Filmclusive Encyclopedia
Safety
Film production roles, equipment, workflows, and terms.
Free fall
The portion of a fall before a personal fall-arrest system begins applying arresting force.
Free-fall distance
The vertical displacement from the start of a fall until the arrest system begins to engage.
Frostbite
A freezing injury affecting skin and deeper tissues during severe cold exposure.
Fuel storage
The approved containment, labeling, separation, and handling of flammable fuel for production equipment.
Fuse
An overcurrent device whose element melts and opens a circuit when current exceeds its design response.
Generator bonding
The grounding and neutral-bond arrangement applied to a portable generating system.
Generator load bank
Equipment applying a controlled electrical load to test or stabilize generator performance.
Generator safety
Controls for fuel, exhaust, grounding, ventilation, distribution, noise, and qualified operation of generators.
GFCI
A ground-fault circuit interrupter that disconnects power when it detects an imbalance indicating leakage.
Glass handling
Safe transport, installation, marking, removal, and disposal practices for real or simulated sheet glass.
Ground fault
An unintended electrical path to ground that can create shock, fire, or equipment hazards.
Ground rod
A driven electrode forming one component of an approved grounding-electrode system.
Ground-support system
A freestanding structure supporting entertainment truss or equipment from the ground.
Guardrail system
A barrier system erected along an exposed side to prevent falls to a lower level.
Guardrail system
A physical edge-protection system designed to prevent people from falling from an elevated surface.
Hazard
A source or condition with the potential to cause injury, illness, damage, or loss.
Hazard communication
The system for classifying chemical hazards and communicating them through labels, safety data sheets, and training.
Hazard elimination
Removal of a hazard so the associated exposure no longer exists.
Hazard exposure
Contact with or proximity to a hazard at a dose, duration, route, or frequency capable of causing harm.
Hazard substitution
Replacement of a hazardous process, material, or condition with a less hazardous alternative.
Hearing conservation
A program of exposure assessment, controls, protection, and training for high-noise work.
Hearing protection
Equipment and work controls used to reduce harmful exposure to high sound levels or impulse noise.
Hearing protection rating
A laboratory-derived attenuation rating used to estimate, not guarantee, workplace hearing protection.
Heat acclimatization
A gradual physiological adaptation developed through controlled exposure to hot working conditions.
Heat cramps
Painful muscle spasms associated with exertion, heat exposure, and fluid or electrolyte loss.
Heat exhaustion
A heat illness involving heavy sweating, weakness, dizziness, nausea, or similar symptoms.
Heat index
A calculated apparent-temperature measure combining air temperature and relative humidity.
Heat stress
A harmful response to environmental heat that requires planning, hydration, breaks, monitoring, and escalation.
Heat stroke
A life-threatening heat emergency involving central nervous system dysfunction and dangerous overheating.
Heat-illness prevention
A program for recognizing and controlling environmental, workload, clothing, and individual heat risks.
Helicopter safety
Aircraft controls specific to rotorcraft operations, rotor hazards, downwash, landing zones, and aerial filming.
HEPA filter
A high-efficiency particulate air filter meeting a defined particle-removal performance.
Hierarchy of controls
A prevention framework prioritizing elimination, substitution, engineering, and administrative controls before PPE.
High-wind warning
A forecast or observed condition indicating winds may threaten people, structures, equipment, or operations.
Hoist motor controller
A control system that commands one or more powered entertainment hoists to move or hold loads.
Horizontal lifeline
An engineered line between anchorages providing traveling attachment along a horizontal work area.
Hot work
Work such as welding, cutting, brazing, or grinding that can create flame, heat, or ignition-producing sparks.
Hot-work permit
Documented authorization for temporary flame, spark, or heat-producing work under defined fire controls.
Hydration plan
A worksite arrangement that provides accessible fluids and prompts regular drinking appropriate to heat and exertion.
Hypothermia
A dangerous drop in core body temperature caused by cold, wetness, wind, or immersion.
IDLH
An atmosphere posing immediate threat to life, irreversible health effects, or escape capability.
Incident report
A timely factual record of an injury, illness, damage event, exposure, or other safety incident.
Insect hazard
Risk from bites, stings, infestation, or disease-bearing insects at a work location.
Interrupting rating
The maximum fault current an overcurrent device is designed to interrupt safely at a specified voltage.
Job hazard analysis
A task-focused process that breaks work into steps, identifies hazards, and establishes controls before execution.
Kilowatt
A unit of electric power equal to one thousand watts.
Ladder safety
The selection, inspection, setup, climbing, and storage practices that reduce falls from ladders.
Ladder stand
A mobile, fixed-height self-supporting ladder with wide treads arranged like stairs.
Leading edge
An unprotected edge that changes location as a walking or working surface is created or extended.
Lightning safety
The monitoring and response plan used to protect people from lightning during outdoor work or events.
Listed equipment
Equipment included in a recognized certification organization’s published list for specified conditions of use.
Load cell
A force-sensing device used to measure tension or load in a rigging or structural system.
Load rating
The manufacturer or engineer-stated maximum load a component or structure may safely support under defined conditions.
Lockdown
A security action restricting movement and access during an immediate external or internal threat.
Lockout/tagout
A control procedure that isolates hazardous energy and identifies equipment before service or maintenance.
Lost-child procedure
A privacy-conscious process for protecting and reuniting a separated child and guardian.
Lower explosive limit
The minimum concentration of a flammable gas or vapor in air capable of propagating flame.
Manual chain hoist
A hand-operated lifting device using load chain and a geared mechanism.
Medical plan
A written arrangement for first aid, medical response, transport, communication, and escalation during production.
Midrail
The intermediate member of a guardrail system that reduces openings below the top rail.
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