IEEE 1222-2011 pdf download IEEE Standard for Testing and Performance for All-Dielectric Self- Supporting (ADSS) Fiber Optic Cable for Use on Electric Utility Power Lines
3. Definitions
For the purposes of this document, the following terms and definitions apply. The IEEE StandardsDictionary: Glossary of Terms & Definitions should be referenced for terms not defined in this clause.
3.1 General definitions
ADSS: All-Dielectric Self-Supporting Fiber Optic Cable
breaking strength or breaking tension: Breaking strength is the maximum tensile load that the cable shalwvithstand without mechanical failure. The Maximum Rated Cable Load (MRCL) is typically less than 60%of the breaking strength. The breaking strength should be calculated. The design model must be validated:the cables do not need to be tested to their breaking strength.
everyday tension (EDT): The everyday tension is the final tension with no ice and no wind at the averageannual mean temperature throughout the vear. This temperature is assumed as 16’C (60 F). This number isoften used in specifying motion control devices such as vibration dampers.
hardware: Attachments or fittings that are in direct contact with the cable.
maximum installation tension (MIT) or sagging tension (SAT): This is the initial tension at which thecable is pulled during the sagging portion of the installation process. This tension is used to achieve theappropriate installation sag defined by the manufacturer.
NOTE–This is the same as the initial everyday tension (EDT) when specified at 16 °C (60 °F).
maximum rated cable load (MRCL): This is the maximum tensile load the cable is designed to withstandduring its lifetime. This is sometimes called the maximum rated design tension (MRDT) by the IEEE or themaximum allowed tension (MAT) by IEC. This is typically the load the cable is designed to take when thecable is installed in its maximum specified span length while experiencing the maximum specified weatherload.
stringing tension (STT): The stringing tension, also known as the pulling tension is defined as the tensionused to pull the cable through sheaves during the stringing portion of the installation process. This should
never be greater than the sagging tension.
System (ADSS system): The cable and hardware described in IEEE Std 1222 function as an integratedunit.
3.2 Electrical definitions
dry band arcing: When wet pollution on ADSS cable jacket dries, high resistance dry bands form.Induced voltage of sufficient magnitude across dry bands will produce an arc that can potentially damagethe jacket.
electric field: The change in space potential over a change in distance. Basic concept is E dV/ds and Eis a vector that has magnitude and direction, Magnitude described in units of volts/meter (commonabbreviations are V/m, kV/m, and kV/cm). Direction may be in the fori of components such as Ex, Ey.and Ez or given by unit direction vectors (Ux.Uy.Uz).
induce voltage (Voc): In IEEE Std 1222, Voc refers to the induced voltage across a formed dry band in theabsence ofan arc,often called “Voltage open circuit”
NOTE-Refer to Annex D for more information.