Re: [PSES] power strip details

16A/250V is the normal running current/voltage rating of general purpose Schuko sockets and plugs in Europe (and sometimes elsewhere). One of the main reasons for the differences in allowable currents from mains outlets (and thus from connected power strips) is the differences in the

Re: [PSES] power strip details

Yeah, I just bring my little dumb 1 to 3 adapter. Even that's not really needed because everything but the laptop is USB which can plug into the laptop with its umpteen USB ports. -Dave From: Kunde, Brian [mailto:brian_ku...@lecotc.com] Sent: Friday, September 15, 2017 8:44 AM To:

Re: [PSES] power strip details

Pete, Before last year's TC108 meeting in Frankfurt, I purchased a German Schucko European Power Strip from Amazon. It had 3 AC receptacles and 2 USB outputs. Its ratings are: "Maximum Charge: 3680W,16A/250V~" Don Gies ddg...@verizon.net (732)

Re: [PSES] power strip details

Yes, the marking on these is not well-formatted. The three numbers are *independent* limits, the 3680 W being 16 A at 230 V, but the strip could be used on supplies up to 250 V as long as neither of the other limits was exceeded. Better would be 'Maximum ratings: 16 A, 250 V, 3680 W' With best

Re: [PSES] power strip details

This is slightly off topic but you might find this interesting. People are too smart for their own good. When Yanks travel to Europe, they bring along their phone chargers, computer chargers, notepad chargers, razer chargers, etc., all of which will operate at either 115Vac or 230Vac these

Re: [PSES] power strip details

Re para 2 - the NA 115v nominal surge protectors almost certainly aren't voltage rated for 230V operation, and the inrush currents will be around double => as you say, "BAM!!, SMOKE!!!" J From: Kunde, Brian [mailto:brian_ku...@lecotc.com] Sent: 15 September 2017 13:44 To:

Re: [PSES] power strip details

John, I think surge suppression on power strips is more of a Marketing Gimmick than anything. We all know that in a real world surge event, the device that fires first will take the brunt of the hit, and may not survive a second hit. Power strips have become a throw-away item but maybe it is

Re: [PSES] power strip details

Ted, Thanx for that comprehensive review. Fits my general experience; recounts some long forgotten details. :>) br, Pete Peter E Perkins, PE Principal Product Safety & Regulatory Affairs Consultant PO Box 23427 Tigard, ORe 97281-3427 503/452-1201

Re: [PSES] power strip details

The rating on a North American circuit breaker is not its trip current. It is the rated current. UL 489 requires circuit breakers to hold at their rated current. In fact, at normal room temperatures, UL 489 Listed circuit breaker should hold at 110% of its rated current. The calibrations are

Re: [PSES] power strip details

Yup - decent quality "dumb" 115V adapters and similar will work on 230/240V - for years my AV system power distribution was via NEMA 5-15R duplex outlets and 5-15P cord sets because we had a lot of those "going spare" at work, and I never had any problems (except remembering that "Live" &

Re: [PSES] power strip details

Ted Thanks for correcting me on breaker characteristics - I was also thinking afterwards that the issues are also related to variations in trip time/current characteristics. An, the NEC (and I assume the CEC is similar) rules on power strips seem just "weird" to me! J From: Ted Eckert

Re: [PSES] power strip details

John, Weird is normal here; we're just trying to understand the weird rules on the other side of the pond. :>) br, Pete Peter E Perkins, PE Principal Product Safety & Regulatory Affairs Consultant PO Box 23427 Tigard, ORe 97281-3427 503/452-1201

Re: [PSES] power strip details

"Apparently, the NEC 'code' was derived originally from the IEC." Not according to Mike Holt. See: http://www.mikeholt.com/nec-history-and-purpose.php Rich - This message is from the IEEE Product Safety Engineering Society

Re: [PSES] power strip details

Probably reasonable to assume that very few household loads are drawing their rated current continuously. Those few that are, likely don’t aggregate over 12A on a 15A ‘branch’ circuit. It seems to me that the NEC code writing panel made a big deal out of nothing, but I’d like to read a

Re: [PSES] power strip details

The NEC does allow 100% rated breakers, as long as they are Listed for this purpose and used inside a proper enclosure (such that operation is not outside the Listing test parameters). More information here

Re: [PSES] power strip details

The code actually writes about 125% for breaker rating versus continuous current. And so, 80% of breaker rating for 'continuous loads' (3 hours) in the NEC and CEC, unless the breaker is Listed for 100% of its rating. (210.20 in the 2014 NEC). I generally despise rules of thumb like this,

Re: [PSES] power strip details

Unlike the US/Canada (etc), there is no derating factor for UK mains wall outlets. A 13A wall outlet can be loaded at 13A, and a twin/duplex 13A outlet can be loaded at 13A per outlet because the "diversity factor" principle is applied, i.e. it is highly unlikely in practice that both 13A outlets

Re: [PSES] power strip details

UK household power strips are rated at 13 A and include a 13 A fuse. Other fuses, normally used in plugs, are 3 A, 5 A and 10 A. I have seen a 1 A fuse, but they are very rare. With best wishes DESIGN IT IN! OOO - Own Opinions Only www.jmwa.demon.co.uk J M

Re: [PSES] power strip details

I invite you to also read the Preface in the NEC 2014 Handbook. It provides an interesting history. Ralph McDiarmid Product Compliance Engineering Solar Business Schneider Electric -Original Message- From: Richard Nute [mailto:ri...@ieee.org] Sent: Friday, September 15, 2017 12:42

Re: [PSES] power strip details

Yes, thanks Scott. I recall reading that Square-D bulletin some time ago, but I’m still puzzled about how the “code” ended up with requirements for standard and 100% rated circuit breakers. The IEC installation series of standards (60364 stuff) seems to have successfully avoided those

Re: [PSES] power strip details

In my opinion, surge suppression in a power strip or in a product may protect the local environment from overvoltage, but may create additional overvoltages elsewhere on the system. Many surge suppression techniques place a momentary short-circuit on the mains. So, the local environment

Re: [PSES] power strip details

Free access http://www.nfpa.org/codes-and-standards/all-codes-and-standards/list-of-codes-and-standards/detail?code=70 -Original Message- From: Ralph McDiarmid [mailto:ralph.mcdiar...@schneider-electric.com] Sent: Friday, September 15, 2017 4:31 PM To: EMC-PSTC@LISTSERV.IEEE.ORG

Re: [PSES] power strip details

Well I wouldn't say all electricity suppliers are good at it. In the Caribbean islands where the power grid consists of one power plant with a few generators and a handful of main distribution feeders the power quality is terrible with surges. Random short and long duration power outages are

Re: [PSES] power strip details

Only codes have free access. Couldn't find the handbook in free access. Rich -Original Message- From: Nyffenegger, Dave [mailto:dave.nyffeneg...@bhemail.com] Sent: Friday, September 15, 2017 1:45 PM To: EMC-PSTC@LISTSERV.IEEE.ORG Subject: Re: [PSES] power strip details Free access

Re: [PSES] power strip details

There is free view only access to the NFPA standards on the web site. http://www.nfpa.org/nec/about-the-nec/free-online-access-to-the-nec-and-other-electrical-standards "Free online access to the NEC(r) and other electrical standards NFPA delivers free online access to all NFPA standards to