Check these items according to the on-site safety plan, and check to ensure that all equipment operates in an orderly manner before starting work.
①Personal safety list
(1) Work together (don’t work alone!).
(2) To understand various safety measures, equipment and emergency procedures.
(3) Safety checklist.
(4) Safety helmet.
(5) Eye protection device.
(6) Dry leather gloves for electrical work.
(7) Rubber gloves, aprons and insulating tools related to battery operation.
(8) If you work on the roof or other elevated locations, you must have a suitable safety belt.
(9) Appropriate measuring equipment: electrical and latitude.
(10) Tape and wire nuts (to avoid exposed wires).
②Work site safety list
(1) Safety plan.
(2) Emergency rescue package.
(3) Fire extinguisher.
(4) Distilled water.
(5) Carbonate.
(6) Appropriate climbing ladders.
(7) Suitable lifting equipment.
(8) Appropriate labels should be placed on all equipment and cables.
Sometimes, safety equipment standards involve items that workers are prohibited from wearing. Remove all jewelry or metal objects that may come into contact with electrical components!
③On-site safety
Sometimes when a remote power plant system is not working properly, it is necessary to carry out on-site error investigation. Safety should be the first concern in the process of making plans, visiting in person, and testing.
Before you leave for the scene, you need to know: Who will assist you? Be sure to work with well-trained peers and teams.
Before starting work on any hybrid power generation system, familiarize yourself with the electrical configuration of the system. Including the type, size and number of generators in the system, system voltage and expected current, how many lines there are, how the system is disconnected, available safety equipment and equipment that needs to be carried.
At the remote power system site, the following should be done:
(1) Remove the jewelry.
(2) Walk around the system and record any obvious dangers in the system log or notebook.
(3) Check the actual system configuration according to the electrical schematic diagram.
(4) Locate and check all subsystems, such as batteries and loads.
(5) Determine whether the system is grounded, grounding method and grounding location.
(6) Locate and check all disconnected switches, check the fuses, and determine whether the switches are designed to cut off the positive and negative conductors.
(7) Disconnect the power circuit, measure the open circuit voltage, and confirm the reasonable operation of the disconnect switch.
The test can only be continued under the premise of mastering the circuit.
(1) Keep the work area free of obstacles, especially the area behind you.
(2) Do not disconnect the line before measuring the voltage.
(3) Make sure your hands are dry and wear gloves.
(4) If possible, use one hand to touch the bare wire.
(5) Use circuit blocking devices and blocking procedures to avoid inadvertent reconnection, including safety tags. Where it is not guaranteed, it is necessary to arrange a team member near the disconnect switch.
(6) Once the line is disconnected, do not leave the exposed end, wrap it with tape, or temporarily cover it with a cable connector.
④First aid
If someone is injured or has an accident, first aid can save lives. It is strongly recommended that people working in the electrical industry (including those working in hybrid power generation systems) receive first aid training and ensure that their training is kept up to date. There are many providers of first aid training, and they provide refresher courses for those who wish to continue to hold a certificate. The training usually takes 1 to 2 days, which is very useful in emergency situations.