High Tension Service is defined as service with distribution or transmission voltages of 4kV-138kV.

High Tension Service is defined as service with distribution or transmission voltages of 4kV-138kV.

• A. Service with voltages of 6kV-34kV.
• B. Service with voltages of 1kV-6kV.
• C. Service with distribution or transmission voltages of 4kV-138kV.
• D. Service with voltages above 200kV.

Answer: (C)

High tension service is defined by the voltage class of the service, specifically distribution or transmission voltages within a set window. In Con Edison practice, that window is 4 kV to 138 kV. So a service operating anywhere from 4 kV up to 138 kV fits the definition, because it uses distribution or transmission voltages within that range. Voltages below 4 kV are not included in high tension, and voltages above 138 kV fall into a higher category beyond this definition, often called extra-high or transmission.

High tension service is defined by the voltage class of the service, specifically distribution or transmission voltages within a set window. In Con Edison practice, that window is 4 kV to 138 kV. So a service operating anywhere from 4 kV up to 138 kV fits the definition, because it uses distribution or transmission voltages within that range. Voltages below 4 kV are not included in high tension, and voltages above 138 kV fall into a higher category beyond this definition, often called extra-high or transmission.