Rescuing Without Becoming the Second Victim

Why this matters

When NIOSH studied confined space deaths, it found that would-be rescuers made up a majority of them, around 60 percent in its widely cited analysis. Those were not careless people. They were coworkers, often a relative or a friend, who saw someone go down and did the decent thing, and the decent thing killed them. Trenches and electrical contacts produce the same pattern: one victim becomes two because the second person entered the same hazard that had just proven itself on the first.

This card is about the one decision that separates a rescue from a second fatality. It is not rescue training. Hands-on first-aid and CPR certification is what makes a responder, and technical rescue (rope, confined space, trench) is a fire-department or specially trained team's job. What follows is what an untrained-for-rescue tech does in the minutes before they arrive.

Why the rescuer dies

The hazard did not change because someone is in trouble. That sounds obvious and is the whole lesson. Each hazard has a specific reason the second person fares no better than the first, and often worse:

• Bad air does not announce itself. Hydrogen sulfide, carbon dioxide, refrigerant and low oxygen can drop a person in a breath or two. The rescuer is in a hurry, breathing hard, and climbing down into the lowest, worst air in the space. Holding your breath buys seconds, not the minutes it takes to lift an unconscious adult up a ladder.
• A trench that collapsed once is primed to collapse again. The first slide leaves a fresh vertical face with nothing holding it. Someone who jumps in to dig a coworker out is standing in the same unsupported cut, now with a pile of loose spoil at the edge adding weight. OSHA notes that a cubic yard of soil can weigh about as much as a car.
• A person in contact with a live conductor is part of the circuit. Grab them and you are too. Household 120 volt current can hold a person's hand closed on a conductor, so "pull him off" means taking the same path through your own chest.

The common thread is time pressure creating a decision nobody would make calmly. The fix is to have made the decision in advance.

The rule

Do not enter. Call. Control the hazard from outside. Wait for people with equipment.

The gate that sorts every situation is one question: can I remove or control the hazard from where I am standing, without entering it?

• Yes: do that first, then go to the person. A breaker can be opened from the panel. A running engine can be shut off from outside its exhaust. A blower can push fresh air in through an opening.
• No: you do not go in. You call 911, you do whatever you can from outside, and you wait.

The rule is not "never help." Most of the helping is done from outside: the call, the shut-off, the ventilation, the retrieval line, keeping everyone else out, and having CPR and the AED ready the moment the person is brought out (see related: First Aid + AED on the Jobsite).

Confined spaces, and why the reading at the top lies

A confined space in OSHA's sense, 29 CFR 1910.146 for general industry and Subpart AA of 29 CFR 1926 for construction, is one large enough to enter, with limited entry or exit, and not designed for continuous occupancy. In residential work that includes septic tanks and pump chambers, sewer manholes, utility vaults, some crawlspaces and equipment pits. A permit-required confined space is one with a serious hazard such as a hazardous atmosphere. The library's confined space cards cover entry, permits and attendant duties; the part that matters here is what you can know from the top.

   open lid - fresh air comes in here
  ====+        +====  grade
      |        |   <- partner stands here; a monitor
      |  air   |      held at the lid reads fine
      |  mixes |
      |........|   <- heavier gases settle and layer
      | H2S    |      sulfide, carbon dioxide,
      | CO2    |      refrigerant, low oxygen
      | low O2 |   <- the floor, where he is lying
      +--------+

A meter at the lid samples the best air in the space. The person lying on the floor is in the worst. Only a sampling probe lowered to each level tells you what is down there, and even a good reading does not license an untrained, unequipped entry.

Where a shop does permit entry, 1910.146(k) requires the employer to arrange rescue and emergency services before the entry happens and, for most entries, a retrieval system (a harness on the entrant and a line to a mechanical device or fixed point outside) so the attendant can pull the entrant out without going in, unless the standard's conditions for leaving it off are met. That is non-entry rescue, and it is the only kind a partner at the top should attempt.

Trenches

A trench 5 feet or deeper needs a protective system (sloping, shoring or a shield) under 29 CFR 1926.652(a)(1), unless it is in stable rock; a shallower one needs a competent person to judge that there is no cave-in potential. When a trench does collapse on someone:

• Nobody enters an unprotected trench to dig. Not to the shoulders, not "just to get his face clear."
• Call 911 and say "trench collapse, person buried to the" chest, waist, whatever you see. That phrase brings a technical rescue team; "man stuck in a hole" may not.
• Shut down equipment near the edge, including the excavator and any running truck, because vibration loosens the walls.
• Keep everyone and everything back from the lip. Weight at the edge, including people, is what brings the next slide.
• If the person's head is clear, talk to them, from the edge, lying down to spread your weight if you must get close.

Electrical contact

The electrical case is where the gate most often says yes, because power can usually be cut from somewhere else.

• Household or branch circuit: open the breaker, pull the plug, or throw the main disconnect, then touch the person. Some lay first-aid guidance allows pushing a person off a low-voltage household source with a dry non-conductive object when the power cannot be cut quickly; treat it as a last resort, and never on a utility or overhead line.
• Overhead or downed utility line, or anything on the pole side of the meter: you cannot de-energize it. Stay back, utilities commonly say at least 35 feet, assume the ground around it is energized, call 911 and the utility, and keep others back. A person in contact with a utility line is the fire department's and the utility's rescue.

What happens after the person is clear of the source belongs to its own card (see related: Electrical Shock First Response).

Worked example: one gate, two outcomes

Same shop, same week, two calls where a helper goes down. The gate decides both.

Case 1, the pump chamber. At a house with a septic system, a tech named Sam climbs down the ladder into a 6-foot-deep pump chamber to free a stuck float. He is not wearing a harness and nobody tested the air; this entry should never have happened. His partner Jordan, at the lid, sees him slump against the wall at the bottom.

Can Jordan control the hazard from outside? He cannot see the atmosphere, cannot switch it off, and cannot lift Sam without a line already attached to him. The answer is no.

• Second 0 to 30. Jordan stops at the lid. He shouts to the homeowner to stay back and keep the children inside.
• Minute 1. He calls 911: "Confined space, man down and unresponsive at the bottom of a septic pump chamber, about 6 feet deep, possible sewer gas, he has no harness on, nobody else is in." He gives the address and says he will be standing by the tank in the side yard.
• Minute 2 to 4. The van carries a blower with a duct; he runs it at the lid blowing in, which is ventilation from outside. He keeps talking to Sam by name. He does not lean his head into the opening.
• Minute 4 onward. He calls the office, which sends a second person to the street to wave in the fire engine, and he notes the time Sam went down so responders know how long he has been in the air.
• Minute 9. The fire company arrives, meters the chamber, enters with breathing air and pulls Sam out. Jordan has the AED and the kit at the tank edge.

Had Jordan gone down the ladder, the fire company would have arrived to two unresponsive men and a homeowner on the phone, with the second rescue harder than the first.

Case 2, the garage. Two days later an apprentice, Kim, on a stepladder in a customer's garage, grips a cable on an opener circuit that someone had left energized, and freezes on it. The lead, Pat, sees her rigid, still holding the cable.

Can Pat control the hazard from outside? The panel is on the garage wall 15 feet away. The answer is yes. Pat does not touch Kim. He opens the breaker that the opener's receptacle is on, sees her hand release, and only then steadies the ladder and helps her down. She is awake but shaky; Pat calls 911 anyway, since current crossed her body, and the shock card takes over from there.

Same rule, opposite outcome: in the garage the hazard had an off switch Pat could reach; in the pit it did not. And note what both cases share. In each, the decision was made in the first five seconds, before the urge to grab took over, and both partners had been told the rule before the day it mattered.

What waiting looks like

Waiting is not doing nothing. While responders are on the way:

• Keep the count right. Make sure nobody else, including a customer, a neighbor or a second tech arriving on site, goes in. The third victim usually arrives while everyone is looking at the first two.
• Note the times: when the person went down, when you called, what you did. Responders use it and so does the later incident record (see related: Accident and Incident Reporting SOP).
• Stage the equipment at the edge, not inside: AED, kit, any retrieval line, a light.
• Meet the responders with a person at the street who can lead them to the right door, tank or trench (see related: Calling 911 From a Job Site So They Find You).
• If you work alone, all of this falls on one phone, which is why remote and solo work need their own plan (see related: Working Alone: Staying Safe When No One Is Watching).

References

• NIOSH, preventing occupational fatalities in confined spaces (rescuer fatality findings)
• OSHA, Permit-Required Confined Spaces, 29 CFR 1910.146 (rescue and retrieval at (k)); Confined Spaces in Construction, 29 CFR 1926 Subpart AA
• OSHA, Excavations, 29 CFR 1926.652 (protective systems)
• See related: Confined Space Entry (OSHA 1910.146); What a Confined Space Permit Changes About Your Day; Why a Sewer Is a Confined Space and What That Changes
• See related: Electrical Shock First Response; Inhalation Exposure First Response; The Coworker Who Went In After Him