1、Comments, suggestions, or questions on this document should be addressed to: Commander, Naval Sea Systems Command, ATTN: SEA 05Q, 1333 Isaac Hull Avenue, SE, Stop 5160, Washington Navy Yard DC 20376-5160 or emailed to CommandStandardsnavy.mil, with the subject line “Document Comment”. Since contact
2、information can change, you may want to verify the currency of this address information using the ASSIST Online database at http:/assist.daps.dla.mil. AMSC N/A FSC 5920METRIC MIL-PRF-32167A 16 May 2006 SUPERSEDING MIL-PRF-32167 29 July 2004 PERFORMANCE SPECIFICATION TRANSIENT VOLTAGE SURGE SUPPRESSO
3、R (TVSS) This specification is approved for use by all Departments and Agencies of the Department of Defense 1. SCOPE. 1.1 Scope. This performance specification covers the requirements for a transient voltage surge suppressor (TVSS) device used to provide protection from electrical system transients
4、 for electrical equipment installed aboard U.S. Navy vessels and land-based Navy electrical distribution systems. 2. APPLICABLE DOCUMENTS 2.1 General. The documents listed in this section are specified in sections 3, 4, or 5 of this specification. This section does not include documents cited in oth
5、er sections of this specification or recommended for additional information or as examples. While every effort has been made to ensure the completeness of this list, document users are cautioned that they must meet all specified requirements of documents cited in sections 3, 4, or 5 of this specific
6、ation, whether or not they are listed. 2.2 Government documents. 2.2.1 Specifications, standards, and handbooks. The following specifications, standards, and handbooks form a part of this document to the extent specified herein. Unless otherwise specified, the issues of these documents are those cit
7、ed in the solicitation or contract. FEDERAL STANDARDS FED-STD-595/26307 - Gray, Semigloss DEPARTMENT OF DEFENSE SPECIFICATIONS MIL-S-901 - Shock Tests, H.I. (High-Impact) Shipboard Machinery, Equipment, and Systems, Requirements for MIL-E-917 - Electric Power Equipment Basic Requirements MIL-DTL-150
8、90 - Enamel, Equipment, Light Gray, (Navy Formula No. 111) MIL-DTL-24643 Cables and Cords, Electric, Low Smoke, for Shipboard Use, General Specification for MIL-DTL-24643/17 Cable, Electrical, 1000 Volts, Type LSFSGU Provided by IHSNot for ResaleNo reproduction or networking permitted without licens
9、e from IHS-,-,-MIL-PRF-32167A 2 DEPARTMENT OF DEFENSE STANDARDS MIL-STD-167-1 - Mechanical Vibrations of Shipboard Equipment (Type I - Environmental and Type II - Internally Excited) MIL-STD-810 - Environmental Engineering Considerations and Laboratory Tests MIL-STD-1310 - Standard Practice for Ship
10、board Bonding, Grounding, and Other Techniques for Electromagnetic Compatibility and Safety MIL-STD-1399-300 - Interface Standard for Shipboard Systems, Section 300, Electric Power, Alternating Current (Metric) DOD-STD-1399-301 - Interface Standard for Shipboard Systems, Section 301, Ship Motion and
11、 Attitude (Metric) (Copies of these documents are available online at http:/assist.daps.dla.mil/quicksearch/ or http:/assist.daps.dla.mil or from the Standardization Document Order Desk, 700 Robbins Avenue, Bldg. 4D, Philadelphia, PA 19111-5094.) 2.3 Non-Government publications. The following docume
12、nts form a part of this document to the extent specified herein. Unless otherwise specified, the issues of these documents are those cited in the solicitation or contract. ASTM INTERNATIONAL ASTM F1507 - Standard Specification for Surge Suppressors for Shipboard Use (Copies of this document are avai
13、lable from ASTM International, 100 Barr Harbor Dr., PO Box C700, West Conshohocken, PA 19428-2959 or online at www.astm.org.) INSTITUTE OF ELECTRICAL AND ELECTRONICS ENGINEERS (IEEE) IEEE 45 - IEEE Recommended Practice for Electric Installations on Shipboard (DoD adopted) IEEE C62.41.1 - IEEE Guide
14、on the Surge Environment in Low-Voltage (1000 V and less) AC Power Circuits IEEE C62.41.2 - IEEE Recommended Practice on Characterization of Surges in Low-Voltage (1000 V and less) AC Power Circuits IEEE C62.45 - IEEE Recommended Practice on Surge Testing for Equipment Connected to Low-Voltage (1000
15、V and Less) AC Power Circuits (Copies of these documents are available from the Institute of Electrical and Electronics Engineers, Inc., 445 Hoes Lane, PO Box 1331, Piscataway, NJ 08855-1331 or online at www.ieee.org.) NATIONAL ELECTRICAL MANUFACTURERS ASSOCIATION NEMA 250 - Enclosures for Electrica
16、l Equipment (1000 Volts Maximum) (DoD adopted) NEMA LS-1 - Low Voltage Surge Protective Devices (Copies of these documents are available from the National Electrical Manufacturers Association, 1300 North 17thStreet, Suite 1847, Rosslyn, VA 22209 or online at www.nema.org.) Provided by IHSNot for Res
17、aleNo reproduction or networking permitted without license from IHS-,-,-MIL-PRF-32167A 3 UNDERWRITERS LABORATORIES, INC. (UL) UL 94 - Tests for Flammability of Plastic Materials for Parts in Devices and Appliances (DoD adopted) UL 1449 - Transient Voltage Surge Suppressors (DoD adopted) (Copies of t
18、hese documents are available from COMM 2000, 1414 Brook Drive, Downers Grove, IL 60515 or online at .) 2.4 Order of precedence. In the event of a conflict between the text of this document and the references cited herein, the text of this document takes precedence. Nothing in this document, however,
19、 supersedes applicable laws and regulations unless a specific exemption has been obtained. 3. REQUIREMENTS 3.1 First article. When specified (see 6.2), a TVSS device shall be subjected to first article inspection in accordance with 4.2. 3.2 Description. A TVSS device described in this specification
20、is an electronic device for low voltage (150 Vrms 150 Vrms 150 Vrms 150 Vrms 150 Vrms 150 Vrms 150 Vrms 200 Vrms 260 Vrms 260 Vrms 260 Vrms 260 Vrms 260 Vrms 260 Vrms 260 Vrms 440 Vrms 550 Vrms 550 Vrms 550 Vrms 550 Vrms 550 Vrms 550 Vrms 550 Vrms 3.3.4 Minimum peak current per mode. The minimum pea
21、k current per mode of the TVSS device shall be 40,000 A or greater with a 8 x 20 microsecond waveshape. The protected modes shall consist of all line-to-line, line-to-ground, line-to-neutral, and neutral-to-ground configurations. The phases are identified as A, B, and C. For a delta configuration, t
22、he modes are defined as AB, AG, BC, BG, CA, and CG. For a wye configuration, the modes are defined as AB, AG, AN, BC, BG, BN, CA, CG, CN, and NG. Verification that the minimum peak current per mode of the TVSS device is met shall be provided as specified (see 6.2). 3.3.5 Suppressed voltage ratings (
23、SVRs). The maximum SVRs shall be as shown in Table II from L-L, L-N, and L-G at the system voltage for delta and wye systems. Testing shall be performed as in 4.5.12 with results consistent with UL 1449 SVRs per UL 1449 product test report. When specified (see 6.2), a copy of the UL 1449 test report
24、 shall be provided. TABLE II. Maximum allowable UL 1449 suppressed voltage ratings. System voltage Single-phase device 3-phase delta device 3-phase wye device L-L L-L L-G L-L L-G L-L L-N L-G 115 Vrms 500 V 500 V 500 V 500 V 500 V 500 V 500 V 200 Vrms 900 V 900 V 900 V 900 V 900 V 900 V 900 V 440 Vrm
25、s 1500 V 1500 V 1500 V 1500 V 1500 V 1500 V 1500 V 3.3.6 Maximum let-through voltage ratings. The maximum let-through voltage ratings shall be as shown in Table III from line-to-line (L-L), line-to-neutral (L-N), and line-to-ground (L-G) at the system voltage for delta and wye systems. Testing shall
26、 be performed as in 4.5.5 with results consistent with Table III. TABLE III. Maximum allowable let-through voltages. System voltage Single-phase device 3-phase delta device 3-phase wye device L-L L-L L-G L-L L-G L-L L-N L-G 115 Vrms 675 V 675 V 675 V 675 V 675 V 675 V 675 V 200 Vrms 900 V 900 V 900
27、V 900 V 900 V 900 V 900 V 440 Vrms 1750 V 1750 V 1750 V 1750 V 1750 V 1750 V 1750 V 3.3.7 Input power frequency. The TVSS device shall be fully operational at the system frequencies of 60 and 400 Hz. This shall be verified by the requirements of 4.5.4. 3.3.8 Protected modes. Modes as defined in 3.3.
28、4 shall be protected using directly connected suppression circuit elements. For a wye configured TVSS device, the elements shall be connected across L-L, L-N, L-G, and N-G modes. For a delta-configured TVSS device, the elements shall be connected across L-L and L-G modes. Provided by IHSNot for Resa
29、leNo reproduction or networking permitted without license from IHS-,-,-MIL-PRF-32167A 5 3.3.9 Circuit protection. Each line connection from the distribution system phase conductor to the TVSS device shall be fused and properly coordinated to disconnect the TVSS device from the distribution system in
30、 the event of a TVSS failure. Individual fuses, such as VSP-type surge suppressor protection fuses, one per phase, internal to the TVSS enclosure, shall be sized to protect the feeder cable. Appropriate feeder cable such LSFSGU-9, specified in MIL-DTL-24643 and MIL-DTL-24643/17, not to exceed 18 inc
31、hes in length, shall be used. The cable can then be sized as short as is practical for the installation. 3.3.10 Status indication. The TVSS device shall provide a visual indication of fuse status per phase. When power is applied and the fuse is closed, the indication shall be lit; if the fuse opens,
32、 the indication shall extinguish. 3.3.11 Grounding. The TVSS device enclosure shall provide a connection point to facilitate equipment grounding in accordance with MIL-STD-1310. 3.3.12 UL 1449 certification. The TVSS device shall be UL 1449 listed as having undergone UL 1449 performance tests (inclu
33、ding SVR testing) for UL 1449 certification. Verification of this requirement shall be provided as specified (see 6.2). 3.3.13 Life-cycle. The TVSS device shall be able to withstand 2500 each L-L and 2500 each L-G 1.2 x 50 ms waveshape at 1 kV magnitude for 115 Vrms devices and 2.5 kV for 440 Vrms d
34、evices per MIL-STD-1399-300 at a frequency of 2 impulses per minute. The TVSS device shall withstand such testing with zero failures and less than 10 percent degradation of let-through voltage parameter. 3.4 Mechanical characteristics. 3.4.1 Enclosure requirements. The TVSS device components shall b
35、e mounted in a NEMA 4-hinged enclosure with a seamless weld in accordance with NEMA 250, unless otherwise specified. The mounting shall meet the requirements of IEEE 45 The overall size of the enclosure shall be minimized to meet application requirements. When specified (see 6.2), non-magnetic enclo
36、sures are required for minesweeper ships. 3.4.2 Component mounting. No components other than indicator lights shall be mounted external to the enclosure. 3.4.3 Dimensions and weight. The maximum dimensions for the enclosure shall be 30 cm (12 in) in height by 30 cm (12 in) in width by 30 cm (12 in)
37、in depth, inclusive of all mounting hardware. The TVSS device shall weigh less than 18.144 kg (40 lbs). 3.4.4 Painting. The TVSS device enclosure shall be painted using Navy formula no. 111 in accordance with MIL-DTL-15090. The color shall be no. 26307 in accordance with FED-STD-595. 3.4.5 Recycled,
38、 recovered, or environmentally preferable materials. Recycled, recovered, or environmentally preferable materials should be used to the maximum extent possible provided that the material meets or exceeds the operational and maintenance requirements, and promotes economically advantageous life cycle
39、costs. 3.4.6 Identification plates. The TVSS device shall be identified with a label plate that shall include the following information: a. Manufacturers name, address, and phone number b. Model and serial number c. Nominal operating voltage and frequency d. Maximum continuous operating voltage e. M
40、aximum surge current in kA for an 8/20 microsecond waveshape f. Intended power system configuration g. Underwriters Laboratories listing data h. Installation instructions i. Warranty information It is understood that more than one label may be utilized to provide all information specified above. Pro
41、vided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-PRF-32167A 6 3.4.7 Encapsulant. Any epoxy or encapsulant shall meet the requirements of UL 94 for reduced flammability. Additionally, the Hazardous Materials Indication System (HMIS) value of the cured
42、 encapsulant shall be zero. 3.5 Environmental conditions. 3.5.1 Location. The TVSS device shall be installed in a sheltered location aboard the ship; as such, the device will be protected from the external environment. The sheltered environment may be either controlled or uncontrolled. 3.5.2 Ambient
43、 temperature. The TVSS device shall withstand storage temperatures of -25 to 70 C (-13 to 158 F) and ambient operating temperatures of -25 to 70 C (-13 to 158 F) without any derating of the device. 3.5.3 Relative humidity. The TVSS device shall operate in a relative humidity of 0 to 100 percent (non
44、-condensing). 3.5.4 Corrosion. The TVSS device shall be corrosion-resistant in the marine environment in accordance with NEMA 250. 3.5.5 Inclination. The TVSS device shall operate at any inclination. 3.5.6 Ship motion and attitude. The TVSS device shall be fully operational for the ship motion and a
45、ttitude conditions set forth in DOD-STD-1399-301. 3.5.7 Shock. The TVSS device shall be classified as Grade A, Class I, Type A in accordance with MIL-S-901. It shall withstand the shock loads as specified in MIL-S-901. Resilient shock mounts may be used. The TVSS device shall fail the shock testing
46、if any of the following occur: a. A portion of the device or enclosure breaks or causes a hazard to personnel. b. Wire connections, terminal strips, and other device components crack or become dislodged. c. Any part breaks or cracks that affects device function. d. There is appreciable distortion of
47、 any parts, including enclosure and framework. e. The device fails to pass visual examination. f. The device fails to pass insulation resistance tests. 3.5.8 Vibration. The TVSS device shall be in accordance with the Type I vibration requirements of MIL-STD-167-1. It shall withstand the vibration te
48、sting as specified in MIL-STD-167-1. Resilient vibration mounts may be used. The TVSS device shall fail the vibration testing if any of the following occur: a. A portion of the device or enclosure breaks or causes a hazard to personnel. b. Wire connections, terminal strips, and other device componen
49、ts crack or become dislodged. c. Any part breaks or cracks that affects device function. d. There is appreciable distortion of any parts, including enclosure and framework. e. The device fails to pass visual examination. f. The device fails to pass insulation resistance tests. 3.6 Operation. 3.6.1 Duty cycle. The duty cycle of the TVSS device shall be continuous operation. 3.7 Maintenance. The TVSS device shall require no preventive maintenance. 3.8 Performance
