UL美标电工管 3/8英寸

UL美标金属软管， UL美标电工管  
(RWS Flexible Metal Conduit)   

Steel Flexible Metal Conduit.  High Strength Steel Strip.   
UL Recognized Component in 5/16".  UL Listed in 3/8" through 2".   
CSA Certified for Trade Sizes 5/16" and 3/8" Available Upon Request.   
 

                                                                                        

APPLICATIONS 应用：
RWS (Reduced Wall Steel) Flexible Metal Conduit is suitable for the following installations: 
薄壁型UL金属软管适用于以下安装环境:
? Environmental air-handling spaces per NEC? 300.22(C) 空调系统布线保护 
? Power and lighting branch circuit conductors and cables for connecting receptacles, luminaries, equipment,  office partitions, etc. 电力, 照明, 办公区域的布线保护 
? Metal raceway for wires and cables per NEC? (ANSI/NFPA-70) Article 348
赛道布线保护
? Motor feeder, branch, and control circuit conductors and cables
马达控制线路保护
? Class 1, Class 2, Class 3 Remote-control, **ing, and power-limited circuit conductors and cables
远程控制、信号线路保护
? Fire alarm system co nductors and cables of power-limited or non-power-limited fire alarm circuits
火警系统线路保护
? Voice, data, communications and video cables including CATV and optical fiber cables
语音、数据、通讯、视频、电视、光纤线路保护
? Concealed or exposed installations per NEC? Article 348 and the applicable NEC? provisions 
密封防爆环境的线路保护 
? Elevators, hoist ways, and escalators per NEC? 620.21  电梯、自动扶梯的线路保护 
? As a grounding conductor for lengths up to 6 feet (20A max) as per 2011 NEC? 250.118(5)
? Electric signs and outline lighting per NEC? 600.7, 600.31 (1000 volts or less), and 600.32 (>1000 volts) 户外招牌及照明的线路保护 
? Hazardous location, Class 1, Div. 2, for flexible connectors only per 2011 NEC? 501.10(B)(2) & 501.30(B) 危险场所的线路保护 
? UL 1, 2, & 3 Hour Through Penetration Fire stop  Systems: C-AJ-1462, C-AJ-1463, C-AJ-1464, W-L-1308, andW-L-1309 焊接灭火系统的线路保护 


CONSTRUCTION and SIZE 结构及尺寸：
RWS flexible metal conduit is manufactured with a galvanized, corrosion resistant, high strength steel alloy. The metal strip is helically formed into a continuously interlocked flexible metal conduit that can withstand impact and crushing forces. UL 金属软管 (薄壁型) 由镀锌、防腐、高强度的钢带制成， 钢带采用波浪自锁型结构，具有很强的的机械抗压抗拉保护性能。 

Trade Size (Inches)	Approximate Weight (lbs/100 ft)	Inner Diameter Min./Max.(mm)	Outer Diameter Min./Max. (mm)	Approx. Bend Radius* (Inches)	Standard Coil Length (feet)	Standard Reel Length (feet)
  5/16 *	16	7.92~8.32	11.94~12.95	3.5	100	1000
  3/8  *	18	9.52~9.96	14.22~15.49	4	100 / 250	1000
  9/16 *	23	13.89~14.61	17.90~18.67	4	100 / 250	1000
  1/2  *	27	15.88~16.38	21.84~23.37	4	100	500 / 1000
  3/4  *	34.5	20.62~21.21	26.54~28.07	5	100	500 / 1000
1 *	57	25.40~26.42	33.02~35.05	6	50	400
1--1/4 *	68	31.75~33.02	39.37~41.40	8	50	250
1--1/2 *	78	38.10~40.01	46.99~49.53	10	25	150
2 *	133	50.80~52.83	59.69~62.23	12	25	100
2--1/2 *	165	> 63.5	72.64~77.72	15	25	100
3 *	197	> 76.2	85.34~90.42	18	25	100
3--1/2 *	231	> 88.90	98.04~103.12	21	25	100
4 *	264	> 101.6	110.72~115.82	24	25	100

* Trade size 5/16" is provided as UL Recognized construction. 
** Trade sizes 3-1/2" and 4" are non-UL. 
Minimum bend radius based on NEC Chapter 9 (other bends). 

FEATURES 产品特性：
? Provides mechanical protection for conductors and cable 
 为线缆提供机械保护
? For use with listed connectors intended for NEC Type FMC (Flexible Metal Conduit) 
可配接符合UL规范的接头
? Smooth interior for easy wire pulling
内壁光滑，适于穿线
? High strength steel construction
高强度钢铁结构 
? Hot-dipped, heavy zinc coating for rust/corrosion resistance
热镀锌层保护免受腐蚀侵害
? Superior crush proof qualities
**强抗压 
? Built in flexibility for simplified positioning
柔软灵活，方便布线安装

STANDARDS & REFERENCES 标准参考： 
? UL Listed per UL 1, Standard for Safety for Flexible Metal Conduit, ANSI/UL-1 for 3/8" through 3"
? CSA Certified per CSA 22.2 No. 56 per Canadian Electrical Code C22.1 Section 12-1000 for 5/16" and 3/8"
trade sizes only
? Meets federal specification WW-C-566c
? NEC Type Designation - Article 348, Type FMC (flexible metal conduit)