Grounding Electrode Conductor Size For Parallel Feeders at Evelyn Wegner blog

Grounding Electrode Conductor Size For Parallel Feeders. It appears that the engineer had sized the grounding electrode conductor based on table 250.122 and used a 600kcmil conductor. If the grounding electrode conductor or bonding jumper connected to a ground ring does not extend on to other types of electrodes that require a. Connect the equipment grounding conductors in parallel in each cable if the circuit conductors are connected in parallel. If a service consisted of three 250 kcmil copper conductors per phase in parallel (750 kcmil), the grounded conductor would need to be sized at a minimum of 2/0 awg. I recently inspected a 800 amp 120/208 volt main breaker service with parallel 500 mcm feeders. Simply increasing the equipment grounding conductor size is not adequate in all cases.

Ground Conductor Sizing Chart
from miaali.z21.web.core.windows.net

It appears that the engineer had sized the grounding electrode conductor based on table 250.122 and used a 600kcmil conductor. Connect the equipment grounding conductors in parallel in each cable if the circuit conductors are connected in parallel. If the grounding electrode conductor or bonding jumper connected to a ground ring does not extend on to other types of electrodes that require a. I recently inspected a 800 amp 120/208 volt main breaker service with parallel 500 mcm feeders. Simply increasing the equipment grounding conductor size is not adequate in all cases. If a service consisted of three 250 kcmil copper conductors per phase in parallel (750 kcmil), the grounded conductor would need to be sized at a minimum of 2/0 awg.

Ground Conductor Sizing Chart

Grounding Electrode Conductor Size For Parallel Feeders Simply increasing the equipment grounding conductor size is not adequate in all cases. It appears that the engineer had sized the grounding electrode conductor based on table 250.122 and used a 600kcmil conductor. If a service consisted of three 250 kcmil copper conductors per phase in parallel (750 kcmil), the grounded conductor would need to be sized at a minimum of 2/0 awg. Simply increasing the equipment grounding conductor size is not adequate in all cases. I recently inspected a 800 amp 120/208 volt main breaker service with parallel 500 mcm feeders. If the grounding electrode conductor or bonding jumper connected to a ground ring does not extend on to other types of electrodes that require a. Connect the equipment grounding conductors in parallel in each cable if the circuit conductors are connected in parallel.

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