Insulated Sodium Conductors

Assessment of sodium conductor distribution cable

“…The c o e f f i c i e n t of f r i c t i o n f o r polyethylene-insulated conductors, w i t h o r without c o n c e n t r i c n e u t r a l w i r e s , h a s been measured a g a i n s t f i b e r s u r f a c e s a t 2S°C, a s about 0.3 t o 0.4. The d a t a from t h e t e n s i l e t e s t s of Humphrey e t a1 (26) , i n t e r p o l a t e d , s u g g e s t a PE y i e l d 2 s t r e s s a t 49°C (129°F) of about 503 N/cm (730 p s i ) which is about 63% of t h a t . a t 25°C (77°F).…”