MIL-R-81158 Rear Cover Assembled Unit \(For Torpedo Mark 37 Mods O And 1\)This specification establishes the requirements for the procurement of a Rear Cover Assembled Unit, Bureau of Naval Weapons LD 620122, which provides the necessary connectors to adapt the acoustic panel to the wiring in the torpedo cabling.

Pages 1 - 2 - 3 - 4 - 5 - 6 - 7 - 8 - 9 - 10

MIL-R-81158A(WP)

3.4.1.1 Continuity shall exist between each pin of J801 and the cor-

responding pin or pins of P801, as depicted on BUWEPS Dwg 1576603.

3.4,1.2 Continuity shall exist between each pin of J802 and the cor-

responding pin or pins of P802, as depicted on BUWEPS Dwg 1576603.

3.4.1.3 Continuity shall exist between each pin of J803 and the cor-

responding pin or pins of P803, as depicted on BUWEPS Dwg 1576603.

3.4.1.4 Continuity shall exist between each pin of J804 and the cor-

responding pin or pins of P804, as depicted on BUWEPS Dwg 1576603.

3.4.2 Dielectric. The rear cover shall withstand the specified poten-

tials without breakdown, puncturing of insulation, or arcing when tested

as specified in 4.4.4.2.

3.4.2.1 The dielectric withstanding voltage for connector 801 shall

be 1000 volts rms at 60 cps for one minute, applied between each pin

and all other pins and the connector shell, except for pin M. The dielec-

tric withstanding voltage for pin M shall be 2400 volts rms at 60 cps for

one minute applied between pin M and all other pins and the connector

shell.

3.4.2.2 The dielectric withstanding voltage for connector 802 shall

be 1000 volts rms at 60 cps for one minute applied between each pin and

all other pins and the connector shell.

3.4.2.3 The dielectric withstanding voltage for connector 803 shall

be 1000 volts rms at 60 cps for one minute applied between each pin and

all other pins and the connector shell.

3.4.2.4 The dielectric withstanding voltage for connector 804 shall be

1000 volts rms at 60 cps for one minute applied between each pin and all

other pins and the connector shell.

3.4.3 Insulation resistance. The rear cover shall meet the minimum

insulation resistance requirements when tested as specified in 4.4.4.3.

3.4.3.1 With an applied voltage of 500 volts dc the insulation resist-

ance shall be 30 megohms between each wire and all other wires and the

connector shell. This test is to be performed on all connectors.

3.4.4 Direct current resistance. The rear cover shall meet the mini-

mum direct-current resistance requirements when tested as specified in

4.4.4.4.