NDT Circular Underwater Electric Connector
Details：
1. Use
YW series underwater electric connector conforms to GJB970-90 standard. Central used for communications systems of diving equipment and ships. They also apply to the electrical connections of oil exploration on the sea, underwater equipments and cables of ship series, and underwater cables.
2. Structure features
The serious products adopt seawater-resistant materials, full sealing structure, thread coupling, cable removing convenient, reliable contact.
3. Connection and separation
When connected, aim the keyway on the plug to the key on the receptacle first, and then insert the plug into the receptacle. Rotating to the noted place or retreat to the thread until you cannot pinch any more, that is connecting rightly. When separation, rotate the lock counter-clockwise until connector cap and receptacle deviate, homeopathy pull out plugs then separation can be carried out.
4. conditions of use environment:
Relative temperature : -55~+125℃
Water work : not more than 50 m
Sine Vibration : 10~2000Hz
Collision : Acceleration 392m/s2
5. Main technical indicators
(1)Current work and the contact resistance
|
(mm) |
Contact with the rear of the matching pair of wire connecting the core diameter line |
(A) |
(MΩ) |
|
φ0.8 |
φ1 |
2 |
≤12.5 |
|
φ1 |
φ1.5 |
5 |
≤5 |
|
φ1.5 |
φ2 |
10 |
≤3 |
|
φ2.5 |
φ2.8 |
25 |
≤2 |
(2) Insulation Resistance
|
|
Under standard atmospheric conditions |
|
High-temperature conditions |
|
YW-3 |
5000MΩ |
50MΩ |
500MΩ |
|
YW-4 |
|
YW-5 |
|
YW-7 |
1000MΩ |
20MΩ |
200MΩ |
(3)Dielectric withstand voltage (50Hz AC RMS)
|
|
Under standard atmospheric conditions |
|
Under the conditions of low pressure |
|
YW-3 |
AC 1500V |
500V |
200V |
|
YW-4 |
|
YW-5 |
|
YW-7 |
800V |
150V |
150V |
Sealing : not less than 2940KPa
Mechanical life : 1000
7. Series-spectrum
Spectrum (from the pin insulators can docking End)
Note : Each graphic following text : Contacts number-contact diameter.
Cases 3-Φ1.5 said this type of spectrum for three Contacts, a diameter of the contact with Φ1.5.
8. Installation and use
8.1 flange installation
8.1.1 flange installation shown in the figure, the shape of the socket and install the following table size
8.2.2 installation methods and procedures
Open the caudal accessories from the plug and the caudal nut (as shown in the figure) to let the cable penetrate from the hole of the caudal accessories, strip and solder the wires-connect with the caudal of the plug and tight plywood or wire-protecting cover. Its main process and steps are show with the following three illustrations.
