IEC TC 116 in in the process of folding the 60745-1 (hand held motor operated 
tool) standards into the 62841 series ( Electric motor-operated hand-held 
tools, transportable tools and lawn and garden machinery ). See their dashboard 
at: 
http://www.iec.ch/dyn/www/f?p=103:30:13397277133783::::FSP_ORG_ID,FSP_LANG_ID:4112,25
 

My reference was not from a part 2, but actually from section 21.16 of 60745-1: 
" 

Tools employing liquid systems shall protect the user against the increased 
risk of 
shock due to the presence of liquid under conditions of normal use and the 
faults of the liquid 
system. 
Tools employing liquid systems shall be either: 
• of class III construction; 
• of class I or class II construction and be provided with a residual current 
device and comply 
with 14.4, 14.5 and 14.6; or 
• of class I or class II construction and be designed for use in combination 
with an isolating 
transformer and comply with 14.4 and 14.5. " 
Section 14.4 describes using a salt water mix to simulate overfilling or 
misassembling and then testing for leakage. 

I do not know whether your product falls within scope of 62841; perhaps your 
favorite NRTL could help. Your favorite NRTL might even have someone on the 
committee who could help with a question. 

Mike 

----- Original Message -----

From: "Brian Kunde" <brian_ku...@lecotc.com> 
To: msherma...@comcast.net 
Cc: "EMC-PSTC" <EMC-PSTC@LISTSERV.IEEE.ORG> 
Sent: Wednesday, January 31, 2018 11:58:25 AM 
Subject: RE: [PSES] GFCI vs GFPE 



Mike, 



Thanks for your offer. I assume the requirement for RCD is limited to hand-held 
or portable power tools that uses water. This is interesting because I didn’t 
know this was a requirement. 



In our case, the cut-off saw we are looking at weighs over 300 lbs. Defiantly 
not hand-held any probably not considered portable (depending on your 
definition). 



Do you know if there are similar requirements for non-hand-held electric 
saws/tools? 



Thanks, 

The Other Brian 




From: msherma...@comcast.net [mailto:msherma...@comcast.net] 
Sent: Wednesday, January 31, 2018 12:29 PM 
To: Kunde, Brian 
Cc: EMC-PSTC 
Subject: Re: [PSES] GFCI vs GFPE 





Brian -- 


I think I've seen a Part 2 standard for 60745-1, as I recall, that required a 
RCD if the tool used water and the water ended up in the wrong place 
electrically. If you'd like a screen shot of the section, I can probably find 
it for you. 


Mike Sherman 


Graco Inc. 



----- Original Message -----



From: "Brian Kunde" < brian_ku...@lecotc.com > 
To: "EMC-PSTC" < EMC-PSTC@LISTSERV.IEEE.ORG > 
Sent: Wednesday, January 31, 2018 11:06:36 AM 
Subject: Re: [PSES] GFCI vs GFPE 





Where Pete stated, “ The Euro systems use of RCDs require this protection in 
many installations (but I’m not familiar with the installation code details)”. 
This “Code” is probably what I am seeking. 



Has anyone run across a Code rule that requires the Product to employ a RCCB 
within the product? If the local electrical code requires a RCCB, cannot this 
protection be provided as part of the site protection? Why burden the cost of a 
product where such a requirement may only be necessary in a small percentage of 
installations? 



The main purpose of my question on this topic is cost. Here in the USA, a GFCI 
receptacle is very inexpensive; costing around $10 at most home stores. But a 
3-phase RCD Circuit Breaker can cost $300-$400. On some products, such as a 
tile saw that uses water, this can more than double the cost of the entire 
product. So knowing when and where they are required is very important. 



Thanks again to everyone for your consideration. From what I have read so far 
on this topic, it is a moving target as electric codes from different states 
and countries are always evolving and the code governing the requirements of 
RCDs and GFCIs are common to change. 



Thanks, 

Brian 






From: John Woodgate [ mailto:j...@woodjohn.uk ] 
Sent: Wednesday, January 31, 2018 11:13 AM 
To: Kunde, Brian; EMC-PSTC@LISTSERV.IEEE.ORG 
Subject: Re: [PSES] GFCI vs GFPE 




You can rely on the recent post in this thread by Pete Perkins. 
John Woodgate OOO-Own Opinions Only 
J M Woodgate and Associates www.woodjohn.uk 
Rayleigh, Essex UK 


On 2018-01-31 15:52, Kunde, Brian wrote: 




Thanks for the input everyone. 



I know that GFCI protectors in North America will trip between 4-6mA. Do other 
countries, such as Europe, have the same requirements? 

Or are 30mA protectors used in Europe? If so, does Europe use 30mA ground fault 
protectors because of nuisance tripping even though the studies have shown that 
30mA can be fatal? 



These 3-phase cut-off saws that I’m evaluating comes with a power cord, but no 
plug. They can be field wired or a plug could be added and plugged it into a 
receptacle. The choice is left up to the customer. 



The saw uses water but the work environment would not normally be considered a 
“wet location”. It would not be used in a construction location. 



So again, I’m trying to figure out why the saw manufacturer used the expensive 
30mA ground fault breakers in their product. 



Thanks, 

The Other Brian 













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