Document ID: chunk:federal_register_of_legislation:F2016L00419:body:0:p13
Version: federal_register_of_legislation:F2016L00419
Segment Type: other
Provision Reference: 
Character Range: 32543–35487

A worker will not be aware of a magnetic field hazard unless a heart pacemaker or other device is behaving irregularly.
Electromagnetic fields can also occur wherever power is being generated and near transmission lines. Before work near these facilities begins, you should check with the electricity supply company to make sure work will not affect the supply of power or if there are any special precautions welders need to take when working in those areas.

Control measures
    * Use barriers to isolate people who are not directly involved in the welding process.
    * Use signs indicating there are strong electromagnetic fields should be used to alert people
      to risks.
    * Workers should not stand close to the power source or drape the welding cable around their body.
    * Workers with pacemakers or other susceptible devices should substitute work that involves exposure to electromagnetic fields for another type of welding process, such as performing oxy-fuel welding instead of electric arc welding. Seek medical advice before exposing a worker wearing such a device to welding related electromagnetic fields.

3.4 Fire and explosion

Regulation 52: A person conducting a business or undertaking must manage risks to health and safety associated with ignition sources in a hazardous atmosphere at the workplace that are not part of a deliberate workplace process or activity.
Regulation 53: A person conducting a business or undertaking must ensure that flammable or combustible substances kept at the workplace are kept at the lowest practicable quantity.

Welding generates heat, flames and sparks—all of which are sources of ignition. When combined with sources of fuel and oxygen, sources of ignition present a significant risk of fire and explosion.
You must manage risks to health and safety associated with an ignition source in a hazardous atmosphere. This includes identifying all sources of ignition, such as other processes associated with welding, for example grinding which can also generate heat, flames and sparks.
Common sources of fuel that can be found in workplaces include flammable and combustible materials such as, flammable gases, (for example, acetylene, hydrogen, methane-natural gas), liquefied petroleum gas (for example, barbeque gas), flammable liquids (for example, mineral turpentine, petrol), combustible liquids (for example, oils) and materials such as wood, leaves, cardboard boxes and flammable metal or self-burning dusts. Neighbouring properties may have containers of fuel, flammable liquids and dried grass or leaves which also can present a hazard
to your workplace if these sources ignite.
The risk of fire and explosion could be increased by exposure to an oxygen rich atmosphere
at your workplace. Fires in oxygen rich atmospheres are very difficult to extinguish. When
oxygen comes in contact with oil, grease, other hydrocarbons or oil based substances, it can spontaneously