Recommended Electrical Safety Practices For Divers

By strict adherence to a few basic electrical safety practices, injury from electrical shock hazards can be avoided.

REMEMBER Electricity sedes the path of least resistance.

electrical tool or device to enter the water first. If an electrical fault exists or occurs, the electrical current will flow through the water and not through the diver's body. The circuit breaker or ground fault detector will trip to notify surface support personnel that a problem exists. After the tool or device is submerged, the diver can grab the equipment.

Divers And Electrical Safety Pics

Never hand a surfaced diver an electrical tool

Figure D-2

Never hand a surfaced diver an electrical tool

Figure D-2

2. Never reach out of the water for handholds on conduits, cables, or anything that might be electrically powered while still partially submerged in the water (Figure D-3. If anelectrical fault exists, deadly electrical currents can flow through the diver's body and into the water. Use a rope or handholds made of wood or other non-conductive material to exit the water or to assist in staying afloat.

Divers must avoid the condition where they become the path of least resistance.

1. Never hand a diver an electrical tool or a device while the diver is at the water surface (Figure D-2). Always allow the

Figure D-3

The greatest living divers never reach for handholds on conduits or anything else that might be electrically loaded

The greatest living divers never reach for handholds on conduits or anything else that might be electrically loaded

Anything Electrical

3. Always connect underwater electrical devices to a ground fault detector and interrupter and not directly to the power source (Figure D-4). The ground fault detector/interrupter (GFI) will monitor the electrical circuit and shut it down if an electrical ground fault occurs. A good practice is to install GFIs on all electrical power sources used in wet locations or if a potential for a ground fault is great, such as in inclement weather. Be sure that the GFI is designed for use with underwater electrical equipment.

6. When possible, survey the dive site for stray electrical fields (Figure D-S). Dangerous electric fields may be present in cathodically protected areas such as a harbor or around a pier. The cathodic protection is a corrosion preventive system that induces electrical currents in the water to protect metal parts in the water. Some systems may develop underwater electric fields that can cause dangerous electrical currents to flow through a diver who inadvertendy dives or swims into the field. Ensure such systems are shut down before and during a dive. An electric field detector can be used to monitor electric fields in die water and provide an alarm if dangerous fields exist.

4. Never bypass any circuit protective device, and always use the correct rated protective devices. The circuit protective devices are installed to protect the electrical equipment from an overload that can damage insulation and create an electrical shock hazard. If the protective device continues to trip the circuit, a condition exists that must be investigated and corrected.

5. When possible, use electrical tools or equipment that use inherently safe voltage and current levels. For example, 12-volt battery packs are inherendy safe because the voltage cannot generate harmfid electrical currents to a diver. The AODC Code of Practice for the Safe Use of Electricity Underwater (Ref D-l) presents safe voltage levels for various types of electrical equipment. An underwater flashlight powered by a 6-volt lantern battery is an example of inherendy safe electrical equipment.

Figure D-5

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  • gebre
    What are the safety divers in electric circuit?
    5 years ago
  • Cornelia
    Is they diver in electrical?
    3 years ago

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