Why selected cable colour red yellow and blue in 3 phase Electrical system?

Categories >> Engineering >> Electrical Engineering
Suggest New Category

Why selected cable colour red yellow and blue in 3 phase
Electrical system?

Question Posted / guest

9 Answers
24610 Views
Crompton Greaves, Essar, Gridco, I also Faced
E-Mail Answers

Answers were Sorted based on User's Feedback

Why selected cable colour red yellow and blue in 3 phase Electrical system?..

Answer / abulfaiz

THEY ARE THE INTERNATIONAL STANDARD COLORS FOR THE
THREE PHASE SYSTEM. MAY BE IF WE SET SOME OTHER THREE
COLORS SUCH AS WHITE BLACK & GREY MEANS THEN THE SAME
QUESTION ARISES.....
WHY WHITE BLACK AND GREY???:)

Is This Answer Correct ?

19 Yes

10 No

Why selected cable colour red yellow and blue in 3 phase Electrical system?..

Answer / ravichand n

its universal colour code for 3-phases

Red-R phase
Yellow-Y phase
Blue- B phase
black - neutral
green- earth

Is This Answer Correct ?

12 Yes

7 No

Why selected cable colour red yellow and blue in 3 phase Electrical system?..

Answer / pawan singh chauhan

AC three phase system colors {red,yellow,blue + green for earth} based on IEC(International Electrotechnical Commission)and NEC(The National Electricity Code)
because these colors are universal in india & easily detected if cables are heated

For DC system wire colors { Brown,White,Grey,orange} also based on IEC(International Electrotechnical Commission)and NEC(The National Electricity Code)

Is This Answer Correct ?

3 Yes

0 No

Why selected cable colour red yellow and blue in 3 phase Electrical system?..

Answer / rupinder singh

Red,Yellow and Blue are basic colors,and in 3 phase system we required to differentiate between the 3 phases while seeing them so they were selected.

Is This Answer Correct ?

7 Yes

5 No

Why selected cable colour red yellow and blue in 3 phase Electrical system?..

Answer / suhail

Those are standard colours

Is This Answer Correct ?

7 Yes

6 No

Why selected cable colour red yellow and blue in 3 phase Electrical system?..

Answer / *avi

Because they are easily distiguishable. And Used as
international standard colors.

Is This Answer Correct ?

4 Yes

3 No

Why selected cable colour red yellow and blue in 3 phase Electrical system?..

Answer / dinesh

those are standards which are following every where....in
electrical

Is This Answer Correct ?

8 Yes

9 No

Why selected cable colour red yellow and blue in 3 phase Electrical system?..

Answer / nishanth

This three coloursvare international standard..
And these three colors are the main colors..
To mix the colors u will get white and all colours..

Is This Answer Correct ?

0 Yes

2 No

Why selected cable colour red yellow and blue in 3 phase Electrical system?..

Answer / bharat b wankhade

Intensity is more and easily differential according to indian atmosphere.....

Is This Answer Correct ?

0 Yes

2 No

Post New Answer

More Electrical Engineering Interview Questions

What are marginally stable systems?

0 Answers

what is the function of CRGO in a Transformer?

6 Answers

why starter use to on a motor

6 Answers Emco,

what is the lemen of a single 5mm 13000mcd white led pls reply

1 Answers Eskom, Sona,

WHAT IS THE DIFFERENT BETWEEN MCB & MPCB? & HOW IS USE?

3 Answers Gandour,

what is the mean of"turbo" in turbo alternator???

1 Answers CCCL,

Define conversion efficiency of a power amplifier.

0 Answers

how induction generator generated the power without excition like syncronous generator.

3 Answers

What is the acceptance value of leakage current in HI POT test

2 Answers CPCL,

how do skin effect is reduced when hallow cond or stranded cond are used ?

1 Answers

How to take Vector group test of Transformer?

16 Answers Sunflag Steel, Zuari Cements,

when it is possible kvrah lead & fundamental kwh be equal in electonic trivector meters (3 ph)

0 Answers

For more Electrical Engineering Interview Questions Click Here