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IEEE Recommended Practice for the Protection of Wire-Line Communication Facilities Serving Electric Supply Locations, 2007
- IEEE Recommended Practice for the Protection of Wire-Line Communication Facilities Serving Electric Supply Locations
- Title page
- Introduction
- Notice to users [Go to Page]
- Errata
- Interpretations
- Patents
- Participants
- CONTENTS
- 1. Overview [Go to Page]
- 1.1 Scope
- 1.2 Purpose
- 2. Normative references
- 3. Definitions, acronyms, and abbreviations [Go to Page]
- 3.1 Definitions
- 3.2 Acronyms and abbreviations
- 4. High-voltage environment [Go to Page]
- 4.1 Coupling
- 4.2 Disturbances [Go to Page]
- 4.2.1 Ground potential rise
- 4.2.2 Longitudinal induction
- 4.2.3 Lightning
- 4.2.4 Switching surges
- 4.2.5 Other disturbances
- 5. Protection apparatus
- 6. Service types, reliability, service performance objective (SPO) classifications, and transmission considerations [Go to Page]
- 6.1 Service types
- 6.2 Service performance objective classifications [Go to Page]
- 6.2.1 Class A service performance objective considerations
- 6.2.2 Class B service performance considerations
- 6.2.3 Class C service performance considerations
- 6.3 Transmission considerations
- 7. Protection theory and philosophy [Go to Page]
- 7.1 Special wire-line protection design requirements
- 7.2 Dedicated cable
- 7.3 Concepts and concerns
- 7.4 General-use telecommunication cable in the electric supply location GPR zone of influence
- 8. Protection configurations [Go to Page]
- 8.1 Ground potential rise plus induced voltage levels [Go to Page]
- 8.1.1 Voltage level quantification
- 8.1.2 Voltage Level I
- 8.1.3 Voltage Level II
- 8.1.4 Voltage Level III
- 8.2 Basic protection system
- 8.3 Protection configurations employing isolation devices [Go to Page]
- 8.3.1 Basic isolation protection configuration
- 8.3.2 Protection at the electric supply location
- 8.3.3 Protection at the central office or non-electric supply location remote location
- 8.4 General isolation protection configuration [Go to Page]
- 8.4.1 Dedicated cable
- 8.4.2 Remote drainage
- 8.4.3 Local terminal
- 8.4.4 Composite protection system
- 8.5 Protection configurations employing neutralizing transformers
- 8.6 Protection configuration employing neutralizing in parallel with isolation on separate pairs
- 8.7 Protection configuration employing neutralizing in tandem with isolation
- 8.8 Protection configuration employing modular high dielectric and optic isolators
- 8.9 Protection practices for electric supply locations services [Go to Page]
- 8.9.1 Description of protection table and protection schematic chart
- 8.9.2 Protection table for electric supply location services (Table 1)
- 8.9.3 Simplified protection schematic chart (Figure 22)
- 8.9.4 Use of protection table and schematic chart (Table 1 and Figure 22)
- 8.9.5 Treatment of idle, and unassignable or spare pairs and/or equipment
- 9. Installation and inspection considerations [Go to Page]
- 9.1 Installation considerations related to neutralizing transformers
- 9.2 Periodic inspection
- 10. Safety [Go to Page]
- 10.1 General safety considerations
- 10.2 Safety considerations in equipment design
- 10.3 Safety considerations related to installation and maintenance
- 11. Summary
- Annex A (informative) Characteristics of protection apparatus
- Annex B (informative) Comparison of carbon blocks, gas tubes, and solid-state protectors
- Annex C (informative) Protection of isolating, drainage, and neutralizing transformers and other apparatus by surge arresters
- Annex D (informative) Transmission characteristics and SPO requirements for various communication channels
- Annex E (informative) DC offset waveform development
- Annex F (informative) High dielectric fiber-optic isolation systems
- Annex G (informative) Theoretical verses actual field experience GPR and related ZOI profiles
- Annex H (informative) Bibliography [Go to Page]