SAE J 554-1987 Electric Fuses (Cartridge Type).pdf

1、SAE Technical Standards Board Rules provide that: “This report is published by SAE to advance the state of technical and engineering sciences. The use of this report is entirelyvoluntary, and its applicability and suitability for any particular use, including any patent infringement arising therefro

2、m, is the sole responsibility of the user.”SAE reviews each technical report at least every five years at which time it may be reaffirmed, revised, or cancelled. SAE invites your written comments and suggestions.QUESTIONS REGARDING THIS DOCUMENT: (724) 772-8512 FAX: (724) 776-0243TO PLACE A DOCUMENT

3、 ORDER; (724) 776-4970 FAX: (724) 776-0790SAE WEB ADDRESS http:/www.sae.orgCopyright 1987 Society of Automotive Engineers, Inc.All rights reserved. Printed in U.S.A.SURFACEVEHICLE400 Commonwealth Drive, Warrendale, PA 15096-0001STANDARDSubmitted for recognition as an American National StandardJ554RE

4、V.AUG87Issued 1914-01Revised 1987-08Supersedes J554bELECTRIC FUSES (CARTRIDGE TYPE)ForewordThis Document has also changed to comply with the new SAE Technical Standards Board Format.References were added as Section 2. All other section numbers have changed.1. ScopeThe fuses shown are for use in moto

5、r vehicles, boats, and trailers to protect electrical wiring andequipment. This standard is for the construction shown and is not intended to restrict the design and use ofother configurations and materials capable of meeting the vehicle requirements.2. ReferencesThere are no referenced publications

6、 specified herein3. DefinitionA fuse is a device designed to open the electric circuit when subjected to overcurrents that coulddamage the circuit or equipment. This action is to be nonreversible, and the fuse is intended to be replacedafter the circuit malfunction has been corrected.4. MaterialsThe

7、 fuses shown shall have clear glass tubes. End caps shall be of brass, copper, or other copperalloy and shall be plated with nickel or other suitable material having satisfactory electrical and corrosionprotective properties.5. ConstructionFuse caps shall be tightly attached to the glass tube and th

8、e ends shall be square and free ofsolder externally. Fuse elements shall be clearly visible through the glass tube. Fuses shall be capable ofbeing passed through a tubular gage having a length as long as the fuse and having a uniform inside diameterof 0.2580.259 in (6.556.60 mm). Preferred and other

9、 fuse dimensions are shown in Figure 1.FIGURE 1FUSE DIMENSIONSSAE J554 Revised AUG87-2-6. Application6.1 GeneralThis standard applies to fuses of all lengths. However, the fuse derating chart shown in Figure 2applies specifically to the preferred length of 1.250 in (31.8 mm). The fuse manufacturer s

10、hould be contactedfor recommendations on other available lengths. (See Figure 1.)FIGURE 2FUSE DERATING FOR VARIOUS WIRE SIZES(1.250 IN (31.8 MM) LENGTH)6.2 Ampere RatingThis standard covers ampere ratings up to and including 30 A. Preferred ampere ratings areshown in Table 1. These ratings are deter

11、mined at 75F (24C) ambient temperature. Approximate capacitychange with respect to temperature is shown in Figure 3 for all length fuses. The use of fuses in ambienttemperatures beyond the limits shown is not recommended without thorough testing experimentally in thevehicle. It is further recommende

12、d that fuses not be loaded to 100% of the adjusted capacity, according toambient temperature, due to electrical system variances. See Figure 2 for additional deratings when fuses areused on cable gage sizes other than the test gage wire.TABLE 1FUSE COLOR CODESAmpere Rating Color Ampere Rating Color1

13、 Dark green 9 Orange2 Gray 10 Red2-1/2 Purple 14 Black3 Violet 15 Light blue4 Pink 20 Yellow5 Tan 25 White6 Gold 30 Light green7-1/2 BrownSAE J554 Revised AUG87-3-FIGURE 3EFFECT OF AMBIENT TEMPERATURE ON AMPERE RATINGOF SAE SPECIFICATION FUSES6.3 Voltage RatingFuses shall be capable of interrupting

14、any voltage up to and including 32 VDC.6.4 Maximum Voltage DropThe maximum voltage drop (in millivolts) at rated current across the fuse only, shallbe as shown in Table 2, when measured across the fuse from ferrule to ferrule.7. PerformanceTests shall be conducted within an ambient temperature range

15、 of 75 9 F (24.0 5 C)except for the overcurrent test which is to be conducted at 75 2 F (23.9 1.2 C).7.1 Ampere Rating TestsFuses shall carry 110% of rated current continuously for 4 h, shall open at 135% ofrated current in less than 1 h, and shall open at 200% of rated current in less than 10 s.7.2

16、 Cycling TestFuses shall perform satisfactorily for a 50 000 cycle load test. Each cycle shall consist ofapplying 70% of the rated current carrying capacity for 10 s followed by a 10 s interval of no applied current.TABLE 2MAXIMUM VOLTAGE DROP OF FUSE AT RATED CURRENTAmpere RatingMaximum Voltage Dro

17、p(Millivolts)1 325.02 300.02-1/2 275.03 250.04 235.05 215.06 200.07-1/2 185.09 170.010 165.014 155.015 150.020 135.025 125.030 120.0SAE J554 Revised AUG87-4-7.3 Vibration TestFuses shall perform satisfactorily after undergoing the following tests: Suitably mountedsamples shall be subjected to a simp

18、le harmonic motion having an amplitude of 0.03 in (0.8 mm) travel (0.06 in(1.5 mm) maximum total excursion). The frequency shall be varied uniformly between the limits of 10 and 55Hz. The entire range of 1055 Hz and returning to 10 Hz shall be traversed in approximately 1 min. Thismotion shall be ap

19、plied for a period of 2 h in each of the three mutually perpendicular directions (total of 6 h).7.4 ProcedureThe fuses, with the exceptions noted in the vibration test, shall be mounted horizontally. Whentesting two or more fuses in series, the fuses shall be mounted no less than 6 in (152 mm) apart

20、 and with noless than 24 in (609 mm) of interconnecting cable. All electrical tests shall be made using SAE No. 81 gagecopper wire, and with fuse clip attachment terminals that have a maximum voltage drop of 4 mV per amperewhen measured between points located on the wire 3 in (76 mm) from the attach

21、ment terminals. Thisdetermination shall be made by using a solid copper dummy 0.250 in (6.35 mm) in diameter and 1.250 0.005in (31.75 0.13 mm) long, with suitably plated ferrules, installed in the fuse clips.7.5 MarkingFuses shall be permanently and legibly marked on the end caps with the ampere rat

22、ing and themanufacturers name or trademark. In addition, the ampere rating may be marked on the glass using numeralsthat are 0.1500.200 in (4.05.0 mm) in height, or the fuses may be color coded with a permanent stripearound the interior or exterior of the glass tube. If a color stripe is used, the f

23、use element must still be clearlyvisible through the glass tube. This color coding shall be as shown in Table 1.8. Notes8.1 Marginal IndiciaThe change bar (l) located in the left margin is for the convenience of the user in locatingareas where technical revisions have been made to the previous issue

24、 of the report. An (R) symbol to the leftof the document title indicates a complete revision of the report.PREPARED BY THE SAE CIRCUIT PROTECTION AND SWITCHING DEVICES SUBCOMMITTEE OF THE SAE ELECTRICAL AND ELECTRONIC SYSTEMS TECHNICAL COMMITTEE1. Conductor cross section area to be not less than 14.

25、810 cir mil (7.23 mm2).SAE J554 Revised AUG87RationaleNot applicable.Relationship of SAE Standard to ISO StandardNot applicable.ApplicationThe fuses shown are for use in motor vehicles, boats, and trailers to protect electrical wiring andequipment. This standard is for the construction shown and is

26、not intended to restrict the design and useof other configurations and materials capable of meeting the vehicle requirements.Reference SectionThere are no referenced publications specified herein.Developed by the SAE Circuit Protection and Switching Devices SubcommitteeSponsored by the SAE Electrical and Electronic Systems Technical Committee