Splitting conductors in conduit

[haywire]

I have to run to number twos and the number for ground in a 1 inch PVC conduit 100ft from pillar to pillar I didn't run the conduit it's proving to be quite the chore. There's another one inch pipe it would be so much easier just to run one number two in 1 conduit and 1 number 2 and the number for ground in the other conduit. But for some reason I'm thinking there's the reason I shouldn't do that just looking for a quick refresher why shouldn't do that.. I believe it's going to be a 240 light fixture going on top of this pole but there is the possibility that it is only 120.. and I can't change the conduit because it's cemented, it's been a long couple days and my head hurts

 

[qcroanoke]

I have to run to number twos and the number for ground in a 1 inch PVC conduit 100ft from pillar to pillar I didn't run the conduit it's proving to be quite the chore. There's another one inch pipe it would be so much easier just to run one number two in 1 conduit and 1 number 2 and the number for ground in the other conduit. But for some reason I'm thinking there's the reason I shouldn't do that just looking for a quick refresher why shouldn't do that.. I believe it's going to be a 240 light fixture going on top of this pole but there is the possibility that it is only 120.. and I can't change the conduit because it's cemented, it's been a long couple days and my head hurts

see 300.3 (B) 2017

 

[luckylerado]

See also 300.0(B)(3).