Distribution Loss Factor Codes

TDSP Rate Classification/Voltage	DLF Code
Residential-Secondary	A
General Service < 10 kw-Secondary	A
General Service > 10 kw -Secondary	A
Lighting - Secondary	A
Primary	B
Transmission	T

The classifications with a Distribution Loss Factor (DLF) code of "A "are for delivery voltages up to and including 2400 volt single or 3 phase delta and 2400Y/4160 volt 3 phase service. Delivery voltages higher than this but less than 69 kV are DLF code "B". Delivery voltages of 69 kV or higher are DLF code " T".

Certain exceptions apply to delivery voltages of 2400 volt single or 3 phase delta and 2400Y/4160 volt 3 phase where the primary distribution system in the area is operated at these voltages. Service taken directly from the distribution line in these cases is considered primary and will have a DLF code of “B”.