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???
12/22/09 16:17
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#171864 - Transients
Responding to: ???'s previous message
Raghunathan said:

1. Power ( 3 Ph.electric motor, full load current 4.9A ) : Multistrand copper cable 2.5 Sq.mm (Rating 1100V and 25A when laid inside a hose)
2. Digital I/O ( max solenoid current 1.28A) : Multistrand copper cable 1.0 Sq.mm x 2 core for each solenoid ( Rating :110V / 7A)
3. Analog Signal ( 4-20mA from pressure and temperature sensor) : 0.25 Sq.mm x 2 core


Ragu,

Without the motor spec, I'd be a bit leery of 20m cable voltage drops on startup.


List of 22 messages in thread
TopicAuthorDate
Sizing of copper cables            01/01/70 00:00      
   It is Your USA customer again?            01/01/70 00:00      
      Not the USA client....            01/01/70 00:00      
         Customer likes copper?            01/01/70 00:00      
   machanical strength against what?            01/01/70 00:00      
   Sounds like nonsense to me!            01/01/70 00:00      
   Give him what he wants...            01/01/70 00:00      
      Don't forget the cost            01/01/70 00:00      
         No, no...            01/01/70 00:00      
   Transients            01/01/70 00:00      
   Mechanical Integrity of cabling            01/01/70 00:00      
      The best way to do the job right ?            01/01/70 00:00      
         Very doubtful of what you just said...            01/01/70 00:00      
            If you present firm requirements ...            01/01/70 00:00      
               Well then...            01/01/70 00:00      
                  Replies pretty well sum up ....            01/01/70 00:00      
                     Flexing ?            01/01/70 00:00      
                  Not really            01/01/70 00:00      
                     No reason to argue...            01/01/70 00:00      
                        no need to test the cable            01/01/70 00:00      
                           Most cables lives a sheltered life            01/01/70 00:00      
                        That's where things go off the rails            01/01/70 00:00      

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