What should the diver's umbilical length be in relation to the standby diver umbilical?

The umbilical length for the standby diver should be at least the same length as the diver's umbilical to ensure effective emergency response and support during a dive operation. This length allows the standby diver to have full access to the diver who is in the water, facilitating immediate assistance if needed.

Having the same umbilical length ensures that the standby diver can swiftly reach the diver and provide necessary support, such as in the case of a decompression emergency or if the primary diver requires help with equipment malfunction or other issues while underwater.

In situations where the umbilical is shorter, the standby diver may find it challenging to reach the primary diver, potentially leading to increased risk during emergency situations. Conversely, having an umbilical length that is excessively longer than the primary diver's umbilical could introduce complications and risks related to entanglement or operational effectiveness. Thus, maintaining the umbilical length at least equal to that of the diver ensures safety and readiness in emergency scenarios.