Explosion-proof Electrical Safety Standards

Explosion-proof Electrical Safety Standards

Hazardous Area Classification

1. Zone 0

   • Continuous presence of explosive gas atmosphere
   • Requires highest grade explosion-proof equipment

2. Zone 1

   • Occasional presence of explosive gas possible
   • Requires medium-grade explosion protection

3. Zone 2

   • Explosive gas present only under abnormal conditions
   • Basic explosion protection requirements

Safety Operation Requirements

• Must use certified explosion-proof electrical equipment
• Strictly follow area explosion protection grade requirements
• Conduct environmental gas detection before operation
• Prohibited use of non-explosion-proof tools

Equipment Selection Principles

1. Select based on hazardous area classification
2. Comply with national explosion-proof standards
3. Regular explosion-proof performance testing