DOSSERT CRAB CONNECTOR

    The Dossert crab connector serves the same function as the MICON although it is less versatile. Its main advantage is its initially low cost.

    The Dossert crab connector is available in two types, CBR and CBN, the insulated and uninsulated connector. Both types are made in two sizes; one with all 4/0 stranded cable outlets and the other with all 500 MCM cable outlets.

    This connector consists of a number of tubular cross members firmly bonded to a common bar with each tubular cross member forming a cable outlet on both sides of this bar. It is made entirely of pure copper with an electrical conductivity of 98% I.A.C.S. and is completely hot tin dipped.

    The insulation on type CBR is MYFLEX (refer to Table C.) rubber compound which is fully molded. On the insulation there is applied a neoprene dip coating to improve the resistance of the insulation to oils, alkalis and acids. The molded insulation is tapered on the outlets to facilitate rolling back the covering to make a cable connection. One pair of opposite end outlets are unsealed and are ready for cable insertion. All other outlets are sealed with molded in MYFLEX plugs. To install, the rubber plug is cut off; the insulation on the outlet is rolled back and the cable is then inserted and secured by indenting the tubular outlet with a standard compression press. The insulation is unrolled to the end of the outlet. The connection is then completed by taping the short gap between the outlet and cable insulation.

TABLE C    SPECIFICATION FOR MYFLEX INSULATION

MYFLEX (Compound P-40) is a natural rubber insulating compound used on Dossert crab connectors.

(1.) Rubber Content ------------------ 46% by weight
(2.) Specific Gravity ---------------- 1.35
(3.) Durometer Hardness -------------- 50
(4.)Water absorption after immersion in water at 70F for 24 hours --------------------- .75 - 1%.
(5.)Water absorption in boiling water 80 days ------------------- 5%
(6.)Tensile Strength ---------------- 1300 lbs. per sq. in.
(7.)Elongation at Rupture ----------- 500%
(8.)Residual Elongation after set-17.2%
(9.)Modification of Tensile Strength after 96 hour oxygen bomb test at 158F -------------- 4% Loss
(10.)Average Dielectric Strength ----- 350 volts/mil