Air Force conductive-floor and grounding requirements

Category 12 of the AFMAN inspection table covers hazardous explosives areas involving weapons. It assigns checks to the user or the Base Civil Engineer (BCE).

The annual BCE inspection in row 12a applies to nuclear facilities and does not replace the user’s inspection schedule. The annual BCE inspection of SPDs in row 12f carries no nuclear-facility qualifier. An SPD visual inspection may consist only of checking its operating indicator lamp.

AFMAN 32-1065, paragraph 11.2.5, assigns visual inspections and continuity tests of portable straps connecting equipment to the static grounding bus to the user because those straps are not real property.

AFMAN 32-1065, paragraph 11.1, directs inspectors to inspect and test facilities for compliance with NFPA 77, Static Electricity, except as modified in the AFMAN. It describes NFPA 77 as containing the minimum acceptable static grounding and bonding requirements for Air Force activities.

AFMAN 32-1065, paragraph A7.7, requires the room to be free of exposed explosives before instruments are used for conductive-floor tests.

AFMAN 32-1065, row 12g, refers hazardous explosives areas to four checks in category 13, which otherwise covers non-hazardous explosives areas involving weapons.

Row 12g does not reference category 13b or 13c.

Category 12 already contains its own equipment-bond requirements in rows 12b and 12c. Its wording is not identical: row 12c says less than 1 ohm, while rows 13c, 13g, and 13i say 1 ohm or less. That distinction is preserved from the source.

AFMAN 32-1065 addresses static bus bar and continuity-test readings in several places:

The 1-ohm table criterion differs from the instruction to investigate readings above 3 ohms. The AFMAN does not state a single acceptance rule reconciling those passages.

The long-conductor note has specific conditions. Outside those conditions, these passages do not authorize accepting a reading between 1 and 3 ohms. The AFMAN does not state that the note overrides the table’s requirements.

DAF-added paragraph V2.E3.4.7.3 requires grounding to be tested when installed to ensure that design specifications are met, and at the intervals prescribed in AFMAN 32-1065. Tests and inspections must be documented on appropriate forms or automated products.

Before electrical continuity or resistance tests, or electrical repairs, paragraph V2.E3.4.7.3.1 requires removal of all exposed explosives, electrically initiated devices (EIDs), and explosives dust, gases, and vapors subject to initiation under the specific circumstances.

The base DESR section V2.E3.4 states that permanent equipment touching conductive floors or tabletops must not be considered grounded. It also requires static grounds to be bonded to the facility grounding system.

For the corresponding DoD and Army provisions, see equipment bonding and conductive-floor contact.

In the absence of technical order (TO) guidance, DAF-added paragraph V2.E3.4.10 provides techniques for static grounding. Paragraph V2.E3.4.10.1 states that protective clothing is not a substitute for personnel static grounding.

One listed technique, paragraph V2.E3.4.10.1.3, is conductive footwear used on conductive floors, mats, or runners, provided that the surface is properly grounded. This is one listed technique, not a requirement to use conductive flooring in every operation.

DAF-added paragraph V1.E6.17.3.1 prohibits cleaning compounds containing wax or oil on conductive floors or surfaces.

The conductive-floor wax and residue guide explains the separately worded Army and DoD provisions.