Liquid Nitrogen

[veconomos]

I noticed one day that a nearby telephone poll had two liquid nitrogen cylinders attached near the top. I have never noticed anything like that before. Can someone explain why they may have been there?

[cs409]

must have been some major wet lines they where drying out! never seen liq ones on a pole, but a lot of Nitrogen gas cyc next to the pole on the ground or leaning on the pole.

[hbiss]

Yup. Nitrogen is injected under the jacket to dry them out. There are some lines that are always pressurized to keep moisture out.

-Hal