US Army - Electrical Design- Lightning and Static Electricity Protection, 04. 01. ELECTRICAL, 01. Książki ...

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ARMY TM
AIR FORCE AFM 88-9
5-811-3
CHAP. 3
ELECTRICAL DESIGN
LIGHTNING AND STATIC
ELECTRICITY PROTECTION
DEPARTMENTS OF THE ARMY AND THE AIR FORCE
MARCH 1985
REPRODUCTION AUTHORIZATION/RESTRICTIONS
This Manual has been prepared by or for the Government and is pulic property and not subject to
copyright.
Reprints or republications of this manual should include a credit substantlly as follows" Joint Departments of
the Army and Air Force USA, Technical Manual TM 5-811-3/AFM 88-9, chpater 3, Electrical Design Lightning
and Static Electricity Protection."
*TM 5-811-3
AFM 88-9, Chap. 3
Technical Manual
No. 5-811-3
Air Force Manual
AFM 88-9, Chapter 3
DEPARTMENTS OF THE ARMY
AND THE AIR FORCE
Washington, DC,
29
March
1985
ELECTRICAL DESIGN
LIGHTNING
AND STATIC ELECTRICITY PROTECTION
Paragraph
Page
CHAPTER 1.
GENERAL
Purpose . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Scope . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Application . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Applicable codes and standards . . . . . . . . . . . . . . . . . . . . . .
Design development . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Approved type systems.....,..,.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Materials . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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1-1
CHAPTER 2.
LIGHTNING PROTECTION
Discussion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Limitations in use of lightning protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Air terminals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Grounding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Nonreinforced concrete or wood frame buildings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Reinforced concrete buildings . . . . . . . . . . . . . . . . . . . . . . . .
Steel frame building with nonconducting roof and sides . . . . . . . . .' . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Metal clad building with steel framing . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Building containing hazardous areas . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Classified communications building . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Aircraft control-navigation aids..., . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Igloos . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Fences . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Railroads . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Weapon system electronic facilities above ground . . . . . . . . . . . . . . . . . . . . . . .
Weapon system electronic facilities below ground . . . . . . . . . . . . . . . . . . . . . . . . .
Electrically-controlled target training system . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Petroleum oil lubricants (POL) facilities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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CHAPTER 3.
STATIC ELECTRICITY PROTECTION
Discussion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Bonding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Grounding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Hazardous locations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Petroleum oil lubricants (POL) facilities . . . . . . . . . . . . . . . . . . . . . . . . . . .
Weapon systems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Classified communications buildings.. . . . . . . . . . . . .
Corrugated steel arch type igloos for storage of MB-1, GAM-87 and GAR cased propellant
type weapons . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Airplane parking aprons . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Airplane hangar floors . . . . . . . . . . . . . . . . . . . . . . . . .
Conductive flooring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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3-2
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APPENDIX A. REFERENCES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
A-1
*This
manual supersedes TM 5-811-3, 28 August 1978.
TM 5-811-3/AFM 88-9, Chap. 3
CHAPTER 1
GENERAL
1-1. Purpose.
Information and criteria in this man-
ual will guide engineering design personnel in deter-
mining the adequacy of lightning and static electric-
ity protection systems for all types of facilities.
Policy and procedure of design development and
tests are also included. Referenced criteria, codes,
and standards are intended to include provisions for
normal type facilities, which when integrated with
criteria included herein, establish complete provi-
sions for these protection systems. The standards
and methods of system protection discussed are in-
tended as the most practical and economical means of
accomplishing protection of real property and avoid-
ance of casualties to personnel. These criteria will not
provide suitable protection for construction contrac-
tors’ personnel.
b. Environmental considerations.
Design consid-
eration will be given to overall appearance so as to
maintain an attractive facility in harmony with area
surroundings.
c. System components.
Components will conform
to applicable NFPA codes, except as otherwise
stated or indicated.
d. Penetration of building exterior surfaces.
Where roofing, walls, floor and waterproofing mem-
branes are penetrated by components of these sys-
tems, adequate waterproofing and caulking of such
penetrations will be provided. However such pene-
trations will be avoided whenever possible.
1-5. Applicable codes and standards.
Codes
and standards referenced in this manual and listed in
Appendix A are to be considered as an integral part
of this manual,
1-2. Scope
a. General.
The scope of this manual will include
adequacy of engineering design for facilities of Army,
Air Force and other agencies in conformance with
paragraph 1-3.
b. Limitations.
Limitations within continental
1-6. Design development
a. Lightning protection system.
When contract
drawings comprise more than one sheet showing
composite roof and architectural elevation, a separate
sheet will be provided showing locations of air termi-
nals, routing of roof conductors, down conductors,
and grounding system pattern.
b. Static electricity protection system.
Where
static electricity protection for two or more rooms or
areas is indicated on an architectural floor plan and
cannot be shown on an appropriate electrical plan, a
separate floor plan sheet showing the complete static
electricity protection system pattern will be included
in the project design.
‘
United States will be subject only to specific provi-
sions of project design directives, deviations included
herein or authorized by HQDA (DAEN-ECE-E)
WASH DC 20314-1000, for Army projects, and
HQUSAF/LEEE WASH DC 20332, for Air Force
Projects.
c. Other protection systems.
These criteria are not
intended to support or implement separate criteria
such as furnished for electromagnetic protection or
electromagnetic shielding requirements.
1-3. Application.
Except as included for facilities
of the Army Materiel Development and Readiness
Command, criteria contained in this manual will ap-
ply to new construction of permanent, fixed type fa-
cilities conforming to AR 415-15 within the continen-
tal United States. Where conflicts arise with criteria
or design guidance of different Army or Air Force
agencies, or with Federal organizations other than
Army or Air Force, the most stringent guidance will
govern. Criteria or design guidance will apply to
overseas facilities in conformance with AR 415-36.
1-7. Approved type systems
a. Lightning protection.
Selection of the type of
protective system will be as prescribed in this man-
ual, NFPA No. 78, and MIL–HDBR-419.
b. Static electricity protection.
Selection of system
type will be prescribed in NFPA No. 77,
MIL-HDBR 419, and MIL-STD-188-124.
1-8. Materials.
Materials will conform to applicable
NFPA codes, unless otherwise stated. Normally,
copper materials will be specified for use below fin-
ished grade. Stainless steel grounding devices should
be used when there is a potential of galvanic corro-
sion of nearby steelpipes. UL listed compression-
type connectors may be used where such connectors
are equivalent to the welded type. Special considera-
tion will be given to selection of materials to compen-
1-4. General
a. Separate section of a specification.
Inasmuch as
provisions for lightning protection involve a special
type (steeple jack) trade, contract requirements for
lightning and static electricity protection will be in-
cluded as a separate section in project specifications.
1-1
TM 5-811–3/AFM 88–9, Chap. 3
sate for the following conditions as encountered at
corrosion. This must be prevented by use of same
project locations:
type metals, or by providing junctions of dissimilar
(1) Corrosive soils and atmosphere.
metals in air that will permanently exclude moisture.
(2) Atmospheric and ground contact corrosion.
(4) Equal mechanical strength or fusing capabil-
(3) Electrolytic couples that will accelerate cor-
ity where conductors of different metals are joined.
rosion in the presence of moisture or ground contact
1-2
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