Remember the ten principles
Two preparation tasks:
Personal protective equipment and site isolation
5 items that can be observed in the machine room:
Lifting operations, stored mechanical energy, locking and latching, live operations – troubleshooting and short wiring
Three things can be observed in the wellbore:
Construction platform and working platform, fall protection and car roof and bottom pit
1. Whether it is installation or maintenance work, we should check whether the personal protective equipment (PPE) and safety tools are brought together and qualified before the staff go to the work site. Before entering the work site, you should wear your own personal protective equipment (PPE). Thus, the first 10 principles — personal protective equipment (PPE).
2. Personal protective equipment
Next, if the installation site, the general effective WeiDang around the site, the entrance door will write the “construction area, the people from the”, especially in recent years, the construction site practice the “one card” system, which is an effective site isolation, change to our own operation, room door lock, door and warehouse posted notices; Well crossings are set up with guardrail, full coverage with secret net; Lifting when the warning line, and so on, are effective protective measures – site isolation.
Maintenance colleagues understand is also very intuitive, such as room door lock, ladder maintenance maintenance, we should place isolation guardrail and landing warning signs, and so on, these are also effective protective measures – site isolation.
Site isolation
Effective isolation of operating areas
Areas at risk of falling are left when revolving doors, automatic doors, steps, pedals, comb plates or safety trapdoors have not been installed or have been removed. Therefore, the site must be effectively protected and isolated with a guardrail (escalators must be isolated at both ends). When not working, use the safety fence to protect and isolate the equipment.
3. Lifting operation
We can find five in the machine room.
First of all, the hook on the beam of the elevator room will mark the load and spray the warning color. It is easy to think of the 10 principles — lifting and lifting operation.
To verify the stability and carrying capacity of locks and hoisting equipment
Check the spreader before each use. Make sure the sling is the right size. Make sure to clear all obstructions before lifting.
Do not stand or walk under hanging objects.
4. It is easy to observe three contents of 10 principles in the control cabinet of the computer room. First, the control cabinet is electrify, so when we want to wire the control cabinet without electricity, we will cut off the power, which is the Lockout tagout in the 10 principles
Lockout tagout
Remember to test and validate
Make sure there are no passengers in the car. All doors are closed and mechanically locked.
To protect the control cabinet can not power off any circuits, for example, 220V lighting. Before work, if the elevator does not need to be moved, must be personally locked.
5. In the process of power outage, we should test whether the power outage is successful. At this time, we should correctly use the multimeter, such as a single hand-held meter and pen, which is the live operation in the 10 principles — troubleshooting.
Live work – Troubleshooting
To prevent accidental contact with the live circuit, use the prescribed tools and test with the probe held in one hand only.
When no power supply is needed, Lockout tagout should be used.
Check tools before use.
Always protect the live circuit.
Before using the meter, check it on a known power supply.
6. Power off, power check, Lockout tagout, this is not the operation requirements before the use of short wiring? Especially in our installation site, no scaffolding installation process, slow car debugging will inevitably use short wiring. It is natural to think that this is the principle of 10 – short wiring.
Short wires
Count short wiring before and after each use
Check for damage to short wiring and use only the specified short wiring.
When the elevator is in the state of automatic operation, the safety loop can not be short connected.
Remember to notify colleagues when using short connections.
Post time: Jul-03-2021