Burying overhead lines

Im burying my overhead powerlines as well as my telus phone line (no fiber optic in my rural area yet)

i want to do the digging asap. Im wondering what telus’ requirement is for conduit. Is 1” orange(comms) conduit, suffice? I am putting in a 2”grey pvc for the electrician to pull the new electrical wires into. 1 trench, 2 conduits spaced out … please help?