maximum DC resistance at 20oC | Minimum breaking load | Modulus of Elasticity | Coefficient of Linear Expansion |
| XTAL | AL-Clad invar | XTAL | AL-Clad invar | | | | | Up to transition point temperature | Over transition point temperature | Up to transition point temperature | Over transition point temperature |
mm2 | mm2 | mm2 | No.xmm | No.xmm | mm | kg/km | Ω/km | kN | Kgf/ mm2 | x10-6/oC |
160 | 153.1 | 49.48 | 24/2.85 | 7/3.0 | 17.3 | 774.6 | 0.1840 | 68.6 | 83.8 | 152.0 | 14.5 | 10.8 |
200 | 187.0 | 63.55 | 24/3.15 | 7/3.4 | 19.2 | 968.6 | 0.1500 | 83.4 | 84.7 | 152.0 | 14.2 | 10.8 |
240 | 224.4 | 79.38 | 24/3.45 | 7/3.8 | 21.2 | 1,184 | 0.1240 | 102.8 | 85.4 | 152.0 | 14.0 | 10.8 |
320 | 309.1 | 79.38 | 24/4.05 | 7/3.8 | 23.8 | 1,418 | 0.0924 | 114.3 | 80.2 | 152.0 | 15.5 | 10.8 |
400 | 381.6 | 101.6 | 24/4.50 | 7/4.3 | 26.6 | 1,776 | 0.0747 | 139.8 | 80.8 | 152.0 | 15.4 | 10.8 |
600 | 572.0 | 137.5 | 28/5.10 | 7/5.0 | 32.2 | 2,556 | 0.0503 | 197.1 | 79.3 | 152.0 | 15.8 | 10.8 |
ENG 
.JPG)
.JPG)
 -section.JPG)