Safety Operation Guide for Elevated Work Platforms in Winter

Recently, many parts of the country have been experiencing continuous cooling, with frequent occurrences of rain, snow, and freezing weather. To ensure the safety of homework, all units and operators must strictly comply with the following regulations:
Before homework: Strictly implement the "three checks"
1. Comprehensive investigation of equipment status
Vehicle system: Before operation, conduct a comprehensive inspection of the structural components to ensure that there are no alarm prompts in the electrical system.
Key parts de icing: Focus on cleaning the frozen surfaces of the arm frame, wire rope, drag chain guide, external wiring harness, and sensors, and strictly prohibit forced operation with ice.
Oil and power: Diesel powered equipment requires the use of diesel and coolant that are suitable for low temperatures, while electric equipment ensures sufficient battery power (with a capacity decay of about 30% in low temperature environments). Hydraulic oil should be replaced with a -15 ℃ specialized model.
Walking system: Check tire wear, remove snow and ice accumulation on the driving route, and test the sensitivity of the braking system.
2. Fine tuned assessment of homework environment
Ground bearing capacity: Snow covers the risk of potholes, and it is necessary to confirm that the working ground is not frozen soft or sunken. The support points of the legs must be padded with solid pressure pads.
Meteorological conditions: Real time monitoring of wind speed (operations are prohibited if the wind speed exceeds 12.5m/s). Stop work immediately in case of heavy snow, hail, or visibility less than 5 meters.
Obstacle recognition: Clean up snow covered electrical wires, trees, and other obstacles within the operating radius, and set up warning signs.
3. Professional confirmation of personnel status
Cold proof equipment: Wear windproof and cold proof clothing, anti slip insulated shoes, and low-temperature protective gloves to avoid clothing being wrapped in ice and snow and affecting operations.
Safety device: Full body seat belts must be hung high and used low, fixed to equipment specific anchor points, and are strictly prohibited from being tied to temporary structures.
Health monitoring: Measure personnel's blood pressure before working in a low-temperature environment to avoid individuals with chronic diseases such as hypertension and arthritis from participating in high-altitude operations.

Homework: Implement the "Three Stabilities"
1. Start preheating standardization
After starting the diesel powered equipment, idle and preheat for 8-12 minutes until the hydraulic oil temperature rises above 10 ℃ before operation.
Turn on the lithium battery preheating mode for the electric equipment, and conduct a 3-minute no-load test run after the alarm is cleared.
Perform a three-level test of "no load light load heavy load" to confirm that there are no abnormal noises or lagging in each system.
2. Standardization of Action Operations
All movements adopt the "slow start, uniform speed, slow stop" mode, and the arm rotation speed does not exceed 2r/min.
During the platform lifting process, observe the load status throughout the entire process, and stop working immediately if there is any tilt.
When working in adverse weather conditions, add ground command personnel and use gestures and walkie talkies for dual command.
3. Safe mobile walking
The driving speed on snowy roads should not exceed 5km/h, and anti-skid chains should be installed on icy roads to maintain a safe distance of more than 10 meters between vehicles.
The angle of slope operation shall not exceed 15 °, and a stop device shall be installed at the top and bottom of the slope when operation is necessary.
When transitioning over long distances, the platform is lowered to the lowest position and the locking mechanism is fixed.
After homework: Strengthen the "three protections"
1. Equipment parking protection
Priority should be given to parking in dry indoor areas, while outdoor parking should be covered with waterproof and thermal insulation covers to remove snow from the platform.
The electric equipment is charged to over 80%, and the diesel powered equipment is drained of water from the oil-water separator.
Fully retract the legs and place triangular blocks on the tire pads to prevent slipping.
2. System maintenance and protection
Clean the sensors and wiring harness interfaces after daily homework, and spray special anti-corrosion agents.
Check the sealing of the hydraulic system weekly and replenish low-temperature specialized lubricating oil.
Perform non-destructive testing on metal structural components every month to identify low-temperature stress cracks.
3. Personnel health protection
Immediately enter a warm environment after homework, replenish high calorie food and warm water.
Establish a temperature monitoring ledger and seek medical attention immediately in case of frostbite symptoms.
Continuous work exceeding 2 hours must be rotated to avoid the risk of low temperature loss.
Emergency response: Remember the "three steps"
Sudden malfunction: Immediately press the emergency stop button, evacuate personnel to a safe area, and set up warning signs.
Extreme weather: When the wind suddenly increases, lower the platform to its lowest point and evacuate personnel quickly to a safe location on the ground.
Personnel in distress: In case of frostbite or falling, immediately activate the emergency plan, call 120 emergency number, and take measures to keep warm.
The safety of high-altitude operations in winter is no small matter. Each unit must establish a daily safety inspection ledger, implement the system of "pre shift education, in shift inspection, and post shift summary", and ensure that every operation is within a safe and controllable range.