"CLASS A and CLASS B " WIRING CONCEPT

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krishdkiller
Posts: 3
Joined: Sat Jul 11, 2015 7:08 am
Location: Kolkata

"CLASS A and CLASS B " WIRING CONCEPT

Post by krishdkiller »

CAN ANY ONE TELL ME WHILE COMMISSIONING A LOOP IN XLS 1000 , ALTHOUGH THE LOOP IS OF " CLASS A" WIRING , WHY DO I NEED TO SELECT "CLASS B" ?

NOTE : AS I HAVE FOUND AND UNDERSTOOD ::: CLASS A = LOOP ENDS BACK IN PANEL . CLASS B = LOOP ENDS AT THE FIELD .

PLEASE CORRECT ME IF I'M MISTAKEN AT ANY POINT
Leo
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Joined: Thu Dec 11, 2008 7:52 am

Re: "CLASS A and CLASS B " WIRING CONCEPT

Post by Leo »

you are making a class A circuit class B.
you say "I need to select class B" why need. what did you read or who told you you NEED to make it class B

Frankly, I do not like making a SLC circuit class A even if it is ran as a class A circuit.
weird things happen, comm fails, false alarms
briac
Posts: 93
Joined: Sat Jul 28, 2012 10:16 am
Location: GMT+3

Re: "CLASS A and CLASS B " WIRING CONCEPT

Post by briac »

Leo wrote:you are making a class A circuit class B.
you say "I need to select class B" why need. what did you read or who told you you NEED to make it class B

Frankly, I do not like making a SLC circuit class A even if it is ran as a class A circuit.
weird things happen, comm fails, false alarms
sorry Leo but I don't understand;
on an handred loop that I manage I always wire it in class A and never have problem.
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