IEEE Std 1300-2011 pdf download – IEEE Guide for Cable Connections for Gas-Insu lated Substations.
main-circuit connection interface: A part of the main circuit providing the current path between the GIS conductor and the cable termination. metal-oxide surge arrester (MOSA): A surge arrester utilizing valve elements fabricated from nonlinear resistance metal-oxide materials. pipe-type cable termination: A cable termination that comprises separating insulating barrier and other termination components that are designed to withstand high fluid pressures of the pipe-type cable system. removable link connector: A removable connector between the GIS conductor and the end of the cable termination. sheath voltage limiter (SVA): A device connected to a sheath or to the sheaths of specially bonded cables intended to limit sheath voltages. The three main types are: gapless metal-oxide surge arrester, nonlinear resistances in series with spark gaps, and spark gaps. surge suppressor: A device operative in conformance with the rate of change of current, voltage, power, etc., to prevent the rise of such quantity above a predetermined value. This device, commonly comprised of one or more valve elements (non linear resistors) is commonly used for cable connection parts that are separately grounded. valve element: A resistor that, because of its nonlinear current-voltage characteristic, limits the voltage across the arrester terminals during the flow of discharge current and contributes to the limitation of follow current at normal power-frequency voltage.
4.2 Over voltage protection If a metallic ground connection between part 6 or part 11 and part 13 of Figure 2 for fluid-filled cable terminations and Figure 4 for dry-type cable terminations, and across part 16 in Figure 6 for pipe-type cable terminations is not feasible, non-linear resistors (part 15 in Figure 2 and Figure 4 and part 19 in Figure 6) may be connected across the insulated junction to limit the voltage under transient conditions. For further details, refer to Clause 11. 5. Typical dimensions Typical dimensions for cable connections are given in Figure 3 for a type of construction with fluid-filled cable terminations frequently used with extruded dielectric cables, Figure 5 for a type of construction with dry-type cable terminations for extruded cables, and in Figure 7 for a type of construction frequently used with pipe-type cables. Typical dimensions shown in Figure 3 and Figure 5 are in millimeters. All dimensions in Figure 3 and Figure 5 comply with corresponding figures in IEC 62271-209 ed.1.0 (2007).