According to Wayne Whitney :
On 2007-04-29, wrote:

Clamp the SE to the wall where it comes out of the pipe and pack the
end of the pipe with duct seal to keep the critters/rain out.

Thanks for the advice, I'll do that.

Yes, that should do the trick:

1) Deburr the PVC at both ends - eg: curved file, or sandpaper
around a chunk of dowel. (this may be excessively fussy, but
it's good workmanship anyway)

2) Clamp the SER close to the conduit, but form the wire
so that it's held away from the edges of the conduit - eg:
plastic conduit clamps against the wall with a bit
of slack going into the pipe. Allows for thermal
expansion/contraction and minor pulls and tugs. If the
wire is in contact with the edge, even with plastic, vibration
and expansion/contraction movement _may_ cut the insulation,
even with (tho less than with metal) with plastic.

3) DUX seal the ends of the conduit. You're going to need
this in any event.

With metal conduit, you need rubber boots on it, tho, if
enclosed in a box, the DUX may be sufficient.

Having a piece of conduit going thru a wall and ending in a box
without sealing the conduit is a recipe for a fi moist air
flow + live connections - corrosion - heat - poof.

House down the street burned down because of an unsealed
service conduit entering the back of the panel.

The inside end of your conduit is open, and isn't much of a
problem that way, but the outside end is in the disconnect
IIRC.
--
Chris Lewis,

Age and Treachery will Triumph over Youth and Skill
It's not just anyone who gets a Starship Cruiser class named after them.