66 UMBILICAL CORD 



d. Color Coding. Both ends of the air supply hose shall be color coded to distinguish 

 the air supply hose from the gas supply hose. The connection on Sealab shall also be color 

 coded. 



UMBILICAL CONNECTIONS ON SEALAB 



Power and Communication 



The cable connections for power and communication shall be as specified in the Electrical 

 System and Communication System Specifications. 



Gas Sampling and Gas and Air Supply 



A quick -connecting coupling type fitting shall be installed on each Sealab gas line. Each 

 coupling shall mate with its respective hose nipple in the umbilical cord. Plugs shall be pro- 

 vided and secured to the gas lines with chain. The plugs should be of the same material as the 

 coupling; however, aluminum may be used with corrosion-resistant steel fittings. 



UMBILICAL CONNECTIONS ON SUPPORT VESSEL 



Power 



NOTS, Pasadena, will provide and install the mating receptacle and circuit breaker on the 

 support vessel. The receptacle and circuit breaker shall be a Crouse-Hinds Catalog No. 

 DVR75-2042-WT125-3. To insure proper phasing, pin-connection information shall be fur- 

 nished by San Francisco Naval Shipyard (SENS) to NOTS, Pasadena. 



Communications 



A mating receptacle for the communication-cable plug with a water -proof cap and chain 

 shall be furnished to NOTS, Pasadena, for installation on the support vessel. The receptacle, 

 or sufficient details for installation plans, should be furnished to NOTS, Pasadena, as early as 

 possible. SENS shall furnish a pin connection schedule to NOTS, Pasadena. 



Gas Sampling and Gas and Air Supply 



Quick-connecting nipples which mate with the coupling on the respective hoses, or suffi- 

 cient details for the installation plans, shall be furnished to NOTS, Pasadena, for installation on 

 the support vessel as early as possible. The couplings furnished shall be suitable for connect- 

 ing to pipe identical to those in the umbilical. Hose color-code information shall also be pro- 

 vided so that the connections on the support vessel may be coded in the same manner. 



NOTE: Hansen Manufacturing Company hose fittings. Series 2-HK and 6-HK as applicable, 

 may be used in lieu of Roylyn type specified. 



