How About The Safety Performance Of Fiber Optic Cable?

1. Proof of historical practice;

Aluminum alloy cables have been developed and used in the United States in 1968 for 43 years. The product has been widely used, and the market share of North American countries has reached 80%. After 43 years of practice, the aluminum alloy cable has never had any failure and is safe.

2. Testing and certification;

The aluminum alloy cable has passed the testing and certification of UL in the United States, CUL in Canada, SAIGLOBAI in Australia, and SAIGLOBAI in Australia. The alloy conductor meets the requirements of CSA standard C22.2 clause 38 on ACM alloy conductors, and the performance requirements of the latest version of GB12706.1-2008 and IEC60502.1, as well as UL's related standards for the AA8000 series.

3. The effect of aluminum alloy composition;

◆The addition of rare earth and iron to the aluminum alloy conductor greatly improves its electrical conductivity and connection performance. Especially when the conductor is annealed, the addition of iron produces high-strength creep resistance. When the current is overloaded, the iron continues to play The connection effect of the aluminum alloy conductor will not cause creep.

◆ Creep is extremely harmful to the cable. If the cable creeps, the contact point is not tight enough, and the pressure decreases, which makes the contact resistance increase rapidly. After the current flows, the joint will be overheated. If the cable is not regularly checked and repaired, it will be safe. Hidden dangers. It is very important to solve the problem of cable creep.

◆ Creep: Under the action of temperature, external force and self-weight, metal will slowly produce permanent deformation that cannot be restored with the passage of time. This phenomenon is called creep.

4. Flame retardant performance

The insulation material of the aluminum alloy cable is flame-retardant silane cross-linked polyethylene (XLPE), and the self-locking armored structure is adopted in the process. The heat dissipation performance is far better than that of the PVC sheath. It can quickly dissipate heat and the flame can be quickly extinguished after the flame disappears. , Will not extend to other materials, excellent flame retardant performance. The aluminum alloy cable adopts new materials and new technology, which can ensure its safer use.