EMERSON KJ4001X1-CH1 Analog output module

For wider cable spreads or wider ducts, at least two 1/0 AWG cables should be provided as illustrated in figure 3-27. The guard wires should be spaced at least 30 cm (12 inches) apart and be not less than 30 cm (12 inches) nor more than 45 cm (18 inches) inside the outermost wires or the edges of the duct. To be effective, the guard wires must be bonded to the earth electrode subsystem at each terminating facility. Exothermic welds provide the most effective bonding. Since the guard wire and protected cables are embedded in the earth, the applicable zone of protection is not known.Experimental use of a buried guard wire embedded in soil above and parallel to buried cable runs not enclosed in metal conduit has provided effective attenuation of lightning-induced transients. Use of the guard wire is recommended for protection of buried equipment lines not enclosed in metal conduit. Bare 1/0 AWG copper wire has provided the most effective protection during experimental use.

Company advantages

Main brands: ABB, GE/FANC, FOXBORO, Invensys TRICONEX, Bentley BENTLY, A-B Rockwell, Emerson, OVATION, MOTOROLA, XYVOM, Honeywell HONEYWELL, Rexroth, KUKA, NI, DEIF, Yokogawa, Woodward WOODWARD, Ryan, Schneider SCHNEIDER, Yaskawa, Moog, PROSOFT, etc

Application industry: widely used in metallurgy, oil and gas, glass manufacturing, aluminum, petrochemical, coal mine, paper and printing, textile printing, machinery, electronic manufacturing, automobile manufacturing, tobacco, plastic machinery, electricity, water conservancy, water treatment/environmental protection, municipal engineering, boiler heating, energy, power transmission and distribution, etc.

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