Quality control in the measurement of parameters of electrical connections according to brazilian standard

The Brazilian Standard of Plugs and Sockets for domestic use was created with the purpose of unify the electrical connections used inside the residences. In addition to giving consumers more security due to the new design, the proposed changes also lead to a reduction in the use of adapters and extensions. The standardization of the plugs and sockets has generated changes and a great adaptation in the electrical materials industries of the country. Production processes, quotas and quality control procedures had to be reformulated and revised. This work makes an analysis of the conformity of the dimensions of plugsand socketswith the information defined in the new Brazilian standards. In the methodology used are the use of measurement systems with coordinate measuring machine to verify parallelism and perpendicularity and the caliper and micrometer to check the measures of the pins, holes and others parameters. The results are confronted with the specifications of the current regulatory standard, where conflicts between the connections found in the retail market and the specifications defined in ABNT NBR 14136 v4 2013 are highlighted.