Surge Protection
Surge Protection
(OP)
Is it a requirement in IEC to use surge-protection-device for digital and analogue pairs coming into DCS from the field? Will it be acceptable in IEC to use surge-protection-device only at 230V power distribution panel supplying power to DCS (and no surge-protection-device for 24V-dc-digital/4-20mA-analogue pairs?)






RE: Surge Protection
Plus while you can ask IEC, the interpretation of their standards, they are not the enforcing agency, I would think.
Rafiq Bulsara
http://www.srengineersct.com
RE: Surge Protection
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RE: Surge Protection
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