Si se utilizan cajas no metálicas de banda única con clavos y con cable NM, ¿cuál de las siguientes afirmaciones es verdadera?
a. No es necesaria la conexión a la caja.
b. La caja se conecta al cable mediante una presilla de conexión a tierra.
c. La caja se conecta al cable con cinta aislante.
d. La caja se conecta al cable con grapas de electricista ordinarias.
a. No es necesaria la conexión a la caja.
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