What happens when your Brookfield insulator cannot pass its gas? View 2
By Colin Jung; posted April 10, 2021
View Original: Click to zoom, then click to magnify(1280 x 720) 185KB
Combined photo of the bubble protruding inside of the skirt-- unbroken. The glass is thick around the bubble and I suspect it was formed after the insulator was released from the mold parts and being annealed.