JE-Series Extension Poles. Foam Core Extension Poles. Jameson’s original foam core pole is the highest quality fiberglass pole available. The foam core prevents debris and moisture build up inside pole and adds extra hoop strength and rigidity. Meets requirements of OSHA Subpart R 1910.269 (j)(1)(i): Every JE series pole is tested to 100KV per foot for 5 minutes. Kits are also available.