21-23 WIRING METHODS USED FOR LIMITED FLEXIBILITY (CLASS I, DIVISION 2) - 501.10(B)(2)(1) THRU (7)
21-66 WIRING METHODS FOR CLASS I, ZONE 0, 1, AND 2 LOCATIONS - 505.15(A) THRU (C)
21-30 USING FLEXIBLE CORD IN CLASS I, DIVISION 1 AND 2 AREAS - 501.140
21-21 CLASS I, DIVISION 1WIRING METHODS - 501.10(A)(1)(1) THRU (7)
Fundamentals of Class I, Division 2 - Hazardous Areas!
CMGT 31040 - Industrial and Hazardous Wiring Methods
21-34 REQUIREMENTS FOR SEALS AND DRAINS (CLASS I, DIVISIONS 1 AND 2) - 501.15
502.10 Wiring Methods Class II Locations
21-45 WIRING AND EQUIPMENT INSTALLED ABOVE CLASS I LOCATIONS - 511.7(A) AND (B)
21-35 ENTERING ENCLOSURES - 502.15(B)(1)
Class 1, Division 2, DO and SS Sensors
21-37 CABLE SEALS - 501.15(D)(1), (D)(2) & (D)(3)
21-55 (a) CLASS I OR II, DIVISION 2 LOCATIONS - 516.5(D)(2) AND FIGURE 516.5(D)(2)
501.10(A)(1)(6)
Class 1 Div 2 Project 1
Hazardous location wiring methods - L3 D7 LT2
21-55 (c) CLASS I OR II, DIVISION 2 LOCATIONS - 516.5(D)(2) AND FIGURE 516.5(D)(2)
21-43 PROCESS SEALING - 501.17
21-8 (b) CLASS I, DIVISION 2 - 500.5(B)(2)
21-47 AIRCRAFT HANGARS - ARTICLE 513 & 513.7(E)
