Ice storms, freezing rain, and power line collapse¶

An ice storm is a destructive winter weather disaster caused by prolonged freezing rain, a meteorological phenomenon in which liquid rain falls through a sub-freezing layer of air just above the ground (\(0^\circ\text{C}\) [\(32^\circ\text{F}\)] or colder) and freezes on contact into a solid, transparent sheet of glaze ice across every exposed surface. Unlike fluffy snow that brushes off branches and wires, glaze ice has a density of roughly 900 kilograms per cubic meter (\(56\text{ pounds per cubic foot}\)): a radial ice accumulation of just 13 to 25 millimeters (0.5 to 1.0 inch) adds hundreds of kilograms (up to 500 to 1,000 pounds) of dead weight to a single power line span and several metric tons of ice to the canopy of a mature tree. As branches snap like rifle shots and steel transmission towers buckle in a domino effect, millions of homes can lose electricity and heat for days or weeks while roads turn into impassable sheets of frictionless ice.

ເຮັດອັນນີ້ດຽວນີ້¶

1. Stay indoors and away from rooms beneath large overhanging trees while ice is accumulating. Once radial glaze ice exceeds 6 millimeters (0.25 inches), massive tree limbs and entire shallow-rooted trees begin crashing through roofs without warning, especially when wind speeds exceed 25 to 40 kilometers per hour (15 to 25 miles per hour). Move family members and pets out of top-floor bedrooms located directly under heavy oak, pine, maple, or birch canopies and shelter on the lowest interior floor.
2. Stay completely off the roads: neither 4-Wheel Drive (4WD) nor winter tires can grip wet glaze ice. Freezing rain creates a microscopic film of liquid water on top of smooth glare ice at \(0^\circ\text{C}\) (\(32^\circ\text{F}\)), dropping tire traction to near zero and increasing stopping distances 10-fold. Even emergency fire trucks and snowplows slide sideways off crowned highways before salt trucks can treat the road. Do not drive unless evacuating an immediate life-threatening medical or structural emergency.
3. Treat every downed wire, hanging cable, and ice-weighted tree branch touching a wire as energized and lethal. Maintain a minimum safety perimeter of 10 meters (35 feet) (further if high-voltage transmission lines are bouncing) around any fallen wire, utility pole, or metal fence touching a wire. Never try to duck under or push aside a low-hanging ice-laden wire or tree limb with a wooden broomstick or snow shovel: wet glaze ice conducts high-voltage electricity down the handle and through your heart. Call your electric utility emergency line or local emergency number (911 in the United States and Canada, 112 across the European Union, 999 in the United Kingdom, or see all ຕົວເລກສຸກເສີນ).
4. If a power line falls on your car, stay inside unless the vehicle catches fire, then jump clear with both feet together and shuffle/hop away. While sitting inside the cabin, your rubber tires and metal car frame act as a protective Faraday cage. If fire forces you out, open the door, never touch the metal car body and the icy ground at the same time, jump out so both feet land on the ground simultaneously, and shuffle or bunny-hop with your feet pressed tightly together for at least 10 to 15 meters (35 to 50 feet) to prevent lethal step-potential voltage from flowing up one leg and down the other.
5. Consolidate your family into one single "micro-heated" interior room if the power goes out. Instead of trying to heat an entire freezing house, pick one small interior room (ideally on the ground floor with few windows and a South-facing exposure), hang blankets or heavy tapestries over the windows and doorway, roll towels against the bottom door crack, and pitch a camping tent on top of mattresses inside the room so body heat stays trapped inside a tiny air volume.
6. Prevent indoor carbon monoxide poisoning and frozen pipe bursts immediately. Verify that every battery-operated Carbon Monoxide (CO) alarm is working before lighting a fireplace or starting an outdoor generator (placed at least 6 meters [20 feet] outside with the exhaust pointed away from the house). To keep water pipes from freezing and bursting during a blackout, open cabinet doors under kitchen and bathroom sinks and turn the furthest faucets on to a slow, steady pencil-lead trickle, or shut off the main house water valve and drain all faucets if indoor temperatures drop below \(0^\circ\text{C}\) (\(32^\circ\text{F}\)).

Ice storm and power line collapse survival decision flowchart¶

Follow this step-by-step emergency decision tree when an Ice Storm Warning is issued or glaze ice begins snapping trees and power lines.

flowchart TD
    Start["Ice Storm Warning / Active Freezing Rain:<br/>Glaze Ice Coating Roads, Trees, and Power Lines"] --> LocationCheck{"Where are you right now?"}

    LocationCheck -->|"Caught in a Vehicle Outdoors"| WireOnCar{"Did a downed power line or<br/>electrified tree fall on your car?"}
    WireOnCar -->|"YES: Wire on car"| StayInCar["1. STAY INSIDE VEHICLE and call 911 / 112 / 999<br/>2. Warn bystanders to stay 10 meters (35 feet) back<br/>3. ONLY if car is on fire: Jump clear with BOTH feet together<br/>   (never touch car and ground at once) and shuffle feet together 15 m away"]
    WireOnCar -->|"NO: Sliding on glaze ice"| PullOffRoad["Exit highway at next safe parking lot (away from trees and utility poles)<br/>Wait out freezing rain; see Flash Freeze & Black Ice guide if stranded"]

    LocationCheck -->|"Inside a Home or Building"| TreeRoofCheck{"Are heavy ice-coated trees groaning<br/>or snapping above your roof?"}
    TreeRoofCheck -->|"ແມ່ນແລ້ວ"| MoveDownstairs["Move immediately to lowest floor / interior hallway away from tree side<br/>Never go outside under glazed trees (falling branches kill instantly)"]
    TreeRoofCheck -->|"ບໍ່"| PowerStatus{"Has electrical grid power failed?"}
    MoveDownstairs --> PowerStatus

    PowerStatus -->|"Power Still ON"| PreBlackoutPrep["1. Charge all phones, power banks, and medical batteries to 100%<br/>2. Crank home thermostat up 2 to 3 C (4 to 5 F) to pre-warm thermal mass<br/>3. Fill bathtubs and pots with water; locate main water shutoff valve"]

    PowerStatus -->|"Power OUT (Multi-Day Freezing Blackout)"| HeatAndWater["1. Unplug sensitive electronics (leave 1 lamp switched on to signal return)<br/>2. Seal off and shelter in ONE small interior room (use tent + blankets)<br/>3. Run generators ONLY outdoors >= 6 meters (20 feet) from house<br/>4. NEVER use charcoal grills, gas ovens, or camp stoves indoors<br/>5. Drip faucets or shut off main water valve + drain pipes if house < 0 C (32 F)"]

Meteorology and physics: Why freezing rain is far more dangerous than snow or sleet¶

Many people confuse freezing rain with sleet (ice pellets) or snow, yet their impact on infrastructure is completely different. Both begin high in the clouds as falling snowflakes that pass through an elevated warm layer of air ("warm nose" above \(0^\circ\text{C}\) [\(32^\circ\text{F}\)]) at roughly \(800\text{ to }1,500\text{ meters}\) (\(2,600\text{ to }5,000\text{ feet}\)) altitude, melting the snow completely into liquid raindrops:

• Sleet (Ice Pellets): If the sub-freezing cold air layer near the ground is deep (more than \(400\text{ to }600\text{ meters}\) [\(1,300\text{ to }2,000\text{ feet}\)] thick), the falling raindrops have enough time to freeze back into hard, translucent little ice balls before they hit the ground. Sleet bounces off tree branches, power lines, and windshields like dry sand and rarely brings down the power grid.
• Freezing Rain (Glaze Ice): If the sub-freezing layer hugging the ground is shallow (only \(100\text{ to }300\text{ meters}\) [\(300\text{ to }1,000\text{ feet}\)] deep), the falling liquid raindrops do not have time to freeze in midair. Instead, they become supercooled liquid water droplets (liquid water cooled below \(0^\circ\text{C}\) [\(32^\circ\text{F}\)]). The instant a supercooled raindrop strikes a sub-freezing power line, tree twig, bridge deck, or handrail, it spreads out into a thin film and freezes solid on contact, locking around the object like epoxy resin.

The Sperry-Piltz Ice Accumulation Index (SPIA) and weight load physics¶

Meteorologists at the United States National Weather Service (NWS) and utility engineers use radial ice thickness combined with wind speed to predict catastrophic infrastructure collapse:

ເປັນຫຍັງລົມຈຶ່ງປ່ຽນເປັນແກ້ວປານກາງເປັນອາວຸດທຳລາຍຕາຂ່າຍ: "Conductor Galloping"¶

ນ້ໍາຫນັກພຽງແຕ່ເຄິ່ງຫນຶ່ງແມ່ນອັນຕະລາຍຕໍ່ສາຍໄຟຟ້າແລະຕົ້ນໄມ້. ເມື່ອຝົນທີ່ໜາວເຢັນລົງລຸ່ມຂອງສາຍທໍ່ກົມ ແລະ ໜາວລົງເປັນກ້ອນ, ມັນປ່ຽນສ່ວນຂ້າມຂອງສາຍຈາກວົງມົນໃຫ້ເປັນຮູບທໍ່ນ້ຳ ປີກຍົນ (airfoil). ເມື່ອລົມພະຍຸ 30 ຫາ 60 ກິໂລແມັດຕໍ່ຊົ່ວໂມງ (20 ຫາ 38 ໄມຕໍ່ຊົ່ວໂມງ)** ໄດ້ພັດຜ່ານຊ່ອງອາກາດທີ່ເຄືອບດ້ວຍນ້ຳກ້ອນນັ້ນ, ການຍົກແອໂລໄດນາມິກເຮັດໃຫ້ສາຍໄຟໜັກທັງໝົດຄວາມຍາວ 100 ແມັດແຕກຂຶ້ນ ແລະ ລົງຢ່າງແຮງໃນຄື້ນ ** ລະດັບຄວາມສູງ 1 ຫາ 3 ແມັດ (3 ຫາ 10 ຟຸດ) ວິສະວະກອນທໍ່ໄຟຟ້າ ** ປະກົດການຫຍໍ້ທໍ້. ສາຍໄຟແກວ່ງເຂົ້າກັນ (ເຮັດໃຫ້ຕາບອດສີຟ້າ-ສີຂຽວກະພິບ ແລະການລະເບີດຂອງໝໍ້ແປງໄຟ) ແລະ ຈີກເສົາເຄື່ອງໃຊ້ໄມ້ ແລະແຂນເຫຼັກອອກຈາກພື້ນດິນທີ່ໜາວເຢັນ.

ສາຍໄຟຟ້າທີ່ລົ້ມລົງ, ຕົ້ນໄມ້ທີ່ມີໄຟຟ້າ, ແລະການຢູ່ລອດຂອງ "ທ່າແຮງຂັ້ນຕອນ" ພື້ນດິນ¶

ໃນລະຫວ່າງພາຍຸນ້ຳກ້ອນ, ເສັ້ນກະຈາຍຫຼາຍພັນສາຍ (\(7,200\text{ ເຖິງ }34,500\text{ volts}\)) ແລະການບໍລິການໃນຄົວເຮືອນຫຼຸດລົງ (\(120/240\text{ volts}\)) ຖືກດຶງລົງໄປໃນເດີ່ນ, ຖະໜົນຫົນທາງ, ແລະທາງຍ່າງໂດຍການຫັກຂາຕົ້ນໄມ້.

1. ເປັນ​ຫຍັງ​ສາຍ​ໄຟ​ທີ່​ມີ​ຊີ​ວິດ​ບໍ່​ມີ​ໄຟ​ໄໝ້​ເທິງ​ນ້ຳ​ກ້ອນ ຫຼື​ຫິມະ: ຮູບ​ເງົາ​ສອນ​ຜູ້​ຄົນ​ວ່າ​ສາຍ​ໄຟ​ທີ່​ຖືກ​ຕັດ​ແລ້ວ​ຈະ​ຕີ​ປະ​ກາຍ​ໄຟ​ສີ​ເຫຼືອງ​ສົດ​ໃສ. ໃນຄວາມເປັນຈິງ, ສາຍໄຟຟ້າແຮງດັນສູງພຽງແຕ່ arc ແລະ spark ໄລຍະສັ້ນໆ, ໃນເວລາທີ່ເຮັດໃຫ້ການຕິດຕໍ່ intermittent; ເມື່ອພັກຜ່ອນຢູ່ເທິງກ້ອນ, ຫິມະ, ປູຢາງ, ຫຼືໄມ້ປຽກ, ** ເສັ້ນໄຟ 13,800 ໂວນທີ່ມີພະລັງແຮງຈະຢູ່ຢ່າງງຽບໆ **. ນອກຈາກນັ້ນ, ຕາຂ່າຍໄຟຟ້າ ** ເຄື່ອງຖອດອັດຕະໂນມັດ ** ໄດ້ຖືກຕັ້ງໂຄງການເພື່ອພະຍາຍາມອັດຕະໂນມັດຄືນໃຫມ່ຂອງສາຍທີ່ຕິດຢູ່ຫຼາຍຄັ້ງໃນວິນາທີຫຼືນາທີເພື່ອລຶບລ້າງການຕິດຕໍ່ກັບສາຂາຊົ່ວຄາວ, ຊຶ່ງຫມາຍຄວາມວ່າສາຍ "ຕາຍ" ທັນທີທັນໃດສາມາດດັງໄຟກັບຄືນໄປບ່ອນ 13,800 volts ໃນຂະນະທີ່ທ່ານກໍາລັງຢືນຢູ່ຂ້າງມັນ.
2. ** ນ້ຳກ້ອນທີ່ປຽກຊຸ່ມເຮັດໃຫ້ຕົ້ນໄມ້ ແລະ ຮົ້ວກາຍເປັນຕົວນຳທີ່ຕາຍແລ້ວ**: ເມື່ອງ່າຂອງຕົ້ນໄມ້ທີ່ມີນ້ຳກ້ອນໄດ້ເອື່ອຍກັບສາຍກະຈາຍຢູ່ເໜືອຫົວໂດຍບໍ່ໄດ້ຈັບມັນ, ກະແສໄຟຟ້າແຮງສູງຈະເຄື່ອນລົງຜ່ານນ້ຳກ້ອນທີ່ປຽກຊຸ່ມ ແລະ ນ້ຳຂອງລຳຕົ້ນມາສູ່ໂລກ. ການສໍາຜັດກັບລໍາຕົ້ນ, ກ້າວໄປເທິງຮາກຂອງມັນ, ຫຼືແຕະຮົ້ວເຊື່ອມຕໍ່ຕ່ອງໂສ້ໂລຫະຫຼືຮົ້ວໂລຫະທີ່ສູງເຖິງ 100 ແມັດ (300 ຟຸດ) ບ່ອນທີ່ມີສາຍໄຟໄດ້ຕົກລົງຂ້າມຮົ້ວໄປຂ້າງຫນ້າຖະຫນົນຈະເຮັດໃຫ້ທ່ານໄຟຟ້າລັດວົງຈອນທັນທີ.
3. ຄວາມເຂົ້າໃຈກ່ຽວກັບ "ທ່າແຮງຂັ້ນຕອນ" ແລະ ວິທີສະຫຼັບ/ໂດດເພື່ອຄວາມປອດໄພ: ເມື່ອສາຍໄຟແຮງສູງແຕະພື້ນດິນ, ກະແສໄຟຟ້າຈະແຜ່ອອກຜ່ານດິນ ແລະ ນ້ຳກ້ອນໃນວົງແຫວນທີ່ມີຈຸດສູນກາງເຊັ່ນ: ຄື້ນໃນໜອງ: ພື້ນດິນທີ່ແຕະກັບສາຍໄຟຟ້າອາດຈະຢູ່ທີ່ **\(10,000\text{ volts}\)*\(\, aring {3} ແມັດ ຢູ່ທີ່ **\)7,000\text{ volts}$**, ແລະວົງແຫວນ \(2\text{meter}\) (\(6\text{ feet}\)) ຢູ່ຫ່າງຢູ່ທີ່ \(4,000\text{ volts}\). ຖ້າເຈົ້າຍ່າງແບບປົກກະຕິໃກ້ເສັ້ນລົງເພື່ອໃຫ້ຕີນໜ້າຂອງເຈົ້າຢູ່ເທິງວົງ \(7,000\text{V}\) ແລະຕີນຫຼັງຂອງເຈົ້າຢູ່ເທິງວົງ \(4,000\text{V}\), \(3,000\text{ volts}\) ຂອງຄວາມແຕກຕ່າງກັນທີ່ເປັນໄປໄດ້ ("ສັກຍະພາບກ້າວ") ຍິງຂາໜຶ່ງຊື່, ຜ່ານ pelvis ຂອງເຈົ້າລົງ ແລະຂາອື່ນໆ,
4. ເຕັກນິກການໜີ: ກົດຂໍ້ຕີນ ແລະຕີນໃຫ້ແໜ້ນ ເພື່ອໃຫ້ຕີນທັງສອງຢູ່ໃນແຮງດັນໄຟຟ້າຄືກັນ, ແລະ ສົ້ນສົ້ນຕີນໄປຫາຕີນ ໂດຍທີ່ບໍ່ເຄີຍຍົກຕີນຂຶ້ນ ຫຼືແຍກຕີນຂອງເຈົ້າອອກຫຼາຍກວ່າສອງສາມຊັງຕີແມັດ (ຫຼືໂດດຄືກັບກະຕ່າຍລົງມາຢູ່ຕີນທັງສອງເບື້ອງພ້ອມໆກັນ) ຈົນກວ່າເຈົ້າຈະຢູ່ຫ່າງກັນຢ່າງໜ້ອຍ **10 ຫາ 15 ແມັດ (10 ຫາ 15 ແມັດ) ພາຫະນະ.

ລອດຊີວິດຈາກຄວາມໜາວເຢັນເປັນເວລາຫຼາຍມື້ຢູ່ໃນເຮືອນໂດຍບໍ່ມີການເປັນພິດຂອງຄາບອນໂມໂນໄຊ¶

ເມື່ອພາຍຸນ້ຳກ້ອນໄດ້ເຂົ້າຍຶດເອົາເສົາໄຟຟ້າຂອງແຕ່ລະບ້ານເປັນພັນໆຕົ້ນ, ພະນັກງານສາຍສາທາລະນຸປະໂພກຕ້ອງໄດ້ຫຼຽວເບິ່ງຕົ້ນໄມ້ທີ່ລົ້ມລົງມາຫຼາຍກິໂລແມັດ ກ່ອນທີ່ຈະສາມາດຕັ້ງເສົາໃໝ່ໄດ້, ຊຶ່ງໝາຍເຖິງເຂດທີ່ຢູ່ອາໃສຢູ່ຕາມປົກກະຕິຕ້ອງລໍຖ້າ 3 ຫາ 14 ມື້ ເພື່ອໃຊ້ໄຟຟ້າໃນອຸນຫະພູມທີ່ໜາວເຢັນ.

ປອດໄພ ທຽບກັບວິທີເຮັດຄວາມຮ້ອນ ແລະ ປຸງອາຫານສຸກເສີນໃນຮົ່ມ¶

Step-by-step: How to keep your home water pipes from freezing and bursting¶

Water expands by roughly 9 percent in volume when it freezes into ice at \(0^\circ\text{C}\) (\(32^\circ\text{F}\)), generating over 2,000 pounds per square inch (\(14,000\text{ kPa}\)) of hydraulic pressure downstream of the ice plug, enough to split copper, PVC, and even PEX plumbing pipes wide open inside your walls and flood your house the moment the ice thaws:

1. While you still have some residual warmth in the house (Indoor temp between \(2^\circ\text{C}\) and \(10^\circ\text{C}\) [\(35^\circ\text{F}\) to \(50^\circ\text{F}\)]):
2. Open all vanity and cabinet doors underneath kitchen, bathroom, and laundry room sinks (especially sinks mounted against an exterior outside wall) so room air can circulate around the pipes.
3. Turn on both the hot and cold water handles at the faucets furthest from where your main water line enters the house until a continuous, pencil-lead-thin trickle flows into the drain. Moving water resists freezing, and an open faucet relieves destructive hydraulic pressure if an ice plug starts forming inside the pipe.
4. If indoor house temperatures are dropping to or below \(0^\circ\text{C}\) (\(32^\circ\text{F}\)) or you are evacuating to a warming center:
5. Do NOT rely on dripping faucets once the inside of the house freezes (more than all traps and drains themselves will freeze solid and overflow).
6. Shut off the main house water valve immediately (located in the basement, utility closet, crawlspace, or outdoor underground meter box; turn a lever valve 90 degrees perpendicular to the pipe, or turn a round wheel valve clockwise until snug).
7. Open every single hot and cold faucet in the house (from the top floor down to the lowest basement utility sink and outdoor hose bibs) so gravity drains the standing water out of the vertical pipe risers.
8. Flush every toilet once to empty the tank, and pour a splash of non-toxic RV / marine propylene glycol antifreeze (or windshield washer fluid / concentrated salt water in an emergency; never automotive radiator ethylene glycol if pets could drink it) into the toilet bowl trap and sink P-traps so the curved water traps do not crack.
9. Turn off the circuit breaker or gas pilot valve to your hot water heater if you drain the hot water tank, so the heating element does not burn out dry when grid power suddenly comes back on.

Safe recovery after the ice storm: Avoiding the "Widowmaker" thaw and chainsaw injuries¶

ເມື່ອສຸດທ້າຍອຸນຫະພູມເພີ່ມຂຶ້ນສູງກວ່າ \(0^\circ\text{C}\) (\(32^\circ\text{F}\)) ຫຼັງຈາກພະຍຸນ້ຳກ້ອນ, ປ່ອງຢ້ຽມອັນຕະລາຍ 12 ຫາ 24 ຊົ່ວໂມງເລີ່ມຕົ້ນ:

• ** ກິ່ງງ່ານ້ຳກ້ອນທີ່ຕົກ ແລະ “ແມ່ໝ້າຍ” ງ່າໃນເວລາເທືອ**: ເມື່ອແສງແດດເຮັດໃຫ້ເປືອກຕົ້ນໄມ້ ແລະ ມຸງຫຼັງຄາເຮືອນ, ແຜ່ນນ້ຳກ້ອນທີ່ມີນ້ຳໜັກ ** 10 ຫາ 50 ກິໂລກຣາມ (22 ຫາ 110 ປອນ)** ແລະ ໜໍ່ໄມ້ທີ່ມີຄວາມຍາວປະມານ 1 ແມັດ, ທັນທີທັນໃດກໍ່ແຕກອອກ ແລະ ຕົກລົງຈາກຄວາມເລິກປະມານ 10 ຫາ 20 ແມັດ (3 ຟຸດ). ໃນ​ຂະນະ​ດຽວ​ກັນ, ແຂນ​ຂາ​ຂອງ​ຕົ້ນ​ໄມ້​ທີ່​ມີ​ຮອຍ​ແຕກ​ທີ່​ມີ​ພຽງ​ແຕ່​ຂົວ​ນ້ຳ​ກ້ອນ​ທີ່​ຄ້າງ​ຢູ່​ນັ້ນ​ກໍ​ແຕກ​ອອກ​ຢ່າງ​ກະທັນຫັນ​ໃນ​ຂະນະ​ທີ່​ນ້ຳ​ກ້ອນ​ໄດ້​ລະ​ລາຍ. ໃສ່ໝວກແຂງ ຖ້າເຈົ້າຕ້ອງຍ່າງນອກເຮືອນ, ຫ້າມຍ່າງໃຕ້ຫລັງຄາເຮືອນ ຫຼື ເຮືອນຍອດຕົ້ນໄມ້ທີ່ເສຍຫາຍ, ແລະ ຢ່າປ່ອຍໃຫ້ເດັກນ້ອຍຫຼິ້ນພາຍໃຕ້ຕົ້ນໄມ້ທີ່ມີນ້ຳກ້ອນ.
• ** “ສະໃບໄມ້ດູ່” ທີ່ເກັບກ່ຽວໃນລະດູໃບໄມ້ປົ່ງເມື່ອຕັດຕົ້ນໄມ້ທີ່ລົ້ມລົງ**: ຫ້າມໃຊ້ໂສ້ເພື່ອຕັດລຳຕົ້ນທີ່ລົ້ມ ຫຼື ແຂນຂາທີ່ ** ງໍພາຍໃຕ້ຄວາມກົດດັນ ** ພາຍໃຕ້ຕົ້ນໄມ້ທີ່ໜັກໜ່ວງອີກ (springpole) ຫຼື ຕຳກັນຢູ່ບ່ອນໃດກໍໄດ້ຢູ່ໃກ້ກັບສາຍໄຟ. ເມື່ອຖືກຕັດແລ້ວ, ແຂນຂາທີ່ງໍງໍຈະງໍດ້ວຍແຮງນັບພັນນິວຕັນ, ຄາງກະໄຕແຕກ, ຫນ້າເອິກ, ແລະຄໍ. ອອກຈາກການເຮັດວຽກຕົ້ນໄມ້ທັງຫມົດຢູ່ໃກ້ກັບສາຍ utility ກັບ arborists ຜົນປະໂຫຍດທີ່ໄດ້ຮັບການຝຶກອົບຮົມ, ແລະເບິ່ງຂອງພວກເຮົາ ຄູ່ມືການອະນາໄມແລະການຟື້ນຕົວຂອງພະຍຸ ສໍາລັບໂປໂຕຄອນ chainsaw ທີ່ປອດໄພ.

ຄຳຖາມທີ່ມັກຖາມເລື້ອຍໆ¶

ກວດສອບແຫຼ່ງທີ່ມາ¶

• ** ການບໍລິການສະພາບອາກາດແຫ່ງຊາດ (NWS / NOAA, ສະຫະລັດ):** ດັດຊະນີການສະສົມນ້ຳກ້ອນສະເປີຣີ-ພິລດສ໌ (SPIA), ເກນການເຕືອນໄພພະຍຸນ້ຳກ້ອນ ແລະ ຂໍ້ແນະນຳຄວາມປອດໄພຂອງສະພາບອາກາດໃນລະດູໜາວ.
• ** ສິ່ງແວດລ້ອມ ແລະ ການປ່ຽນແປງດິນຟ້າອາກາດການາດາ (ECCC) ແລະ ຄວາມປອດໄພສາທາລະນະການາດາ:** * ພິທີການກຽມພ້ອມຮັບມືກັບສະພາບອາກາດໃນລະດູໜາວ ແລະ ພາຍຸນ້ຳກ້ອນທີ່ຮຸນແຮງ* (ລວມເອົາບົດຮຽນຈາກພະຍຸນ້ຳກ້ອນຕາເວັນອອກຂອງອາເມລິກາເໜືອປີ 1998 ແລະພະຍຸນ້ຳກ້ອນ Quebec ປີ 2023).
• ** ສູນຄວບຄຸມ ແລະ ປ້ອງກັນພະຍາດ (CDC, ສະຫະລັດອາເມຣິກາ) ແລະ ຄະນະກໍາມະການຄວາມປອດໄພຂອງຜະລິດຕະພັນຜູ້ບໍລິໂພກ (CPSC, ສະຫະລັດ): ** * ການປ້ອງກັນພິດຄາບອນໂມໂນໄຊຫຼັງຈາກພະຍຸລະດູໜາວ ແລະ ໄຟຟ້າດັບ* (ກົດລະບຽບການຈັດວາງເຄື່ອງປັ່ນໄຟ 6 ແມັດ / 20 ຟຸດ) ແລະ * ການປ້ອງກັນຄວາມຮ້ອນໃນເຮືອນ *.
• *ມູນນິທິຄວາມປອດໄພທາງໄຟຟ້າສາກົນ (ESFI) ແລະ ບໍລິຫານຄວາມປອດໄພ ແລະ ສຸຂະພາບໃນອາຊີບ (OSHA, ສະຫະລັດ): ** * ເສັ້ນໄຟຟ້າຫຼຸດລົງເປັນຂັ້ນຕອນ-ທ່າແຮງຟີຊິກ, ຂັ້ນຕອນການອອກຂອງຍານພາຫະນະ ແລະ ອັນຕະລາຍການລ້ຽງລູກດ້ວຍເຄື່ອງກໍາເນີດໄຟຟ້າແບບພົກພາ.
• ອົງການຄຸ້ມຄອງສຸກເສີນຂອງລັດຖະບານກາງ (FEMA / Ready.gov, ສະຫະລັດ) ແລະ ອົງການກາແດງອາເມລິກາ: ມາດຕະຖານການຢູ່ລອດຂອງພະຍຸລະດູໜາວ ແລະ ມາດຕະຖານການປ້ອງກັນການຕິດທໍ່.

ຄູ່ມືທີ່ກ່ຽວຂ້ອງ¶

• ພາຍຸລະດູໜາວ ແລະພາຍຸຫິມະ
• Flash freeze ແລະຂັບລົດກ້ອນສີດໍາ
• Hypothermia ແລະ frostbite ການຊ່ວຍເຫຼືອຄັ້ງທໍາອິດ
• ການຊ່ວຍເຫຼືອເບື້ອງຕົ້ນຂອງຄາບອນໂມໂນໄຊ ແລະຄວັນຢາສູບ
• ການ​ທໍາ​ຄວາມ​ສະ​ອາດ​ແລະ​ການ​ຟື້ນ​ຟູ​ພະ​ຍຸ​ແລະ​ພະ​ຍຸ​ເຮີ​ຣິ​ເຄນ​