Log in to follow, share, and participate in this community. Hello Gentlemen, I am an instructor here in Brazil, and in class, electricians always complain that they cannot use the insulating glove in conjunction with the leather glove to perform tasks that require greater &ldq... As it pertains to NFPA 70E's requirement of placing a device, piece of equipment etc in a "Electrically Safe State", you turn off a breaker to a light switch or outlet. The next step is to verify via a meter that the ... We are designing to use a circuit breaker with only magnetic unit trip protection for a single fire pump (without a jockey pump).Should the FRAME of the circuit breaker meet the rated current OR... NFPA 101 requests 10.8 Lux for emergency lighting. I am just wondering if this applies to large open space too ? if we have 50m2 open plan office, do I still need to achieve the 10.8 lux or a lower lux level is requir... How often should I have my explosion proof dust collectors inspected for the powder paint booths Sammy Clayton Enviromental and Safety Administrator Newton Instrument Company 111 East "A" Street Butner, NC... So this all started by me speaking out of my ass by telling someone I think the code has a unobstructed distance requirement from the opening of junction boxes, and pulling condulets. They just accepted it, but I deci... Hello, I work in a ship yard and we're currently looking into fabricating a portable power outlet unit. Supply: 208VAC 3PH, 100A Feed: 110VAC, 1PH, Various 30A and 60A The vendor we typically buy them ... Hi all. I keep going down the RPT rabbit hole after reviewing NFPA 1, UL 1363, UL White Book, and OSHA. I have come to the conclusion the NEC is silent on RPTs. All the references above seems to say hey, yup... Hi, My question is in regards to the second paragraph of 700.16 which states: "Emergency lighting systems shall be designed and installed so that the failure of any individual lighting element, such as the bur... Question 1: Whether NFPA 130: 2017, chapter 12 requirements are applicable to Trainways (Metro rail Viaduct/tunnels) as mentioned under clause 12.1.1. Please confirm? Question 2: As per NFPA 130: 201... I thought that I would open up a discussion where viewers of this thread could share what they perceive to be the greatest electrical safety concern that they encounter or perhaps the most frustrating electrical safet... i am going to active the deluge system with it and its inside Say for example, you have a 120/240 V, 2 pole, 20 A breaker. Does the NEC allow this breaker to serve 2 separate 120 V circuits? I have had a question for some time about operating molded case circuit breakers with or without PPE. NFPA 70E states in table 130.5 that under normal conditions it is a low risk of exposure to an arc flash.... Been having some discussions with other people in the trade, and the subject of Service Disconnects came up in regards to OCP and it's location for dwellings or in general. Some have mentioned that the first OCP devic... For those who were helpful on this post, Thank You. Chiefns830 managed to drive me away. Nothing that I read indicated that homeowners were not welcome to ask electrical questions. I have a system where we are supplying a skid with 3 VFD/motors. The VFD/motors are each wired to there own fused safety disconnect. The skid also has a fused disconnect for power supply to a 480/120 transformer... Using ICC 2012 and NFPA 72 2010 edition, Given an occupancy that is not required to have a fire alarm by 907.2.4 and is sprinklered per 903.2.4 thus contains a dedicated function fire alarm unit for water flow ... Does Fire Sprinkler riser's water flow switch initiate elevator emergency recall? In NFPA 72 "Table A.18.104.22.168" Typical Input/Output Matrix" shows water flow switch on first or second floor initiate elevator emer... Hi, Any one tell me the NFPA allowed sprinkler system in celling.