2120 – Telecommunications Protection II: Installation and Configuration
The purpose of this videotape is to continue on from SPT 19 the discussion of telecommunications protection. While SPT 19 presented protection devices, this module focuses on specific installation practice and typical configurations. After study of the course and associated workbook, participants should be able to understand the following overall concepts and apply them to their day-to-day activities. They will also be able to answer related questions on these subjects: Definition of types of communication service, Definition of SPO classification; A, B, C, Level of voltage rise at station, Protection requirements for different SPO classification and voltage level rise, HVSP configurations for different circuits, Location of protection (TELCO, RDL, HVI, NI), Selection and limitation of protectors, Grounding arrangements at RDL, TELCO and HVI, Grounding of dedicated cable sheath, Isolating of dedicated cable sheath, Surge arrester connections, Centre tapped isolating transformer as MDR, Location and mounting of HVI cabinet, Grounding of HVI, Installation of neutralizing transformer (typical), Need for rubber gloves, Primary winding connections to station and RDL grounds, Use of spare conductors in dedicated cable, Protection of unassigned pairs in dedicated cable, Connection of secondary windings, Insulation of isolating transformer (typical), HVI layout, terminal strips, ground bus, Remote side wiring, Station side wiring, Cable connections, Connection of protectors and MDRs, Circuit identification and documentation, Modular HVI, Installation pitfalls, Maintenance and inspection items, Safety considerations.
If you are taking this course for NERC credit, the following credits will be reported.