5. Except in the cases hereinafter provided for, every person, company, association or corporation who or which carries on electrical installation work, as a contracting electrician or chief journeyman, must, under the penalties hereinafter enacted, first obtain a licence from the board of examining electricians, according to law.
R. S. 1964, c. 152, s. 5; 1969, c. 51, s. 66; 1978, c. 54, s. 4.