300.3(C)(1) and 725.48(B)(1)

[Dale001289]

I just want to be sure I understand this issue: The subcontractor has crammed 7cables, multiconductor and multipair, into a single 2" conduit (underground duct bank), consisting of ITC-ER with 300V insulation and TC-ER w/600V insul.
They originate from 3 different sources but terminate at a common load (control panelboard) - therefore they are apparently, functionally associated.
Aside from the obvious potential for conduit overfill (and the fact I just don't like it) is there any NEC violation here?

Almost forgot to mention, this is a Class I, Division 2 location.

 

[iwire]

I just want to be sure I understand this issue: The subcontractor has crammed 7cables, multiconductor and multipair, into a single 2" conduit (underground duct bank), consisting of ITC-ER with 300V insulation and TC-ER w/600V insul.
They originate from 3 different sources but terminate at a common load (control panelboard) - therefore they are apparently, functionally associated.
Aside from the obvious potential for conduit overfill (and the fact I just don't like it) is there any NEC violation here?

Almost forgot to mention, this is a Class I, Division 2 location.

What class are the supplies?

In other words describe the three sources.

 

[Dale001289]

What class are the supplies?

In other words describe the three sources.

(2 multiconductor TC-ER 600V cables) from 5kV Switchgear to Vendor Control Panel, 'MOCB' auxiliary 'Run Status' contacts @ 125VDC -- (Class 1, non-power limited, 727.5?)

(5 multipair ITC-ER 300V cables) from 480V MCC to Vendor Control Panel, 'M' contacts 'Run Status' contacts @ 24VDC -- (Class 2 Table 11B)?