Downed power lines on your car and step potential¶

When a live overhead utility wire drops onto your motor vehicle or touches the ground nearby after a crash, storm, or pole impact, the metal shell of your car and the surrounding roadway become charged with thousands of volts of lethal electricity. Stepping out of the vehicle normally creates an instant bridge for high-voltage electrical current to flow through your body into the earth, causing immediate fatal electrocution. Even after you are clear of the car, walking normally across energized pavement can send thousands of volts surging up one leg and down the other through a phenomenon called step potential.

Unless your vehicle is actively on fire, the safest place in the world during a downed power line emergency is sitting still inside the passenger cabin until utility crews shut off the power grid. This guide provides immediate survival actions, explains the physics of Faraday cages, touch potential, and step potential, details the exact jump-and-shuffle fire evacuation sequence, and covers electric vehicle and heavy equipment protocols based on guidance from the Occupational Safety and Health Administration (OSHA) and the Federal Emergency Management Agency (FEMA) in the United States, the Health and Safety Executive (HSE) in the United Kingdom, and international electrical safety standards.

ធ្វើដូចនេះឥឡូវនេះ¶

1. Stay inside your vehicle and keep your hands in your lap. Keep your seatbelt fastened or stay seated in the center of your seat. Do not touch any interior metal door frames, window pillars, metal latches, or exterior body panels.
2. Never step out of the vehicle normally. Touching any part of the car while your foot touches the ground creates touch potential, completing a high-voltage circuit straight through your heart into the earth.
3. Call your local emergency number immediately from inside the cabin. Dial 911 in the United States and Canada, 112 across the European Union, 999 in the United Kingdom, 000 in Australia, or consult the directory of លេខសង្គ្រោះបន្ទាន់. Tell the dispatcher explicitly: "A downed power line is on or near my vehicle at [exact location]," so the electric utility company can de-energize and ground the circuit.
4. Warn approaching bystanders and first responders to stay far back. Honk your horn repeatedly and shout through a slightly cracked window to warn anyone walking toward your car to stop immediately and stay at least 10 to 15 meters (33 to 50 feet) away from the vehicle, the pole, and any sagging or fallen wires (and at least 30 to 50 meters [100 to 165 feet] away from high-voltage transmission towers).
5. Wait inside until electric utility crews confirm the line is dead and grounded. Do not attempt to exit the car just because the wire stopped sparking, and do not step out until utility linemen or firefighters physically verify that the line is de-energized and tell you it is safe.
6. Jump clear with both feet together and shuffle away ONLY if the car catches fire. If flames, heavy smoke, or leaking fuel force you to abandon the vehicle, push the door fully open using the plastic interior handle without touching outer metal, stand on the dry rubber floor or plastic sill, fold your arms tightly across your chest, jump completely clear so both feet land on the ground at the exact same instant without touching the car, and shuffle both feet pressed together for at least 15 meters (50 feet).

Downed power line and vehicle fire decision tree¶

flowchart TD
    Root["Downed Power Line on Vehicle, Across Roadway, or Near Crash Scene"]
    Where{"Are you inside the vehicle or an outside bystander?"}

    Outside["OUTSIDE BYSTANDER / APPROACHING DRIVER<br/>1. Stop at least 15 meters (50 feet) back; 30+ m (100+ ft) for transmission lines<br/>2. Never drive over a downed wire or touch metal guardrails/fences<br/>3. Shout to trapped occupants to STAY INSIDE their car<br/>4. Call 911 / 112 / 999 and request emergency utility dispatch"]

    Inside["INSIDE THE TRAPPED VEHICLE"]
    FireCheck{"Is the vehicle actively on fire, filling with smoke,<br/>or showing EV battery thermal runaway?"}

    SafeStay["NO FIRE: STAY INSIDE THE FARADAY CABIN<br/>1. Do NOT step out and do NOT try to drive away if tangled<br/>2. Keep hands in lap away from metal door frames and pillars<br/>3. Call 911 / 112 / 999 to report live wire on vehicle<br/>4. Honk horn and warn bystanders back 15 meters (50 feet)<br/>5. Wait until utility crew grounds the line and clears you"]

    FireEvac["ACTIVE FIRE: EMERGENCY JUMP-AND-SHUFFLE EVACUATION<br/>1. Push door wide open using plastic handle; do NOT touch outer metal<br/>2. Stand on interior plastic/rubber threshold and spot clear landing area<br/>3. Cross arms tightly over chest (hold small child/pet tightly to chest)<br/>4. JUMP completely clear with both feet together (never bridge car & ground)<br/>5. Land on BOTH feet simultaneously with knees slightly bent<br/>6. SHUFFLE both feet pressed together (slide soles 5 cm at a time)<br/>for at least 15 meters (50 feet) before walking normally"]

    Root --> Where
    Where -->|Outside Bystander| Outside
    Where -->|Inside Vehicle| Inside
    Inside --> FireCheck
    FireCheck -->|No Fire| SafeStay
    FireCheck -->|Yes: Fire or Smoke| FireEvac

រូបវិទ្យានៃការរស់រានមានជីវិត៖ ហេតុអ្វីបានជាការស្នាក់នៅខាងក្នុងធ្វើឱ្យអ្នកនៅរស់¶

ការយល់ដឹងអំពីរបៀបដែលចរន្តអគ្គិសនីតង់ស្យុងខ្ពស់មានឥរិយាបទនៅពេលដែលខ្សែភ្លើងប៉ះនឹងរថយន្ត និងផែនដី ពន្យល់ពីមូលហេតុដែលការដើរចេញជាធម្មតាសម្លាប់ភ្លាមៗ ហើយហេតុអ្វីបានជាអ្នកត្រូវតែផ្លាស់ប្តូររបៀបដែលជើងរបស់អ្នកផ្លាស់ទី ប្រសិនបើត្រូវបង្ខំឱ្យគេចពីភ្លើង។

1. ឥទ្ធិពលទ្រុង Faraday ទល់នឹងទេវកថានៃសំបកកង់កៅស៊ូ¶

ទេវកថាសាធារណៈដែលរីករាលដាលបានអះអាងថា រថយន្តមានសុវត្ថិភាពក្នុងពេលមានរន្ទះបាញ់ ឬដាច់ខ្សែភ្លើង ដោយសារសំបកកង់កៅស៊ូរបស់វាការពាររថយន្តពីដី។ ** នៅពេលទាក់ទងជាមួយខ្សែថាមពលតង់ស្យុងខ្ពស់ ទេវកថារបស់សំបកកង់កៅស៊ូគឺមិនពិត និងគ្រោះថ្នាក់៖** - សំបកកង់រថយន្តដឹកអ្នកដំណើរស្តង់ដារត្រូវបានផលិតឡើងដោយកាបូនខ្មៅ (សម្រាប់ភាពធន់នៃកង់) និងខ្សែក្រវាត់ដែកខាងក្នុងដែលធ្វើឱ្យពួកវាដំណើរការដោយផ្នែកនៅតង់ស្យុងខ្ពស់។ - នៅពេលដែលខ្សែចែកចាយពី 7,200 វ៉ុល ទៅ 34,500 វ៉ុល ធ្លាក់លើដំបូលរថយន្ត ឬក្រណាត់ តង់ស្យុងបានងាយស្រួលកាត់តាម ឬឆ្លងកាត់ផ្នែកចំហៀងសើមនៃសំបកកង់កៅស៊ូចូលទៅក្នុងផ្លូវ ឬធ្វើឱ្យសំបកកង់ឡើងកំដៅរហូតដល់ឆេះ និងផ្ទុះ ដោយទម្លាក់កង់ដែកដោយផ្ទាល់ទៅលើចិញ្ចើមផ្លូវ។ - អ្វី​ដែល​ការពារ​អ្នក​នៅ​ខាងក្នុង​រថយន្ត​គឺ គោលការណ៍​ទ្រុង​ហ្វារ៉ាដេយ (ការ​ភ្ជាប់​វត្ថុធាតុ)៖ ចរន្ត​អគ្គិសនី​ហូរ​ចេញ​តាម​ផ្នែក​ខាង​ក្រៅ​នៃ​តួ​រថយន្ត​ដែក​ឬ​អាលុយមីញ៉ូម​មក​កាន់​ផែនដី។ ដរាបណាអ្នកអង្គុយទាំងស្រុងនៅខាងក្នុងកាប៊ីនដោយមិនប៉ះដីខាងក្រៅ គ្រប់ផ្នែកនៃរាងកាយរបស់អ្នកមានសក្តានុពលអគ្គិសនីដូចគ្នា (វ៉ុល) ដូចកាប៊ីនខាងក្នុងនៅជុំវិញអ្នក។ ដូចជាសត្វស្លាបមួយក្បាលដែលអង្គុយដោយសុវត្ថិភាពនៅលើខ្សែភ្លើង 13,800 វ៉ុល ដែលមានជើងទាំងពីរនៅលើខ្សែដូចគ្នានោះ ** ចរន្តអគ្គិសនីសូន្យនឹងហូរកាត់រាងកាយរបស់អ្នក នៅពេលដែលមានភាពខុសគ្នាសូន្យវ៉ុល (ភាពខុសគ្នាសក្តានុពល) ឆ្លងកាត់ជាលិការបស់អ្នក។**

2. ប៉ះសក្តានុពល: ហេតុអ្វីបានជាការបោះជំហានចេញពីរថយន្តគឺស្លាប់¶

នៅពេលដែលអ្នកបើកទ្វាររថយន្ត ហើយដាក់ជើងម្ខាងនៅលើផ្លូវកៅស៊ូ ខណៈពេលដែលដៃ ត្រគាក ឬជើងផ្សេងទៀតរបស់អ្នកនៅតែប៉ះនឹងស៊ុមទ្វារដែក ឬបន្ទះថ្ម អ្នកបំផ្លាញការការពារសមល្មមរបស់អ្នក ហើយបង្កើត Touch Potential៖ - ដៃរបស់អ្នកប៉ះតួរថយន្តគឺនៅតង់ស្យុងពេញមួយខ្សែ (ឧទាហរណ៍ 13,800 វ៉ុល)។ - ជើងរបស់អ្នកសម្រាកនៅលើចិញ្ចើមផ្លូវ 0.6 ម៉ែត្រ (2 ហ្វីត) ឆ្ងាយគឺនៅតង់ស្យុងដីទាប (ឧទាហរណ៍ ** 8,000 វ៉ុល**) ។ - យោងតាមច្បាប់របស់ Ohm ($ I = V / R$) នោះ ** ភាពខុសគ្នា 5,800 វ៉ុល** ឆ្លងកាត់ភាពធន់ទ្រាំនៃរាងកាយមនុស្សសើមប្រហែល 1,000 ohms ជំរុញឱ្យជិត 6 amperes នៃចរន្តឆ្លាស់ ដោយផ្ទាល់តាមរយៈដៃរបស់អ្នក កាត់ទ្រូង និងបេះដូងរបស់អ្នក ហើយជើងរបស់អ្នកចូលទៅក្នុងដី។ ដោយពិចារណាថាគ្រាន់តែ 0.05 ទៅ 0.1 amperes (50 ទៅ 100 milliamperes) នៃ 50/60 Hz ចរន្តឆ្លាស់គឺគ្រប់គ្រាន់ដើម្បីបង្កឱ្យស្លាប់ ** ventricular fibrillation ** ស្ពានរថយន្តនិងដីបណ្តាលឱ្យមានការគាំងបេះដូងភ្លាមៗនិងរលាកកំដៅខាងក្នុងធ្ងន់ធ្ងរ។

3. ជម្រាលវ៉ុល និងសក្តានុពលជំហាន ("ឥទ្ធិពល Ripple")¶

បើទោះជាអ្នកលោតចេញពីរថយន្តដោយជោគជ័យដោយមិនប៉ះវាក៏ដោយ ក៏ដីជុំវិញរថយន្ត និងខ្សែភ្លើងដែលធ្លាក់ចុះគឺជាអណ្តូងរ៉ែអគ្គិសនីដ៏សាហាវ។

នៅពេលដែលខ្សែភ្លើងផ្ទាល់ ឬស៊ុមរថយន្តដែលមានថាមពល ចាក់បញ្ចូលចរន្តអគ្គិសនីទៅក្នុងដី ដី បេតុង ឬ asphalt មិនធ្វើចរន្តអគ្គិសនីបានយ៉ាងងាយដូចខ្សែទង់ដែងនោះទេ។ ដោយសារតែផែនដីមានភាពធន់នឹងចរន្តអគ្គិសនីខ្ពស់ តង់ស្យុងធ្លាក់ចុះបន្តិចម្តងៗជាមួយនឹងចម្ងាយគ្រប់ម៉ែត្រពីចំណុចទំនាក់ទំនង បង្កើតបានជារង្វង់មូលនៃតង់ស្យុងថយចុះ ** មើលមិនឃើញ ** បញ្ចេញចេញក្រៅពេញដី ដូចរលកជុំវិញថ្មធ្លាក់ចូលទៅក្នុងស្រះ៖

• ** ត្រង់ចំណុចទំនាក់ទំនងខ្សែ ឬរថយន្ត៖ ** 13,800 វ៉ុល
• ** នៅចម្ងាយ 1 ម៉ែត្រ (3.3 ហ្វីត) ឆ្ងាយ: ** ~ 9,500 វ៉ុល
• ** នៅចម្ងាយ 2 ម៉ែត្រ (6.6 ហ្វីត) ឆ្ងាយ: ** ~ 6,800 វ៉ុល
• ** នៅចម្ងាយ 3 ម៉ែត្រ (10 ហ្វីត) ឆ្ងាយ: ** ~ 4,900 វ៉ុល
• At 6 meters (20 feet) away: ~2,100 volts
• At 10 to 15 meters (33 to 50 feet) away: Approaches 0 volts (depending on voltage and soil moisture)

Now imagine what happens if you jump clear of the car at the 1-meter ring and then take a normal 0.8-meter (2.5-foot) walking or running stride toward safety: - Your back foot is standing on the 1-meter ring at 9,500 volts. - Your front foot steps down onto the 1.8-meter ring at 7,200 volts. - Because your legs and blood vessels are filled with salty, conductive electrolyte fluid that has far lower electrical resistance than dry asphalt or dirt, the 2,300-volt difference between your two feet (Step Potential) takes the path of least resistance: electricity shoots straight up your back leg, through your groin and abdomen, and down your front leg. - That shock instantly locks your leg muscles in tetanic spasm (muscular freeze), knocking you flat on your stomach or hands and knees across the pavement, where your hands and feet now span 2 meters (6.6 feet) of voltage rings across your heart, electrocuting you on the spot.

How to execute the emergency jump-and-shuffle if the car catches fire¶

High-voltage current flowing through a car chassis into the tires rapidly heats the rubber and wheel bearings, often causing the tires to smoke, catch fire, and rupture with loud bangs within minutes. Note that smoking or popping tires alone do not always mean the passenger cabin is on fire. However, if flames enter the wheel wells, heavy dark smoke fills the passenger cabin, or gasoline / EV battery vapor ignites, you must evacuate immediately using the Jump-and-Shuffle Technique.

Step-by-step fire evacuation protocol¶

1. Unbuckle and inspect your landing zone before opening the door: Look out both side windows first. Identify which side of the vehicle is furthest away from the downed wire, broken utility pole, puddles of standing water, or metal highway guardrails. If the driver door has a wire draped across it, climb across the center console to exit through the passenger door.
2. Push the door wide open using only plastic trim: Pull the interior plastic door latch and push the door all the way open against its hinge stop using the plastic interior armrest or panel. Never wrap your fingers around the painted metal edge of the door or the metal B-pillar.
3. Stand balanced on the interior threshold: Stand up on the dry rubber floor mat or the plastic scuff plate on the door sill. Gather any loose coat tails, scarves, purse straps, or long clothing so nothing trails behind you and brushes the metal rocker panel as you jump.
4. Lock your arms tightly across your chest: Cross both arms firmly over your chest and grip your opposite shoulders (or tuck your elbows tightly against your ribs). When people jump forward, their natural reflex is to throw their arms backward for balance, crossing your arms prevents your hand from accidentally slapping the metal car door behind you as your feet hit the pavement.
5. Jump clear with both feet together: Spring outward away from the car so that your entire body is completely in the air before your feet touch the road. Focus on balance and clearance (0.5 to 1 meter / 2 to 3 feet out) rather than trying to set a long-jump record, which causes people to slip and fall backward onto the car.
6. Land on BOTH feet at the exact same instant: Keep your ankles and knees pressed side-by-side and bend your knees slightly like shock absorbers as the soles of both shoes hit the pavement simultaneously. Because both feet land in the exact same voltage ring at the exact same microsecond, there is zero voltage difference between your legs. (If you feel yourself losing balance on landing, curl into a ball and fall forward away from the car, never backward toward the vehicle.)
7. Shuffle (or hop) with both feet pressed together for at least 15 meters (50 feet):
8. The Shuffle (Recommended on pavement, gravel, ice, or uneven ground): Keep the insides of both shoes pressed tightly against each other so your feet never separate by more than a few centimeters. Slide one foot forward just 5 to 8 centimeters (2 to 3 inches) without lifting the sole off the ground, then slide the other foot up to meet it, moving like a penguin. Keeping your soles sliding on the ground with your ankles touching guarantees that both feet remain at the same voltage potential while giving you stable two-foot balance so you cannot trip and fall.
9. The Two-Foot Bunny Hop (Alternative): Hop forward with both feet locked tightly together so both shoes leave the ground and land together at the exact same time. Never hop on one foot (if you lose balance on one foot, your other foot or hand will slam down a meter away across a deadly voltage gradient).
10. Continue shuffling until you are at least 15 meters (50 feet) away from a neighborhood distribution line (or 30 to 50 meters [100 to 165 feet] away from a high-voltage transmission line).

Evacuating with infants, small children, or pets¶

ប្រសិនបើភ្លើងឆេះរថយន្តបង្ខំឱ្យអ្នកជម្លៀសជាមួយទារក ក្មេងទើបចេះដើរតេះតះ ឬឆ្កែនៅក្នុងឡាន៖ - ទារក និងកុមារតូចៗ អ្នកអាចយកតាមខ្លួនបាន៖ ដោះកូនចេញពីកៅអីរថយន្តរបស់ពួកគេនៅខាងក្នុងកាប៊ីន។ កុំ ** កុំ ** យកអ្នកផ្ទុកកៅអីរថយន្តប្លាស្ទិកធ្ងន់ចេញពីឡាន (ដែលធ្វើឱ្យវាស្ទើរតែមិនអាចលោតបាន ហើយចុះចតមានតុល្យភាពនៅលើជើងពីរដោយមិនធ្លាក់ចុះ) ។ សង្កត់កុមារឱ្យជាប់នឹងកណ្តាលទ្រូងរបស់អ្នកដោយដៃទាំងពីរ ឈរលើកម្រិតចាប់ផ្ដើម លោតឱ្យច្បាស់ជាមួយគ្នាជាឯកតាតែមួយ ចុះចតលើជើងទាំងពីរ ហើយសាប់ចម្ងាយ 15 ម៉ែត្រ (50 ហ្វីត) ខណៈពេលកំពុងកាន់កូនចុះពីដី។ - ** ក្មេងចាស់៖ ** ណែនាំកុមារដោយប្រុងប្រយ័ត្នមុនពេលបើកទ្វារ។ ឱ្យកុមារកាត់ដៃរបស់ពួកគេ លោតឱ្យច្បាស់នៅលើជើងទាំងពីរ ហើយសាប់ចេញជាមុន ខណៈពេលដែលអ្នកមើលពីខាងក្នុងកាប៊ីន ហើយបន្ទាប់មកដើរតាមពួកគេតាមផ្លូវដូចគ្នា។ - សត្វឆ្កែ និងសត្វចិញ្ចឹម៖ កុំឲ្យឆ្កែលោតចេញពីឡានដោយខ្សែក្រវាត់ ឬដើរកាត់ដីនៅជិតខ្សែភ្លើងដែលធ្លាក់ចុះ ព្រោះក្រញាំមុខ និងក្រញាំជើងបួនត្រូវដាច់ពីគ្នាពី 0.5 ទៅ 1 ម៉ែត្រ (1.5 ទៅ 3 ហ្វីត) ហើយបន្ទះបាតជើងទទេមានសំណើម ឆ្កែត្រូវឆក់ចរន្តអគ្គិសនីស្ទើរតែភ្លាមៗ។ រើសឆ្កែតូច ឬមធ្យមដាក់ក្នុងដៃរបស់អ្នក ហើយលោត និងសាប់ជាមួយពួកគេ។ ប្រសិនបើឆ្កែធំមិនអាចលើកបានទេ សូមទុកវានៅខាងក្នុងរហូតដល់នាយកដ្ឋានពន្លត់អគ្គីភ័យ និងក្រុមឧបករណ៍ប្រើប្រាស់ពន្លត់ភ្លើង។

ការប្រៀបធៀបថ្នាក់ខ្សែថាមពល វ៉ុល និងបរិមាត្រសុវត្ថិភាព¶

មិនមែនខ្សែភ្លើងខាងលើទាំងអស់មានវ៉ុលដូចគ្នា ឬត្រូវការកាំជម្លៀសដូចគ្នានោះទេ។ ប្រើតារាងយោងនេះដើម្បីកំណត់ប្រភេទបន្ទាត់ និងកំណត់បរិវេណសុវត្ថិភាពត្រឹមត្រូវ៖

សេណារីយ៉ូរថយន្តពិសេស៖ រថយន្ត EVs គ្រឿងបំប្លែង ម៉ូតូ និងរថយន្តដឹកទំនិញធុនធ្ងន់¶

ការរចនាយានយន្តផ្សេងៗគ្នាផ្លាស់ប្តូររបៀបដែលចរន្តអគ្គិសនីហូរតាមតួ និងគ្រោះថ្នាក់បន្ទាប់បន្សំដែលអ្នកត្រូវមើល៖

គ្រោះថ្នាក់កន្លែងកើតហេតុចំនួនប្រាំដែលដាក់អន្ទាក់អ្នកជួយសង្គ្រោះ និងអ្នកឈរមើល¶

Every year, well-meaning Samaritans, tow-truck operators, and even first responders are killed at downed-wire crash scenes because they overlook five invisible electrical hazards:

1. Automatic circuit reclosers (The "Dead Wire" Ambush): Most overhead distribution faults are caused by temporary tree branches brushing the wires in the wind. To prevent neighborhood-wide blackouts from minor tree taps, utility substations use automated high-voltage circuit breakers called reclosers. When a wire falls and shorts out on a car or road, the recloser trips the power off for a few seconds, making the wire stop sparking and go completely quiet, and then automatically slams 13,800 volts back down the line 2, 3, or 4 times in a row over several minutes (or until a fuse blows or a technician opens the switch). Never approach a wire just because the sparks stopped.
2. ** ផ្លូវការពារផ្លូវហាយវេដែលមានថាមពល និងរបងតំណខ្សែសង្វាក់៖ ** ផ្លូវដែក W-beam ផ្លូវហាយវេ របាំងខ្សែ ផ្លូវដែក និងខ្សែសង្វាក់ដែក ឬរបងលួសបន្លា គឺជាខ្សែលោហៈបន្តដែលលាតសន្ធឹងរាប់រយម៉ែត្រ (យ៉ាត)។ ប្រសិនបើខ្សែភ្លើងដែលធ្លាក់ចុះនោះ ធ្លាក់កាត់ផ្លូវដែកចម្ងាយ 200 ម៉ែត្រ (650 ហ្វីត) ចុះពីផ្លូវចេញពីការមើលឃើញរបស់អ្នក ផ្អៀង ឬឡើងពីលើរនាំងការពារនោះនៅកន្លែងធ្លាក់របស់អ្នកនឹងឆក់អ្នកភ្លាមៗ។ កុំប៉ះរបង ឬរបងការពារនៅជិតបង្គោលឧបករណ៍ប្រើប្រាស់ដែលខូច។
3. ផ្លូវកៅស៊ូសើម ភក់ និងប្រឡាយទឹក៖ ទឹកដែលលាយជាមួយនឹងអំបិលផ្លូវ និងកខ្វក់ នាំចរន្តអគ្គិសនីឆ្លងកាត់ផ្លូវថ្នល់ និងប្រឡាយតាមដងផ្លូវ។ កុំដើរកាត់ទឹកឈរ ឬស្មៅសើមនៅជិតខ្សែបន្ទាត់ធ្លាក់ចុះ។
4. The "wooden broomstick or rope" rescue myth: Never attempt to push or lift a downed utility wire off a car or an unconscious victim using a wooden broomstick, a wooden 2x4 board, a tree branch, a PVC pipe, or a nylon rope. Those household advice rules apply only to 120-volt indoor household appliances. At 7,200 to 34,500 volts outdoors, high-voltage electricity travels straight through microscopic moisture, sap, and surface dirt on wood, plastic, or rope, turning the broomstick into a deadly conductor and killing the rescuer instantly. Only utility linemen using laboratory-tested, fiberglass hot sticks rated for 100,000+ volts and wearing high-voltage dielectric rubber gloves and boots can move a utility line.
5. Invisible wire camouflage on night asphalt: After a storm or nighttime crash, dark aluminum and weather-coated copper wires lying flat on black wet asphalt are completely invisible in low-beam headlights. If you see a snapped utility pole, transformer sparks in the distance, or a car crashed into a roadside pole at night, stop your vehicle at least 15 to 30 meters (50 to 100 feet) back and scan the overhead pole spans with your high beams before stepping out of your own car.

សំណួរដែលគេសួរញឹកញាប់¶

ប្រភពបានពិនិត្យ¶

• Occupational Safety and Health Administration (OSHA, United States): Electrical Power Generation, Transmission, and Distribution Standard (29 CFR 1910.269 and 29 CFR 1926 Subpart V): Step and Touch Potential Hazards and Minimum Approach Distances.
• Federal Emergency Management Agency (FEMA) and U.S. Fire Administration (USFA, United States): * Emergency Vehicle and Roadway Operations Around Downed Electrical Distribution and Transmission Lines*.
• Health and Safety Executive (HSE, United Kingdom): Avoiding Danger from Overhead Power Lines (Guidance Note GS6) and Electrical Safety in Vehicle Recovery and Emergency Response.
• National Fire Protection Association (NFPA, United States): Standard for Electrical Safety in the Workplace (NFPA 70E) and Alternative Fuel Vehicles (EV) Emergency Field Guide.
• Institute of Electrical and Electronics Engineers (IEEE, International): IEEE Guide for Safety in AC Substation Grounding (IEEE Std 80): Step and Touch Voltage Equations.
• Energy Networks Association (ENA, United Kingdom and Australia): Look Up Look Live: Downed Power Line Survival, Jump and Shuffle Protocols, and Heavy Machinery Clearance Guidelines.

ការណែនាំដែលពាក់ព័ន្ធ¶

• អ្វីដែលត្រូវធ្វើបន្ទាប់ពីគ្រោះថ្នាក់ចរាចរណ៍
• Electric shock first aid
• Electric, hybrid, and hydrogen vehicle emergencies
• Lithium-ion battery fires
• Power outage at home
• Emergency phone numbers by country