Fused and unfused conductors

[Design Electric Inc.]

I am looking for guidance on fused and unfused conductors in same gutter.

My senerio:
Unfused Service conductors (metered via ct's) located in a wireway installed just beneith the 2 service disconnects, of which are fed from these conductors.
I am installing a genset and xfr switches.
It would be adventageous for me to disconnect the load side of the 2 disconnects and feed normal power to the xfr swithes, however these conductors are now fused and would share the same wireway as the unfused service conductors.
What are the NEC requirements in as far as fused and unfused conductors in the same wireway? And what Art. is relevant.

 

[roger]

230.7 would be the article and section.

230.7 Other Conductors in Raceway or Cable
Conductors other than service conductors shall not be installed in the same service raceway or service cable.
Exception No. 1: Grounding conductors and bonding jumpers.
Exception No. 2: Load management control conductors having overcurrent protection.

Handbook commentary

All feeder and branch-circuit conductors must be separated from service conductors. Service conductors are not provided with overcurrent protection where they receive their supply; they are protected against overload conditions at their load end by the service disconnect fuses or circuit breakers. The amount of current that could be imposed on feeder or branch-circuit conductors, should they be in the same raceway and a fault occur, would be much higher than the ampacity of the feeder or branch-circuit conductors.

Roger