Re: [PSES] dimension of the stud for PE

Ken alluded to this before - alternately, 2.6.4.2 allows you to run the test of 2.6.3.4 for constructions that don't meet the requirements of Table 3E. On Wed, Nov 30, 2016 at 8:42 PM, IBM Ken wrote: > Bostjan; > > That is my understanding; use the table to determine the cross-sectional > area (

Re: [PSES] dimension of the stud for PE

As a general rule, the PE hardware should be the same as the phase hardware. Since, under worst-case fault, the PE will carry the maximum phase current from the wall, construction should be the same as phase construction. Bonding conductor (internal earthing conductor) hardware depends

Re: [PSES] dimension of the stud for PE

Hello Rich, Thank you for your comment. What you wrote is a good general approach however in this particular case phase conductors will be attached directly to terminal of the mains switch and PE conductor will be fixed to a stud terminal. So I cannot compare dimensions directly. Do you maybe

Re: [PSES] dimension of the stud for PE

The test of 2.6.3.4 does get interesting for high current equipment. I have personally run this test only on equipment rated up to 50 A. Even then, it required applying a 100 A test current for 4 minutes. For the 130 A rated product, you would have a test current of 260 A applied for 8 minutes.

Re: [PSES] dimension of the stud for PE

Reminds me of an amusing argument between a student and a 5 V 1000 A MG set, observed from a safe distance. With best wishes DESIGN IT IN! OOO – Own Opinions Only www.jmwa.demon.co.uk J M Woodgate and Associates Rayleigh England Sylvae in aeternum manent. Fro

Re: [PSES] dimension of the stud for PE

I've done this test at several hundred amps before (not to 60950-1, but similar). I used an old Sorensen DC power supply (low voltage, high current), with external calibrated measurement for both current and voltage drop. Care must also be take

Re: [PSES] dimension of the stud for PE

I too can vouch for doing the Bonding test to a few hundred amps using a Sorensen DC supply (and calibrated V and I meters and stopwatch...) -Ken On Thu, Dec 1, 2016 at 5:07 PM, Scott Aldous < 0220f70c299a-dmarc-requ...@ieee.org> wrote: > I've done this test at several hundred amps before (n

Re: [PSES] dimension of the stud for PE

What I did: Bought the largest toroidal transformer available (2200 VA), and used copper tube (water pipe) or lightning conductors to create one or 2 windings as a temporary secondary. This gives you several volts at 400-500 A (AC!) before the primary gets overloaded. Switch the primary wi