FOXBORO 130M-N4 Pneumatic controller
Inspect all cabling and connectors to see that balanced signal lines are used for lower frequency interfacing lines and that cable shields are grounded only at one end. The shields of individual cable pairs must be isolated from each other except at the common ground points. Check overall shields for grounding. Record any specifically noted deficiencies on the inspection form.
FOXBORO 130M-N4 Pneumatic controller
If the equipment is already installed, verify that the signal ground terminal is connected to the nearest feeder ground plate of the lower frequency signal ground network for the facility. Check the size of the cable to see that it conforms to the 500 cmil per foot or as otherwise specified. (9) Inspection requirements for higher frequency equipment include the following.
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