21-19 NONINCENDIVE EQUIPMENT (CLASS I, DIVISION 2) - ARTICLE 100, 500.7(F), (G), AND (H)
HT E 32 Intrinsical & Nonincendive Systems & Circuits
Class 1, Division 2, DO and SS Sensors
21-34 REQUIREMENTS FOR SEALS AND DRAINS (CLASS I, DIVISIONS 1 AND 2) - 501.15
21-18 INTRINSICALLY SAFE EQUIPMENT (CLASS I, DIVISION 1) - ARTICLE 100 AND 500.7(E)
CMGT 31040 - Industrial and Hazardous Wiring Methods
21-21 CLASS I, DIVISION 1WIRING METHODS - 501.10(A)(1)(1) THRU (7)
21-55 (a) CLASS I OR II, DIVISION 2 LOCATIONS - 516.5(D)(2) AND FIGURE 516.5(D)(2)
21-55 (b) CLASS I OR II, DIVISION 2 LOCATIONS - 516.5(D)(2) AND FIGURE 516.5(D)(2)
21-24 REQUIREMENTS FOR SWITCHES, CIRCUIT BREAKERS, MOTOR CONTROLLERS, AND FUSES - 501.115
Fundamentals of Class I, Division 2 - Hazardous Areas!
21-45 WIRING AND EQUIPMENT INSTALLED ABOVE CLASS I LOCATIONS - 511.7(A) AND (B)
21-23 WIRING METHODS USED FOR LIMITED FLEXIBILITY (CLASS I, DIVISION 2) - 501.10(B)(2)(1) THRU (7)
21-30 USING FLEXIBLE CORD IN CLASS I, DIVISION 1 AND 2 AREAS - 501.140
21-36 Class I, Division 1 Boundary - 502.15(A)(4), Ex. 1 & 50115(B)(2) Ex. 1
INCREASED SAFETY,NON-SPARKING/INCENDIVE&OILIMMERSED EQUPT.: DESIGN,APPLICATION &TECHNICAL DETAILS
Process Wiring in Hazardous Locations AM Session Sept. 3, 2020
Fundamentals of Class II, Division 2 - Hazardous Areas!
21-32 WIRING METHODS(CLASS II, DIVISION 1) - 502.10(A)(1)(1), (A)(2), AND (A)(3)
21-37 CABLE SEALS - 501.15(D)(1), (D)(2) & (D)(3)
