Video summary

산업안전산업기사 필기 PART 01 산업재해 예방 및 안전보건교육 Chapter 01 산업재해예방 계획수립 🌟2026년 ver🌟

Main summary

Key takeaways

Educational

Main ideas / concepts covered

1) Industrial accident definitions (Industrial Safety and Health Act)

  • Industrial accident (general definition): When a person who performs labor dies, is injured, or contracts a disease as a result of work or duties, due to matters related to the work (e.g., work, construction, facilities).

  • Serious accident: An industrial accident where the severity of damage (including death) is significant or the accident results in a large number of victims, as defined by the relevant ordinance.

Critical-incident categories to memorize (3-part scheme)

The speaker emphasizes these are important for both written and practical exams and provides a mnemonic.

  • “Samyong” (middle day = major period)
    • 4th day: At least 1 death
    • “Samyong” = “2 or more injured persons”
      • Requires medical treatment for 3 months or more
      • Occurring simultaneously
    • “Pfft / splat” end: 10 or more deaths
      • Injured persons and/or occupational disease victims occurring simultaneously

The instructor: “Since these three definitions of critical damage are really important, you must memorize them.”

2) Safety management fundamentals: accident characteristics

The video introduces “fundamental characteristics” of accidents in the framework of safety management:

  • Temporality (time aspect): Accident occurrence is influenced more by time than place.
  • Contingency within necessity:
    • Accidents inevitably occur in some sense, but contingency is also involved.
    • Even if events seem random, there is still a connection where subsequent events follow strict laws.
  • Impossibility of “smoke control” / time reversal:
    • For accidents/events that have already occurred, time cannot be reversed → therefore, control actions must be forward-looking.

Laws to know (representative “laws”)

  1. Heinrich’s Law

    • Ratio: 1 : 29 : 300
    • Interpreted as a total of: 1 + 29 + 300 = 330 accidents
      • 1: serious injury or death
      • 29: minor injuries
      • 300: accidents with death outcome (per the subtitles’ phrasing)

  2. Near accident / Near miss

    • A dangerous situation where no human or material loss occurs, but it indicates a potential risk factor.

  3. Bird’s Law

    • Ratio given: 1 : 10 : 30 : 600
    • Interpreted categories (per subtitles):
      • 1: severe injury or disability
      • 10: minor accidents
      • 30: accidents without injury but involving loss
        • The speaker explains this as “loss of property… without compensation” for the “30”
      • 600: accidents without injury
    • The speaker mentions an exam check: the correct choice is “number 4” (based on the described meaning of “30”).

3) KOSIA guide (KOSHA technical guidelines) and how to use it

  • KOSIA guide / KOSIA(guide) (as described):

    • A compilation of technical matters used to improve safety and health to a higher level, not just the minimum legal standards.
    • Designed to support autonomous improvement of workplace safety and health.

  • Exam usage emphasis:

    • Said to appear consistently in both written and practical exams.
    • The speaker advises checking each item using:
      • Naver
      • Korea Occupational Safety and Health Agency (KOSHA) website

  • How it is organized (example ordering mentioned):

    • classification code → classification by field/industry → order of publication → year of revision

4) Safety and health management system: organizational structure

Meaning of safety management

  • Safety management: planned and systematic activities to protect human life and property from disasters.

The instructor frames organizational forms as a key basic element.

5) Types of safety organization (line, staff, and combined)

Three organizational types are presented, each with workplace size suitability, advantages, and disadvantages.

A) Line-line organization

  • Suitable for: small workplaces with fewer than 100 employees
  • Advantages:
    • Simple and clear chain of command
    • Quick and accurate transmission of safety instructions
  • Disadvantages:
    • Direct transmission may lead to insufficient prior safety knowledge/skills
    • Easy to place excess responsibility on the line

B) Staff-type organization

  • Suitable for: medium workplaces with 100 to less than 1,000 employees
  • Advantages:
    • Easier to accumulate safety knowledge/skills
    • Provides guidance, advice, and consulting to management
  • Disadvantages:
    • Friction between production and safety because they are treated separately:
      • production has less/no safety authority
      • production must earn money → more conflict

C) Direct line + staff organization (combined)

  • Suitable for: large-scale workplaces with more than 1,000 employees
  • Advantages:
    • Rapid, accurate transmission of instructions
    • Easier accumulation of knowledge/skills
  • Disadvantages:
    • Confusion between commands vs advice/recommendations vs participation
    • Concern about staff overreach

Practical “factory example” comparison (as stated)

  • Line-type: safety + production in one area → risk of misfire (conflict/mismanagement).
  • Staff-type: factory only issues continuous production instructions → many conflicts.
  • Line-staff combined: safety and production handled through meetings → more suitable for large scale.

6) Industrial Safety and Health Committee structure and operation

The instructor discusses the structure and operation context.

Organizational roles mentioned

  • Employer-side related structures:

    • Safety and Health Committee
    • Health management officer
    • Industrial Health Committee

  • Workplace staffing:

    • A safety manager is employed
    • The safety manager provides health/safety guidance through consultation with:
      • supervisory manager
      • health manager

Committee requirement thresholds (construction vs civil engineering)

  • For requiring an Industrial Safety and Health Committee and a Safety and Health Management Officer:

    • Construction projects: 12 billion KRW or more
    • Civil engineering projects: 15 billion KRW or more

  • For Safety and Health Management Officer (additional threshold as stated):

    • Construction projects with project value 2 billion KRW or more

7) Business types/scales required to establish the committee (examples)

The speaker notes this is directly relevant to practical exams, so “check and memorize.”

Scale example: 50+ general workers

Industries listed (as seen in subtitles):

  • Sand and gravel mining
  • Primary metal manufacturing
  • Automobile and trailer manufacturing

Scale example: 300+ regular employees (and other conditions)

  • For “service business” mentioned (episode reference unclear in subtitles):
    • If 300 or more regular employees, confirm scale requirement
    • For construction business: confirm construction cost is 12 billion won or more

8) Composition of the Industrial Safety and Health Committee (detailed list)

The instructor states practical exams include this topic.

Worker representatives (as described)

  • Three types of worker representatives (exact types omitted in subtitles)
  • Honorary industrial safety supervisors:
    • One or more, nominated by the workers’ representative
  • Up to nine workers from the relevant business:
    • Nominated by the workers’ representative

Employer-side / user committee members (as described)

  • Representative of the relevant project
  • One safety manager
  • One housing manager
  • Heads of departments within the workplace:
    • Up to nine people, designated by the business representative

Meetings frequency

  • Electrical meetings are said to be held quarterly.

9) Labor-management ratio (what to check)

  • The speaker instructs to “check that such things exist,” focusing on parts shown in blue (subtitles imply a table).
  • Repeated threshold:
    • Companies subject to installation of the labor-management quota:
      • construction projects with construction cost 12 billion won or more

10) Safety manager employment requirements and allocation

Rules are given based on number of workers and sometimes industry type.

General workplace rules

  • 50 to less than 500 general workers:
    • At least 1 safety manager
    • Industries frequently appearing in this case (examples):
      • No. 5: pulp and paper manufacturing
      • No. 9: rubber and plastic product manufacturing
  • 500 or more regular workers:
    • 2 or more safety managers

Postal and telecommunications industry (explicit thresholds)

  • 50 to less than 1,000 regular employees: at least 1
  • 1,000 or more regular employees: at least 2

Construction industry (subtitles: broad ranges; example given)

  • The speaker advises not to memorize everything, only applicable parts.
  • Example stated:
    • If construction cost is between 220 billion and less than 300 million:
      • At least 4 safety managers
      • with condition: at least 2 managers included for the period corresponding to the 15-day windows before and after the total construction period (as described)

11) Duties of the safety manager + what the safety manager must NOT do

This section is emphasized as important for exam memorization.

Duties and focus

  • Read safety manager duties carefully; focus on portions appearing in questions.
  • Risk assessment is highlighted as newly added and important (appears in “overall duties”).

Actions NOT to be performed by the safety manager (Industrial Safety and Health Act)

  1. Workplace inspections and exercising authority for guidance/measures
  2. Assistance, advice, and guidance for industrial statistics and maintenance analysis
  3. Subtitle-stated ventilation verification:
    • General ventilation and local exhaust ventilation
    • These are not checked by the safety manager
    • Must be verified by the health manager
    • Therefore the speaker says “#3” is the correct answer for a question.

12) Workplace safety inspections: frequency and purpose

  • For product/workplace checks: perform checks at least once every two days
  • Create a list to identify each risk factor
  • Suitable sectors generally include:
    • construction and manufacturing industries

13) Joint safety/health inspections for contracted projects (inspection frequency rules)

Memorize the inspection intervals:

  • At least once every two months:
    • construction, shipbuilding, boat building
  • Otherwise (other listed activities):
    • At least once per quarter

14) Drafting safety and health management regulations (practical exam mnemonic: “four points”)

The speaker says this is often included, so memorize using mnemonic tips.

Four memorization points (as stated)

Accident investigation and establishment of countermeasures must be done by the management organization in a place out of sight of the workplace.

The four categories to memorize are:

  1. Matters concerning the management organization and duties related to safety and health
  2. Matters concerning safety and health education
  3. Matters concerning workplace safety and health management
  4. Matters concerning accident investigation and the establishment of countermeasures

The speaker adds: some exams exclude health-related topics for practicality; for now, memorize these four main points.

Methodologies / instruction-like content (checklists & memorization guidance)

  • Memorize definitions and thresholds (for written & practical exams):

    • Serious accident definition emphasis
    • The “3 critical damage categories” mnemonic (“Samyong” / “Pfft” / ending “splat”)

  • Use a slide/table checking strategy:

    • “Lightly read” the left page section and “lightly check” the right page contents exist (e.g., terms like:
      • related contractors
      • safety and health diagnosis
      • work environment measurement)

  • Apply named law ratios:

    • Heinrich’s Law: 1:29:300
    • Bird’s Law: 1:10:30:600, and interpret “30” as property loss without compensation

  • Use the KOSIA guide lookup method:

    • Search Naver
    • Visit KOSHA website
    • Check each item one by one

  • Committee and safety manager rules:

    • For each workplace size/industry, check applicable thresholds rather than memorizing everything
    • Especially important for construction industry ranges

  • Inspection frequency memorization:

    • Workplace safety inspection: at least every 2 days
    • Contracted projects:
      • at least every 2 months: construction/shipbuilding/boat building
      • otherwise at least quarterly

  • Draft regulations mnemonic:

    • Memorize the four categories
    • Remember management performs accident investigation + countermeasures outside the workplace

Speakers / sources featured

  • Speaker/Instructor: Unnamed lecturer (teaches content related to “산업안전산업기사 필기 PART 01… 2026년 ver”; no personal name given in the subtitles)
  • Primary legal source named:
    • Industrial Safety and Health Act
  • Other named institutions/sources:
    • Ministry of Employment and Labor
    • Korea Occupational Safety and Health Agency (KOSHA)
    • Naver
  • Referenced theories/laws:
    • Heinrich’s Law
    • Bird’s Law

Original video