ANSI ESD S6.1:2005 pdf download.For the Protection of Electrostatic Discharge Susceptible Items.
Equipment Grounding Conductor: The conductor used to connect the non-current carrying metal parts of equipment, raceways and other enclosures to the main service equipment ground bus.
Equipotential: Having the same electrical potential; of uniform electrical potential throughout.
Grounding Electrode Conductor: A conductor used to connect the ground electrode(s) to the equipment grounding conductor, to the grounded conductor, or to both at the main Service, at each building or structure where supplied from a common service, or at the source of a separately derived system
Level 2 Technical Elements: Any ESD technical element that is connected in series to common point ground or to a common connection point through another technical element.
Isolated Ground: A separate equipment grounding conductor, which is only bonded to the ground bus fat the main service equipment) and a receptacle. It is permitted to pass through electrical panels, junction boxes etc., without being bonded to the equipment grounding conductor which services those devices. An Isolated ground is not to be used to derive an ESO ground.
Isolated Ground Receptacle: A special electrical outlet that contains a separate equipment grouncng conductor. The electrical receptacle is usually orange in color and has a colored tnangle marked on the face of the receptacle. See Figure 4.
4.0 PERSONNEL SAFETY
The procedures and equçrnent described in this document may expose personnel to hazardous electrical conditions. Users of this document are responsible for selecting equipment that complies w’th applicable laws, regulatory codes and both internal and external company policy. Users are cautioned that this document cannot replace any requirements for personnel safety.
Ground fauli circuit interrupters (GFCI) and other safety protection should be considered wherever personnel might come into coniact with electrical sources. Electrical hazard reduction practices should be exercised and proper grounding instructions for equipment must be followed.
5.0 TECHNICAL REQUIREMENTS
All of the ESD technical elements used in the EPA shall be connected to the selected ESD groundingbonding reference point.
5.1 ESD GroundingBondlng Reference Point
The application and the physical environment will dictate the choice of the actual grounding system that will provide the best overall ESD protective system. The user of this document must select from the following systems in order to establish the ESD grounding /bonding reference point (see paragraph 5.1.1,5.1.2, and 5.1.3).
5.1.1 AC Equipment Ground
Within an EPA. the AC equipment ground is the preferred ground when available. The equipment grounding conductor electrically bonds the AC equipment ground to the ground bus at the main service equipment panel of the facility AC equipment within the EPA and all of the ESD technical elements will be at or near the same electrical potential when this system Is used. See Figure 1. Figure 1A. Figure 5 and Figure 6.
5.1.2 Auxiliary Ground
Some facilities require the use of a separate or supplemental ground system. When this is the case, the auxiliary ground shall be bonded to the AC equipmeni ground when possible. In the event that it Is not possible to electrically bond the two ground systems, it should be noted that AC equipment and the ESD technical elements might be at significantly different electrical potentials. See Figure 2.
5.1.3 Equipotentlal Bonding
Electrically interconnecting all of the ESD technical elements, the personnel within the work area, and the equipment Under serv,ce. equalizes electrical charges between the items to allow safe handling of ESD susceptible items. See Figure 3.
5.2 Connections to the ESD Grounding! Bonding Refecence Point
All ESD technical elements used in the EPA must be electrically connected to the selected ESD groundingibonding reference point.
