1、Designation: E2377 10Standard Specification forShelter, Electrical Equipment, Lightweight1This standard is issued under the fixed designation E2377; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, the year of last revision. A numbe
2、r in parentheses indicates the year of last reapproval. Asuperscript epsilon () indicates an editorial change since the last revision or reapproval.1. Scope1.1 This specification covers two types of lightweight elec-trical equipment shelters designed for transport on theM1152A1, M1152A1 with B2 Armo
3、r Kit, M1037, and M1097High Mobility Multipurpose Wheeled Vehicle (HMMWV).These shelters are transported by rail, air, marine and highwaywhen mounted or dismounted from their vehicles.1.2 ClassificationThe shelters will be of the followingtypes, as specified (see 6.2).1.2.1 Type IShelter, Electrical
4、 Equipment, Lightweight(w/o Tunnel, 17-2-0035-1).1.2.2 Type IIIShelter, Electrical Equipment, Lightweight,Modified, General Purpose (w/ Tunnel, 17-2-0035-3).1.3 The values stated in inch-pound units are to be regardedas standard. The values given in parentheses are mathematicalconversions to SI unit
5、s that are provided for information onlyand are not considered standard.1.4 The following safety hazards caveat pertains only to thetest required portion, Section 4, of this specification: Thisstandard does not purport to address all of the safety concerns,if any, associated with its use. It is the
6、responsibility of the userof this standard to establish appropriate safety and healthpractices and determine the applicability of regulatory require-ments prior to use.2. Referenced Documents2.1 ASTM Standards:2E1851 Test Method for Electromagnetic Shielding Effec-tiveness of Durable Rigid Wall Relo
7、catable StructuresE1925 Specification for Engineering and Design Criteria forRigid Wall Relocatable Structures2.2 Commercial Standard:3SAE-AS8090 Equipment, Towed Aerospace Ground, Mo-bility2.3 Federal Standard:4FED-STD-595 Colors Used in Government Procurement2.4 Military Standards:4MIL-STD-209 Sli
8、nging and Tiedown Provisions for Liftingand Tying Down Military EquipmentMIL-STD-810 Environmental Test Methods and Engineer-ing GuidelinesMIL-STD-1366 Transportability CriteriaMIL-C-53072 Chemical Agent Resistant Coating (CARC)System Application Procedures and Quality Control In-spection2.5 Militar
9、y Handbook:4MIL-HDBK-1791 Designing for InternalAerial Delivery inFixed Winged Aircraft2.6 ACGIH Documents:5Threshold Limit Values2.7 Drawings:617-1-8565 Extension Kit, Pintle17-1-8584 Mounting Kit Shelter To HMMWV17-2-0035 Interface Control Drawing for, Shelter, ElectricalEquipment, Lightweight, Ty
10、pes I and III13228E1639 Standard Camouflage, Pattern For Shelter,Lightweight, Multipurpose1This specification is under the jurisdiction of ASTM Committee E06 onPerformance of Buildings and is the direct responsibility of Subcommittee E06.53on Materials and Processes for Durable Rigidwall Relocatable
11、 Structures.Current edition approved Oct. 1, 2010. Published October 2010. Originallyapproved in 2003 as PS 138 - 03. Last previous edition approved in 2004 asE2377 04. DOI: 10.1520/E2377-10.2For referenced ASTM standards, visit the ASTM website, www.astm.org, orcontact ASTM Customer Service at serv
12、iceastm.org. For Annual Book of ASTMStandards volume information, refer to the standards Document Summary page onthe ASTM website.3Available from SAE International (SAE), 400 Commonwealth Dr., Warrendale,PA 15096-0001, http:/www.sae.org.4Available from Standardization Documents Order Desk, DODSSP, B
13、ldg. 4,Section D, 700 Robbins Ave., Philadelphia, PA 19111-5098, http:/dodssp.daps.dla.mil.5Available from American Conference of Governmental Industrial Hygienists,Inc. (ACGIH), 1330 Kemper Meadow Dr., Cincinnati, OH 45240, http:/www.acgih.org.6Available from Shelter Technology, Engineering the gro
14、ss weight and mission equipment payload of theshelter; and the bearing pressure on the bottom shock elements.This information shall be visible with the shelter eithermounted or dismounted from the vehicle. The location of thecenter-of-gravity shall be determined by the contractor usingthe first arti
15、cle unit of production with simulated missionpayload.3.6 Recycled, Recovered or Environmentally PreferableMaterialsRecycled, recovered, or environmentally prefer-able materials should be used to the maximum extent possibleprovided that the material meets or exceeds the operational andmaintenance req
16、uirements, and promotes economically advan-tageous life cycle costs.3.7 ToxicityMaterials used shall cause no skin irritationsor other injuries and produce no vapor hazards, including theemission of toxic or noxious odors, to personnel, in or aroundthe shelter, under all environmental conditions. Ex
17、posure ofpersonnel to toxic substances shall not be in excess of thethreshold values contained in theACGIH Threshold Limit Val-ues.3.8 Flame ResistanceThe shelter shall be designed to befire resistant in accordance with Specification E1925.4. Verification4.1 Classification of InspectionsAlternative
18、test methods,techniques, or equipment, such as the application of statisticalprocess control, the contractor may propose tool control or costeffective sampling procedures. Acceptable alternative verifica-tion approaches, including the use of sample testing, shall beE2377 104identified in the contrac
19、t. The inspection requirements speci-fied herein are classified as follows:4.1.1 First Article InspectionWhen a first article inspec-tion is required, it shall be applied to the first article submittedin accordance with 3.1. Specific verifications to be performedshall be defined by the contract (see
20、 6.2) and shall includeverifications contained in Table 6.4.1.2 Conformance InspectionWhen a conformance in-spection is required (see 6.2), specific inspections to beperformed shall be defined in the contract (see 6.2) and shallinclude any verification contained herein.4.2 Physical Performance Verif
21、ication:4.2.1 Weight and Payload:4.2.1.1 WeightCompliance with 3.2.1 shall be determinedby weighing the shelter, the mounting kit, and the pintleextension including their associated hardware. The scale usedshall have 1 lb (453.6 g) or less graduation and shall have anaccuracy of at least 61 lb (453.
22、6 g). The scale shall have acurrent calibration, traceable to the National Institute forStandards and Technology. Any item exceeding maximumweight listed in Table 1 shall be considered a failure.4.2.1.2 PayloadRacks, shelves, attaching hardware, andindividual weights shall be installed in the shelte
23、r to simulatea payload of 3300 lb (1496.9 kg) (see 3.2.1) The simulatedpayload shall be distributed throughout the shelter (see 6.2).This simulated payload shall be used for all verifications whichrequire a payload, and any failure of this payload (racks,shelves, or attaching hardware) attributable
24、to the shelterduring the course of the test shall constitute failure of the testbeing performed.4.2.2 Parts Interchangeability:4.2.2.1 Spare-partsCompliance with 3.2.2.1 shall be de-termined by selecting two shelters from the production lot ofcompleted shelters. The parts listed in Table 2 shall bei
25、nterchanged between the shelters. The interchange shall beaccomplished by removing the fasteners, interchanging theparts and reinstalling the fasteners. Inability to interchange theparts or loss of functionality in accordance with 3.2.2.1 shallconstitute failure of this test.4.2.2.2 Interface PartsC
26、ompliance with 3.2.2.2 shall bedetermined by selecting one of each of the parts listed in Table3 from the production lot of completed shelters. The inter-change shall be accomplished by removing the fasteners,interchanging the parts and reinstalling the fasteners with agovernment furnished shelter/v
27、ehicle combination. Inability tointerchange the parts in accordance with 3.2.2.2 shall constitutefailure of this test.4.2.3 Shelter ConfigurationThe shelter shall be inspectedto determine compliance with 3.2.3. Failure to meet therequirements of 3.2.3 shall constitute failure of this test.4.2.3.1 Sh
28、elter Flatness and SquarenessThe followingflatness and squareness tests shall be performed to determinecompliance with the requirements with 3.2.3.1. Failure to meetthe requirements of 3.2.3.1 shall constitute failure of this test.(1) FlatnessThe flatness of the shelter panels shall bedetermined usi
29、ng a straight edge, that is at least 48 in. (120 cm)long, which is flat within 0.005 in. (0.13 mm) total. Two18-in.(3.2 mm) shims shall be placed under the straight edge, one ateach end. A series of measurements shall be taken along thelength of the straight edge, in both the horizontal and vertical
30、directions, across the shelters interior/exterior surfaces toidentify the largest cup or bow.(2) SquarenessThe shelter shall be tested in accordancewith Specification E1925. For the purpose of this test, anyhorizontal surface shall be considered a roof/floor and anyvertical surface shall be consider
31、ed a wall. In those regionswhere a 36 in. (90 cm) square is impractical, a square of theappropriate size shall be used and the allowed gap shall beproportional.4.2.3.2 Shelter DimensionsEach non-reference dimensionspecified on the interface drawing 17-2-0035 shall be mea-sured. Failure to meet the r
32、equirements of 3.2.3.2 shallconstitute failure of this test.TABLE 6 Sequence Of First Article VerificationsVerificationRequirementParagraphVerificationParagraphFlame Resistance 3.8 4.7Color and camouflage 3.3.7.1 4.3.7.1Identification 3.5 4.5Weight 3.2.1 4.2.1.1Spare parts 3.2.2.1 4.2.2.1Interface p
33、arts 3.2.2.2 4.2.2.2Door handle 3.2.8.1 4.2.8.1Shelter 3.2.3 4.2.3Flatness 3.2.3.1 4.2.3.1(1)Squareness 3.2.3.1 4.2.3.1(2)Electromagnetic interference (EMI) 3.3.2 4.3.2Roof loads 3.2.6 4.2.6Floor loads 3.2.7 4.2.7Door structure and hinge assembly 3.2.8.2 4.2.8.2Door stop 3.2.8.3 4.2.8.3Door maintain
34、ability 3.2.8.4 4.2.8.4Door drip edge 3.2.8.5 4.2.8.5Ladder 3.2.9 4.2.9Roof access steps/handholds 3.2.11 4.2.11Interface requirements 3.2.12 4.2.12Chemical and biological (CB) resistance 3.2.4 4.2.4Pressurization 3.2.5 4.2.5Temperature range 3.3.3.1 4.3.3.1Toxicity 3.7 4.6Humidity 3.3.3.5 4.3.3.5To
35、xicity 3.7 4.6Marine atmosphere 3.3.1 4.3.1Temperature shock 3.3.3.2 4.3.3.2Heat transfer 3.3.4 4.3.4Blowing dust/sand 3.3.5 4.3.5Sunshine (ultraviolet effects) 3.3.3.4 4.3.3.4Solar load 3.3.3.3 4.3.3.3Blackout 3.3.7.2 4.3.7.2Payload 3.2.1 4.2.1.2Fixed-wing air transport 3.4.2 4.4.2Flat-drop 3.4.6 4
36、.4.6.1Rotational drop 3.4.6 4.4.6.2Shelter placement 3.4.6 4.4.6.3Lifting and tiedown provisions 3.4.7 4.4.7Rotary-wing air transport 3.4.3 4.4.3Rail transport 3.4.1 4.4.1Ground mobility 3.4.4 4.4.4Watertightness 3.3.6 4.3.6Fording 3.4.5 4.4.5Impact Resistance 3.2.10 4.2.10Electromagnetic interferen
37、ce (EMI) (2nd time) 3.3.2 4.3.2Shelter dimensions 3.2.3.2 4.2.3.2Door handle (2nd time) 3.2.8.1 4.2.8.1Integration 3.2.3.3 4.2.3.3Torque 3.2.3.3 4.2.3.3(1)Pull-out 3.2.3.3 4.2.3.3(2)E2377 1054.2.3.3 IntegrationThe shelter shall be examined to de-termine compliance with 3.2.3.3. In addition, the shel
38、ter will beintegrated with one or more of the systems listed in Table 4(see 4.1). After the successful integration of the shelter,threaded fasteners shall be tested. Test fixtures shall befashioned to evaluate the shelters ability to securely holdthreaded fasteners (10-32 through 1/2-20 bolts). The
39、testfixtures shall be fashioned to induce only a twisting load to theshelter attachment point for the torque test and, primarily, onlyan axial tensile load through the centerline of the shelterattachment point for the pull-out test. Reaction forces appliedby the pull-out test fixture onto the shelte
40、r surface shall beoutside a 3 in. (7.6 cm) radius measured from the center line ofthe fastener being tested. Failure to meet the requirements of3.2.3.3 shall constitute failure of this test.(1) TorqueTo determine compliance, a torque load equalto 8 ft-lb (1.11 kg-m) for the 10-32 bolt and 10 ft-lb (
41、1.38kg-m), for the other bolts shall be applied to all fastenersinstalled in the shelter, fasteners used to integrate the system(see 4.2.3.3) should be used wherever possible. Failure to meetthe torque requirements of 3.2.3.3 shall constitute failure ofthis test.(2) Pull-outTo determine compliance,
42、a tensile loadequal to 800 lb (362.9 kg) for the 10-32 bolt and 1 000 lb(453.6 kg) for the other bolts shall be applied to all fastenersinstalled in the shelter, fasteners used to integrate the system(see 4.2.3.3) should be used wherever possible. Failure of meetthe pull-out requirements of 3.2.3.3
43、shall constitute failure ofthis test.4.2.4 Chemical and Biological (CB) ResistanceTo deter-mine compliance with the requirements of 3.2.4, it shall beverified that the shelter is finished in accordance with MIL-C-53072.4.2.5 PressurizationAir shall be supplied to the shelter, inoperational configura
44、tion, with all appropriate openings closed,and an internal pressure of 1.2-in. water gauge shall beobtained and maintained. The air pressure and air flow shall bestabilized. Any additional air supplied to maintain specifiedinternal pressure shall be recorded to determine compliancewith 3.2.5. Failur
45、e to meet the requirements of 3.2.5 shallconstitute failure of this test.4.2.6 Roof LoadsThe shelter roof shall be subjected to auniform load of 40 pounds per square foot (lb/ft2) (0.0195kg/cm2) over the entire surface. After removal of the uniformload, a 660-lb (299.4 kg) load over a 1- by 2-ft (30
46、- by 61-cm)area at the weakest area of the roof shall be applied. Each testshall be for a duration of 5 min. Failure to meet the require-ments of 3.2.6 both during the test and subsequent removal ofthe load shall constitute failure of this test.4.2.7 Floor LoadsThe shelters floor shall be uniformlyl
47、oaded to 65 lb/ft2(0.0317 kg/cm2) for 30 min. Prior to removalof the uniform load, all moveable parts shall be operated toensure no interference exists between components. Aftercompletion of the above test, the uniform load shall beremoved and a concentrated 1 000 lb load shall be applied overa 1- b
48、y 2-ft (30- by 61-cm) area centered on the floor and leftin position for 30 min. The 2-ft (61-cm) dimension shall beparallel to the shelters sidewall. Prior to removal of theconcentrated load, all movable parts shall be operated to ensureno interference exists between components. After completingbot
49、h of the above tests, the concentrated load shall be removedand a load of 125 lb (56.7 kg), balanced ona1in.2(6.45 cm2)block, shall be applied for 5 min to the center of the floor.Failure to meet the requirements of 3.2.7 shall constitute failureof this test.4.2.8 Door:4.2.8.1 Door HandleThe shelter door shall be securelyclosed.A48 lb (22 kg) load shall be applied to the door handlein the direction which best facilitates opening the door.After ithas been verified that 48 lb is adequate to open the door, thedoor shall be closed and a 48 lb (21.8 kg)
