I want to expand the invisible pet fence in the backyard. I contacted the company to inquire what type of wire they used. I was told the wire is 14g stranded copper with a 44 XLPE jacket.

In my interwebz search I cannot really find anything for XLPE jacket. I did find wire listed as XHHW and it seems to be similar.

This wire would be spliced to the the existing wire and buried about 6" underground. I would told there is no electricity and it only transmit a radio signal.

Is this the type of wire im looking for? https://www.homedepot.com/p/So...e-37092471/205810726

quote:

44 XLPE

You can buy the XLPE wire here. This wire is rated for burial, the home depot wire is not.

This is usually called RHH-RHW-2/USE-2 cross link poly. The jacket is rated for direct burial. The 44 appears to insulation thickness i.e. .044 in.
What mrw referenced appears to be correct.

A local electrical supply house may have or be able to order this for you if you buy in standard package quantity usually a 500 ft. roll.

May be a good idea to use a moisture resistant splice.