When there is a problem with the grounding system(excessive grounding resistance,multi-point grounding,disconnection of the grounding wire or contact of the grounding wire with high-voltage,high-current equipment,etc.),it will cause electric shock injury to personnel and damage to equipment.It is understood that some DCS systems often”fail”(or”fail”for no apparent reason),mostly due to poor or problematic grounding systems.Therefore,perfect,reliable and correct grounding is the key to the safe,reliable and good operation of the DCS system.
当接地系统发生问题时(接地电阻过大，多点接地，接地线断线或接地线与高电压、大电流设备相接触等)，会造成人员的触电伤害及设备的损坏，据了解，有些DCS系统经常“死机”(或不明原因的“死机”)，大多是因为接地系统不良或存在问题所引起的。因此，完善、可靠、正确的接地，是DCS系统能够安全、可靠和良好运行的关键。
FOXBORO 870ITPH-AYFNZ-7 USPP 870ITPHAYFNZ7
FOXBORO D0138GP USPP D0138GP
FOXBORO L0113ZN USPP L0113ZN
FOXBORO L0119RT USPP L0119RT
FOXBORO 763RSACE30EU NSPP 763RSACE30EU
Foxboro Flowtube 4″ 9304A-SIBA-PSJ-GL
FOXBORO IGP10-T22D1F-K1T USPP IGP10T22D1FK1T
FOXBORO FWS-KBA3-E USPP FWSKBA3E
FOXBORO M40PR-RFE3F/PC USPP M40PRRFE3FPC
