4. PROTECTIONS TECHNIQUE SUMMARY

4.1 LIMITATION OF INTERFERENCES REALIZED BY THE CIRCUIT

• Enclose the noise source in one screened zone
• Filtrate the conductors that get out from the circuit
• Limit the signals rise times
• Equip the relay bobines and the contacts with devices attenuation
• Screen and/or Schermare e/o weave (twist) the signal's conductors
• Put on the ground the cables' screen