Conduit Seal (Chico) Removal 2 - Eng-Tips
2004年7月14日 · I couldn't find anything in the literature on CCH's web site about seal removal. My question applies to conventional seals; it would appear to be essentially impossible to remove an epoxy SpeedSeal based on CCH's video and support documentation.
Inspection/Testing of Conduit Seals (aka Seal-Offs) - Eng-Tips
2004年7月14日 · Even at differences in pressure across the seal equivalent to a few inches of water, there may be a slow passage of gas or vapor through a seal and through conductors passing through the seal. See 501.15(E)(2). Temperature extremes and highly corrosive liquids and vapors can affect the ability of seals to perform their intended function.
Flexible Conduit (Seal-Tite) - IEEE (electrical) Code Issues
2002年2月1日 · Is Seal-Tite approved for use in class 1, DIV 1 or class 1, DIV 2 areas? E.G. connecting ridgid conduit to a motor with the seal at the motor.
conduit practices in class 1, div 2 areas 1 - Eng-Tips
2002年6月6日 · If so, then I have an alternate question. I have read a reply to someone's question concerning seal-tite and EMT conduit stating that EMT could not be used, and that seal-tite was limited to 6 feet for grounding purposes. If I use seals and supply a sufficient ground wire, then what is in between shouldn't matter, except for physical protection.
NEC conduit seal requirements - IEEE (electrical) Code Issues
2010年11月23日 · NEC (2008) 501.1(A)(3) "Where two or more explosionproof enclosures for which conduit seals are required under 501.15(A)(1) are connected by nipples or runs of conduit not more than 36" long, a single conduit seal in each such nipple connection of run of conduit shall be considered sufficient if located not more than 18" from either enclosure."
Conduit to Cable Seal? - Mechanical engineering general …
2002年12月24日 · Case in point is that the electrical codes do not consider conduit as "pressure piping", yet that appears to be the focus of your question. If it is pressurized then you need to conform to the piping codes such as B31.3 (as a minimum) and have provision for safety relief in the event of fire, etc.
Flexible Conduit (Seal-Tite) - IEEE (electrical) Code Issues - Eng-Tips
2002年2月1日 · RE: Flexible Conduit (Seal-Tite) resqcapt19 (Electrical) 4 Feb 02 11:20 Liquid Tight Fexible Metallic Conduit (sealtight) is permitted in Class 1 Division 2 areas.
Explosive area question - Electric power & transmission ... - Eng-Tips
2005年8月16日 · In the conduit between the j-box and your motor controller install the conduit seal fitting on the field wiring which is not replaced or modified very often, if at all. The field wiring will need to be tin-plated due to the H2S typically present in the wet well.
Other conduit sealing compounds? - IEEE (electrical) Code Issues
2012年6月7日 · In other words, if a compound manufacturer claims their product is listed for all seals, it may be, but the seal fitting itself still requires the proprietary sealing compound for the overall seal to be compliant. On the other hand, certain boundary seals for Class I, Division 2 [501.15(B)(2)]aren’t required to be explosionproof (or listed).
Interpretation of NEC Code for Conduit Seals in Div 2 areas 1
2014年5月25日 · As a European, I need a little advice on the interpretation of the NEC code for conduit installations on explosionproof equipment installed in Class 1 Division 2 areas: NEC 501.15(B) states the following:-----(B) Conduit Seals, Class I, Division 2 locations, conduit seals shall be located in accordance with 501.15(B)(1) and (B)(2).