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9.10 Stab-plate connectors mating and de-mating
Stab-plate connector mating and de-mating
Stab-plate connector do not have any latching mechanism. The connectors are mated together by
the force of the stab-plate. There is no special operation needed to de-mate the connector, simply
the stab-plate is withdrawn and the connectors separate.
Only the alignment of the key and the maximum misalignment values need to be adhered to, refer
to section 5.1.
Partial disconnection and interrupted connection
Partial disconnection with the contact pin remaining between the primary and secondary diaphragms
is not recommended, as there is a risk of damaging the insulation. If it is necessary to operate the
connectors partially mated, the connectors should be separated by 8.6 – 9.2mm (0.340 - 0.360")
from the nominal, mated, stab distance. In this condition the level of insulation between the contact
pin and socket contact is reduced and the connector is relying on the primary seals within the plug.
There is also an increased risk of insulation break down at voltages above 500V.
Interrupted connection (i.e. Partial mate to full de-mate) can be carried out without any
adverse effect to connectors, as long as the power is off.
9.11 Diver operated connectors mating and de-mating
Diver operated connector mating and de-mating
The clamp ring should be rotated clockwise by hand until tight. The connectors are designed to
remain clamped together with only firm hand tightness on the clamp ring. If a clamping torque is
used, this MUST NOT exceed 20Nm (15 lbf.ft). A 2-3" C-spanner can be used for this operation.
De-mating is simply a reverse of this process.
Diver operated connector maximum misalignment values
These connectors have been designed to self-align during mating. All that is required is to ensure
that the alignment pin on the plug connector is engaged in the alignment groove within the receptacle
connector before screwing the clamp ring up.
Diver operated connector post mating checks
Full engagement of the connectors can be checked through the viewing hole in the clamp ring. If the
connectors are fully mated, then no gap should be visible between the plug and receptacle, refer to
Figure 26
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Document No: IOM-002
Issue Date:
24/09/2020
Revision:
6
Page:
40 of 42
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