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MAIN TABLES AND FIGURES

Minimal section of conductors

01

Voltage Drop

As stated in the NBR 5410:2004 Brazilian Standard - Low Voltage Electrical Hookups, item 6.2.7.2, the voltage drop cannot be over 4% in a terminal circuit, however in higher voltage equipment with a higher initial voltage, during the initial starting period the voltage drop can be greater, as long as the permissible limits comply with the respective standards. 

See the voltage drop table below on insulated PVC products operating at 70°C and room temperature at 30°C, installed as stated in the B1 reference method.

 

Calculation

Voltage drop (V) = Tabulated voltage drop (V/A.Km) x circuit current (A) x length (Km).

Voltage drop (%) = Voltage drop (V) / Circuit voltage (V) x 100

 02

 

Tabela de corrente em plena carga de motores CA - 60 hz

03

 

Tabela de Método de Instalação

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