Per NEC 250.52(A)(3)(1): ?Aconcrete-encased electrode shall consist of at least 20ft of one or more bareor zinc galvanized or other electrically conductive coated steel reinforcingbars or rods of nit less than ?? in diameter, installed in one continuous 20ftlength, or if in multiple pieces connected together by the usual steel tiewires, exothermic welding, or other effective means to create a 20ft or greaterlength?My question? Does the electrodehave to be 20ft long, or do we just need 20ft of rod in the foundation? As stated above, code says ?one continuous20ft length?, but I have others saying the ?multiple pieces? part allows you tojust put any length of rod in the foundation, as long as they are tied togetherand equal a total of 20ft (not continuous). Example: a contractor claims a 5ft deep shaftw/ (4) #4 vertical bars & #4 ties meets code. That equals 20ft total, but not continuous. I say it has to be one continuous length of20 ft. What do y?all think?