HIMA Z7128 Control switching value

Product Details Introduction：

(b) Use longer ground rods. Rods longer than 10 feet may be used in high resistivity soil in place of a larger number of 10-foot rods. Where the ground water table is greater than 10 feet below the surface at any season of the year or where the frost line is greater than 10 feet, use the longer rods to maintain contact with the permanently moist, unfrozen soil. (c) Use horizontal wires or grids instead of vertical rods. Where bedrock or other obstacles prevent the effective use of vertical rods, horizontal wires, grids, or radials should be used. (d) Lower the soil resistivity through chemical enhancement (salting). Where the above alternatives are not possible or are not cost effective, chemical enhancement is frequently the only choice left.

Main products of the company

We focus on DCS, PLC, robot control system and large servo systems.

Main business: DCS system, PLC spare parts, various modules/cards, controllers, touch screens, servo drives.

Main brands  ABB Bailey, 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

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