R (Signal Ground Reference Subsystem Checklist for New Facilities). These four may be found at the end of the manual as reproducible forms.
Functional description
Existing facilities. Typically, existing C4ISR facilities have been built to a variety of building codes that either directly dictated specific grounding and bonding practices or indirectly restricted what could be done. Consequently, the practices may vary or be incomplete with respect to other environmental grounding and bonding practices.
Before being passed on
Major modifications to the grounding system may need to be done in phases or may need to wait until a major equipment upgrade is being performed so that the new grounding measures can be implemented as a part of the equipment changeover. Figure 6-1 illustrates a sample filled-out form for use by electrical inspectors in completing the DA Form 7452-4-R (Earth Electrode Subsystem Checklist for Existing Facilities).
Application industry
The products can be used in the following industries: power plant, paper making, steel, mining, rubber, water supply, cement, chemical industry, glass, printing
Textile, machinery, plastics, coatings, medicine, hospitals, food, hotels, scientific research institutions
This article from the temporal Ming sheng automation equipment co., LTD., reproduced please attach this link: http://www.stockdcs.com/