OHS Code

Published Date: July 01, 2009
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Part 1 Definitions and General Application

Section 1 Definitions


hand expose zone” means the strip of land

(a) 1 metre wide on each side of the locate marks for a buried facility other than a high pressure pipeline, or

(b) 5 metres wide on each side of the locate marks for a high pressure pipeline;

hand tool” means hand held equipment that depends on the energy of the worker for its direct effect and it does not have a pneumatic, hydraulic, electrical or chemical energy source for its operation;

handling” when used in respect of explosives includes preparing, loading, firing, burning or destroying explosives or detonators;

harmful substance” means a substance that, because of its properties, application, or presence, creates or could create a danger, including a chemical or biological hazard, to the health and safety of a worker exposed to it;

hazard” means a situation, condition or thing that may be dangerous to the safety or health of workers;

hazard assessment” means an assessment made in accordance with section 7 or 21;

hazard information” means information on the correct and safe use, storage, handling and manufacture of a controlled product, including information relating to its toxicological properties;

hazardous energy” in Part 15 means electrical, mechanical, hydraulic, pneumatic, chemical, nuclear, thermal, gravitational, or any other form of energy that could cause injury due to the unintended motion, energizing, start-up or release of such stored or residual energy in machinery, equipment, piping, pipelines, or process systems;

hazardous location” means a place where fire or explosion hazards may exist due to flammable gases or vapours, flammable or combustible liquids, combustible dust or ignitable fibres or flyings, as described in the Canadian Electrical Code;

hazardous waste” means a controlled product that is intended for disposal, or is sold for recycling or recovery;

health care facility” means a hospital, medical clinic or physician’s office that can dispense emergency medical treatment during the time the workers are at the work site;

heavy duty scaffold” means a scaffold that

(a) is designed to support the equivalent of an evenly distributed load of more than 122 kilograms per square metre but not more than 367 kilograms per square metre, and

(b) has planks with a span of not more than 2.3 metres;

high hazard work” means work described in Schedule 2, Table 2;

high pressure pipeline” means a pipeline operating at a pressure of 700 kilopascals or greater;

hoist” means equipment that is designed to lift and lower loads;

horizontal lifeline system” means a system composed of a synthetic or wire rope, secured horizontally between 2 or more anchor points, to which a worker attaches a personal fall arrest system or travel restraint system;

hot tap” means a process of penetrating through the pressure-containing barrier of a pipeline, line, piping system, tank, vessel, pump casing, compressor casing or similar facility that has not been totally isolated, depressurized, purged and cleaned;

hot work” means work in which a flame is used or sparks or other sources of ignition may be produced, including

(a) cutting, welding, burning, air gouging, riveting, drilling, grinding, and chipping,

(b) using electrical equipment not classified for use in a hazardous location, and

(c) introducing a combustion engine to a work process;

hours of darkness” means the period from 30 minutes after sunset to 30 minutes before sunrise, or any time when, because of insufficient light or unfavourable atmospheric conditions, persons or vehicles cannot be seen at a distance of 150 metres;