EIA-364-39B-1999

STANDARD

EIA-364-39BTP-39B

Hydrostatic Test Procedure for

Electrical Connectors, Contacts andSocketsEIA-364-39B

(Revision of EIA-364-39A)AUGUST 1999

ELECTRONIC INDUSTRIES ALLIANCE

Electronic Components, Assemblies, Equipment & SuppliesAssociation

NOTICE

EIA Engineering Standards and Publications are designed to serve the public interest througheliminating misunderstandings between manufacturers and purchasers, facilitatinginterchangeability and improvement of products, and assisting the purchaser in selecting andobtaining with minimum delay the proper product for his particular need. Existence of suchStandards and Publications shall not in any respect preclude any member or nonmember of EIAfrom manufacturing or selling products not conforming to such Standards and Publications, norshall the existence of such Standards and Publications preclude their voluntary use by those otherthan EIA members, whether the standard is to be used either domestically or internationally.Standards and Publications are adopted by EIA in accordance with the American NationalStandards Institute (ANSI) patent policy. By such action, EIA does not assume any liability toany patent owner, nor does it assume any obligation whatever to parties adopting the Standard orPublication.

This EIA Standard is considered to have International Standardization implication, but theInternational Electrotechnical Commission activity has not progressed to the point where a validcomparison between the EIA Standard and the IEC document can be made.

This Standard does not purport to address all safety problems associated with its use or allapplicable regulatory requirements. It is the responsibility of the user of this Standard to establishappropriate safety and health practices and to determine the applicability of regulatory limitationsbefore its use.

(From Standards Proposal Number 4307, formulated under the cognizance of the CE-2.0 NationalConnector Standards Committee.)

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©ELECTRONIC INDUSTRIES ALLIANCE 1999

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CONTENTS

Clause1Introduction ..........................................................................................................1.1Scope ...................................................................................................................2Test resources ......................................................................................................2.1Equipment ............................................................................................................2.2Material ................................................................................................................3Test specimen .......................................................................................................3.1Description ...........................................................................................................3.2Preparation ...........................................................................................................4Test procedure ......................................................................................................4.1Hydrostatic pressure, static ...................................................................................4.2Hydrostatic pressure, cyclic ..................................................................................4.3Examination (control tests) ...................................................................................4.4Failures..................................................................................................................5Details to be specified ...........................................................................................6Test documentation ..............................................................................................

Table1Hydrostatic pressure test increments (static) .........................................................2Time at maximum pressure ...................................................................................

Figure1Hydrostatic test vessel ..........................................................................................2

Typical connector tests .........................................................................................

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EIA-364-39B

Page 1

TEST PROCEDURE No. 39B

HYDROSTATIC TEST PROCEDURE

FOR

ELECTRICAL CONNECTORS, CONTACTS AND SOCKETS

(From EIA Standards Proposal No. 4307, formulated under the cognizance EIA CE-2.0Committee on National Connector Standards, and previously published in EIA-364-39A.)1 Introduction1.1 Scope

This standard establishes a test method to assess the ability of unmated receptacles and wiredmated harness to withstand hydrostatic pressures that are encountered in the underseaenvironment.2 Test resources2.1 Equipment

The test equipment shall consist of a hydrostatic pressure test vessel fabricated in accordance withthe ASME Pressure Vessel Code. The pressure vessel shall be designed to suit the hydrostaticpressure range of the connector or receptacle to be tested. The vessel shall be equipped with asuitable pump to permit pressurization of the vessel to its required pressure conditions inaccordance with 4.2 and table 1. The pressure gage connected to the vessel shall be accuratewithin plus or minus one percent. The vessel shall include a cover designed for mounting andsealing test flanges to the cover; see figure 1.2.2 Material

Test media shall be tap water, unless otherwise specified. When a union connector is tested (seefigure 2) a dielectric oil shall be located above the water in the pressure vessel to completelyimmerse the bulkhead connector in oil and the union connector in the water.

EIA-364-39BPage 2

Figure 1 - Hydrostatic test vessel

EIA-364-39B

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Figure 2 - Typical connector tests

EIA-364-39BPage 4

3 Test specimen3.1 Description

A test specimen shall consist of the following:3.1.1 An unmated receptacle.

3.1.2 A mated bulkhead connector, or a mated union connector; see figure 2.3.1.3 A protective cover.3.2 Preparation

Three types of hydrostatic pressure tests shall be conducted in this test procedure; an unmatedreceptacle, a mated connector, and a protective cover test. Specimens shall be tested under thespecified electrical power with all contacts in connector, or ends of cables or wires connected.Instrumentation may be connected to the test specimen via the pressure vessel for electricalperformance monitoring.3.2.1 Unmated receptacle

The unmated receptacle shall be mounted to the vessel cover flange using sealing and fasteningmethods as specified in the referencing document. The face of the web section of the receptacleshall be exposed to pressure while this area is completely filled with water.3.2.2 Mated connector

The bulkhead type connector or a union type connector shall be assembled using the wire or cabletype, length, size and sealing methods as specified in the referencing document.3.2.3 Protective cover

The test connector shall be installed in the vessel so that the pressure can be applied safely to thecover. The back of the connector shall be suitably protected. Precaution should be taken toassure maximum safety when pressure is applied in various tests.

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4 Test procedure

4.1 Hydrostatic pressure, static

The test specimen shall be subjected to the specified test condition of table 1. The test specimenshall be subjected to the maximum pressure of each applicable increment for 5 minutes ±30 seconds at standard ambient conditions, unless otherwise specified in the referencingdocument.

Table 1 - Hydrostatic pressure test increments (static)Test conditionPressure increments ± 1 percent

ABCDkPalbf /in2Increments

11110 - 1380 - 202222138 - 1,72420 - 25033331,724 - 3,447250 - 50044443,447 - 6,895500 - 1,000

5556,895 - 10,3421,000 - 1,50066610,342 - 13,7901,500 - 2,00077713,790 - 17,2372,000 - 2,500

8817,237 - 20,6842,500 - 3,0009920,684 - 24,1323,000 - 3,500101024,132 - 27,5793,500 - 4,000111127,579 - 34,4744,000 - 5,000121234,474 - 41,3695,000 - 6,000131341,369 - 48,2636,000 - 7,000141448,263 - 55,1587,000 - 8,000

1555,158 - 62,0538,000 - 9,0001662,053 - 68,9489,000 - 10,0001768,948 - 75,84210,000 - 11,0001875,842 - 82,73711,000 - 12,0001982,737 - 89,63212,000 - 13,0002089,632 - 96,52713,000 - 14,0002196,527 - 103,42114,000 - 15,00022103,421 - 110,31615,000 - 16,000

2NOTE — For the purpose of this test 0 Kpa (0 lbf/in) is considered room ambient pressure.

EIA-364-39BPage 6

4.2 Hydrostatic pressure, cycling

When specified, the connector shall be subjected to a cyclic pressure test following the staticpressure test. The specimen shall be subjected to the following cycling from room ambientpressure to the maximum pressure of the test condition as indicated in table 2.

Table 2 - Time at maximum pressure

Number of cyclesTime at maximum pressure

25Momentary1,0005 minutes ± 30 seconds

124 hours ± 30 minutes

Procedure

123

4.3 Examination (control tests)

Control tests such as continuity and insulation resistance shall be as specified.4.4 Failures

Potential modes of failure resulting from this test include:4.4.1 Permanent dimensional changes.

4.4.2 Cracking and crazing of insulation material.4.4.3 Permanent damage to cable sealing compounds.

4.4.4 Water absorption by insulation materials and leakage through these materials.

4.4.5 Leakage of receptacle-to-bulkhead seals; plug-to-receptacle seals; and cable-to-plug seals.4.4.6 Displacement or rupture of connector shells, inserts, contacts, wire, or sealing compounds.4.4.7 Changes in electrical characteristics (adverse).5 Details to be specified

The following details shall be specified in the referencing document:5.1 Test medium, if other than tap water; see 2.25.2 Electrical power to be applied; see 3.2

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5.3 Mated or unmated condition of test connectors; see 3.2

5.4 Connector wire or cable type, length and size, and sealing methods; see 3.25.5 Receptacle seal mounting and fastening method; see 3.2.15.6 Special precautions, if applicable; see 3.2.3

5.7 Initial measurements and conditions, if other than room ambient; see 4.15.8 Test condition letter; see 4.15.9 Test procedure number; see 4.26 Test documentation

Documentation shall contain the details specified in clause 5, with any exceptions, and thefollowing:6.1 Title of test

6.2 Specimen description including fixture, if applicable6.3 Test equipment used, and date of last and next calibration6.4 Test method, condition, and procedure, as applicable6.5 Values and observations.

6.5.1 Initial and final ambient conditions6.5.2 Circuit diagram, if used for control tests6.5.3 Insulation resistance readings, if applicable

6.5.4 Observations of permanent or temporary dimensional changes; insulation, connector shell,contact, wire (or cable) seal, or insert damage6.6 Name of operator and date of test

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