Why should flammable substances be removed or approved before starting welding?

Removing or ensuring approval for flammable substances before starting welding is crucial primarily to prevent fires and explosions. Welding processes generate significant heat and sparks, which can ignite nearby flammable materials, leading to devastating consequences that put both lives and property at risk.

By eliminating these hazards beforehand, a safer working environment is created, which is a fundamental aspect of welding safety protocols. This precaution not only protects the welder and surrounding personnel but also safeguards equipment and the facility itself from catastrophic damage. The focus is on recognizing and managing the inherent risks associated with welding activities, highlighting the importance of safety measures in preventing potentially life-threatening situations.