GB 27881-2011Safety requirements for working on high voltage equipment underwater (English PDF)

3.1 supervise diving or ROV (ROV) Supervision

3.1.1 full operational safety related equipment electrical installations responsible for underwater work site.

3.1.2 should have the ability to give commands to engage in the operations of technical personnel, organization and complete the task.

3.1.3 Ensure that all electrical equipment according to the procedure for implementing the operations have been developed.

Carrying out its mandate, it should be able to control and correct implementation of emergency procedures 3.1.4, to protect the right to terminate the operations of health equipment maintenance personnel

Health and safety.

3.2 Equipment maintenance personnel

3.2.1 should have appropriate professional qualifications, familiar and safe work practices related provisions, and the ability to complete the work.

3.2.2 Electrical installations should be noted, warning notices on the device or program description, familiar treatment protocol when subjected to electric shocks and precautions.

3.2.3 shall be subject to high voltage electrical training courses and first aid techniques, master the basic on-site emergency medical rescue methods, and by the appropriate exam

qualified.

3.2.4 Equipment maintenance personnel should be aware, be familiar with the relevant electrical equipment performance, can handle any situation affecting the normal operation of the device,

ROV and diving supervision or monitoring reports.

3.2.5 operating personnel to operate the equipment, maintenance and testing process, should ensure that according to the use manual, in strict accordance with operating procedures.

4.3 Prior to conduct operations should be carried out risk assessments and ensure.

--- All parties were informed underwater operations to be carried out;

--- The safe operation/copy operations manual to the side of the ship or facility;

--- for the special case of work to make the necessary modifications to the safe operation of writing/Operations Manual.

4.4 In order to avoid a variety of factors make backup emergency generator or accidental activation caused by an accident, the implementation of operations should set the appropriate protective measures.

4.5 During the operation, all personnel should pay attention to the results of the risk assessment, warning notices on the device, and according to the actual need for the precautions

Item or program description.

5.3 should provide adequate lighting to ensure safe access and operation.

5.4 allows the use of low-voltage self-powered hand tools. These devices should be inspected and tested on a regular basis.

5.5 It is noted from moisture, dirt intrusion electrical equipment, the enclosure should be promptly after the reset operation. Front compartment closed, should be carefully examined to ensure that

Items left behind or loose parts does not occur.

5.6 Before maintenance work on high voltage wires, make sure that all the wires are not live. It should be tested before the voltage meter used to verify

Its function well.

5.7 before maintenance, after the test, should be safe discharge.

5.8 All maintenance and modification of equipment, both the format and specifications shall be credited to the equipment maintenance records and save.

6.1 maintenance equipment should always be followed.

a) secure and reliable isolation;

b) an effective ensure uncharged;

c) directly to ground.

6.2 should avoid live maintenance work. When you must live maintenance work (eg. look for equipment failure), should apply for work permits live, and to develop

Specific safety operating procedures. Unrelated persons may not be close to the work area.

6.3 A person in charge of isolation, a maintenance person occasion, is responsible for device isolation should ensure that the device is not charged and safety, and

It has charged again avoid security measures.

6.4 exposure to high-voltage lines should be supervised. Not immediately when the power switch is turned off to perform maintenance work on the device, the switch should be

Next to arrange third party. The third person should be able to keep in touch with people working on high voltage lines.

6.5 should take protective measures to ensure the isolation of the device will not power on, and should be placed written "warning on the power switch. High Voltage

Circuit is working "signs content.

6.6 before and after maintenance should ensure that the equipment is not charged, and grounded. Ground connection and it should have a sufficient work required to adapt

Ability.

6.7 for isolation switches should be locked to prevent it from moving to the "ON" position. Any possible access to live close to the entrance of the conductor should

Locked in the "off" position.

6.8 maintenance to be provided a sufficient number of locking means, and alert notifications isolation barrier to prevent accidental charging lead wires, and any

Charging conductor alert notifications. Meanwhile, should the switch box before, and after setting the identification flag circuit device.

Terminal 6.9 and the return wire when the main circuit is turned off, respond to possible accidental contact shield isolation is provided, and labeled alert notifications. with

When, special attention should avoid the risk of the reverse power from the voltage or current of the transformer secondary circuit.

6.10 to avoid double insertion, or should a fuse tab connection removal, prohibit the use of an isolated manner as a contactor.

6.11 disconnector operating with the locking device, the locking device should be used is specified, not just use the lock release key or destroyed

Locking means.

6.12 should prevent access to the live wire enclosure lock.

6.13 completed maintenance work line should be tested to ensure that after the switch is turned off before the reset, power will not be connected.

6.14 after the test is completed, it should remove the warning notice, notify the relevant personnel.

8.2 extinguishing type apparatus should be compatible with the use of the safety device.

8.3 should be trained personnel and the use of the fire extinguishing apparatus aspects of SOS.

9.2 Warning notices should be durable materials.

Examples of alert notifications about 9.3 as follows.

--- "DO NOT TURN. Some people work on the device";

--- "Danger. high voltage test area";

--- "Warning. high voltage circuits are operating."

END: Draft Version (GB 27881-2011)