Tabela para o eletricista escolher a bitola do fio, em função
da potência e da corrente em circuitos em 127volt, com calibragem do condutor
para que a perda de tensão não exceda 2,0 volts.
Todo eletricista, precisa saber utilizar a tabela para que possa dimensionar o fio adequado a potencia e amperagem, pensando sempre em colaborar com meus colegas, elaborei esta tabela para que sirva sempre de modelo nas aplicações do dia-dia. sempre deixando claro que esta tabela é de uso comum em residência é comercia, mais tem outras com mais detalhes, pois dependendo do local onde os cabos serão utilizado, no cálculo entra outras grandezas elétricas.
vamos para um exemplo na pratica: ao atender seu cliente ele informa que quer passar um circuito para 3 poste no seu jardim de sua fabrica. você sabendo a distancia do quadro de distribuição até os dito postes, igual a 27 metros, e a potencia das lâmpadas igual a 1000w; pronto siga o exemplo em destaque em vermelho da tabela, serve tanto em 127v como em 220v. fio 4,0mm e disjuntor arredonda para cima 10amper.
vamos para um exemplo na pratica: ao atender seu cliente ele informa que quer passar um circuito para 3 poste no seu jardim de sua fabrica. você sabendo a distancia do quadro de distribuição até os dito postes, igual a 27 metros, e a potencia das lâmpadas igual a 1000w; pronto siga o exemplo em destaque em vermelho da tabela, serve tanto em 127v como em 220v. fio 4,0mm e disjuntor arredonda para cima 10amper.
Carga do
circuito em watts
|
Valor da
corrente em Amperes
|
Comprimento do circuito em metros
|
9 -
12 -15 -18 -21- 24 - 27 -30- 33- 36 -39 -43- 46- 49- 52- 55- 58- 61
|
||
500w
600w
700w
800w
900w
1 000w
1 200w
1 400w
1 600w
1 800w
2 000w
2 200w
|
4,5 A
5,5 A
6,4 A
7,3 A
8,2 A
9,0 A
10,0 A
11,5 A
14,5 A
16,5 A
18,2 A
20,0 A
|
1,5 1,5 1,5
1,5 1,5 1,5 1,5 2,5
2,5 2,5 2,5 2,5 4,0 4,0 4,0 4,0 4,0
4,0
1,5 1,5 1,5
1,5 1,5 2,5 2,5 2,5 2,5
2,5 4,0 4,0 4,0 4,0 4,0 4,0 4,0
4,0
1,5 1,5 1,5
1,5 2,5 2,5 2,5 2,5
4,0 4,0 4,0 4,0 4,0 4,0 6,0 6,0 6,0
6,0
1,5 1,5 1,5
1,5 2,5 2,5 2,5 4,0
4,0 4,0 4,0 4,0 6,0 6,0 6,0 6,0 6,0
6,0
1,5 1,5 1,5
2,5 2,5 2,5 4,0 4,0
4,0 4,0 4,0 6,0 6,0 6,0 6,0 6,0 6,0
6,0
1,5 1,5 2,5
2,5 2,5 4,0 4,0 4,0
4,0 6,0 6,0 6,0 6,0 6,0 6,0 6,0 10 10
1,5 2,5 2,5 2,5 4,0 4,0 4,0 4,0 6,0 6,0 6,0 6,0 6,0 6,0 10 10 10 10
1,5 2,5 2,5 4,0 4,0 4,0 4,0 6,0 6,0 6,0 6,0 6,0 10 10 10 10 10 10
2,5 2,5 4,0 4,0 4,0 6,0 6,0 6,0 6,0 10 10 10 10 10 10 10 16 16
2,5 4,0 4,0 4,0 6,0 6,0 6,0 6,0 10 10 10 10 10 10 16 16 16 16
2,5 4,0 4,0 4,0 6,0 6,0 6,0 6,0 10 10 10 10 10 16 16 16 16 16
2,5 4,0 4,0 6,0 6,0 6,0 10 10 10 10 10 16 16 16 16 16 16 16
|
Tabela para o eletricista escolher a bitola do fio, em função da potência e da corrente em circuitos em 220volt, com calibragem do condutor para que a perda de tensão não exceda 4,0 volts.
tabela 220v
|
Carga do circuito em watts
|
Valor da corrente em Amperes
|
Comprimento do circuito em metros
10 - 15 -20 -25-30- 35 -40- 45- 50-
55- 60 -65-70- 75- 80- 85- 90- 95-
|
|
|
|
|
|
1000w
1500w
2000w
2500w
3000w
3 500w
4000w
4500w
5000w
5500w
6000w
6500w
7000w
|
4,5 A
6,5 A
9,4 A
11,3 A
13,2 A
15,0 A
18,0 A
20,5 A
22,5 A
25,0 A
27,2 A
29,0 A
31,0A
|
1,5 1,5 1,5 1,5 1,5 1,5 1,5 1,5 1,5 2,5 2,5 2,5 2,5 2,5 2,5 2,5
2,5 4,0
1,5 1,5 1,5 1,5 1,5 1,5 2,5
2,5 2,5 2,5 2,5 4,0 4,0 4,0 4,0
4,0 4,0 6,0
1,5 1,5 1,5 1,5 2,5 2,5 2,5 2,5 4,0 4,0 4,0 4,0 4,0 6,0 6,0 6,0
6,0 6,0
1,5 1,5 1,5 2,5 2,5 2,5 4,0 4,0 4,0 4,0 6,0 6,0 6,0 6,0 6,0 6,0
6,0 10
1,5 1,5 2,5 2,5 2,5 4,0 4,0 4,0 6,0 6,0 6,0 6,0 6,0 6,0 10 10 10 10
2,5 2,5 2,5 2,5 4,0 4,0 4,0 6,0 6,0
6,0 6,0 6,0 10 10 10 10 10 10
2,5 2,5 2,5 4,0 4,0 4,0
6,0 6,0 6,0 6,0
10 10
10 10 10 10 10 16
4,0 4,0 4,0 4,0 4,0 6,0 6,0 6,0
6,0
10 10 10 10 10 10 16
16 16
4,0 4,0 4,0 4,0 6,0 6,0 6,0
6,0 10 10
10 10 10
16 16 16 16 16
4,0 4,0 4,0 4,0 6,0 6,0 6,0 10 10
10 10 10 16 16 16 16 16 16
6,0 6,0 6,0 6,0 6,0 6,0 10 10 10 10 16
16 16 16 16
16 16 16
6,0 6,0 6,0 6,0 6,0 6,0 10 10 10
10 16 16
16 16 16
16 16 16
6,0 6,0 6,0 6,0 6,0 10 10 10
10 16 16
16 16 16
16 16 16
16
|
