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Yasser
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Substation Insulated Floor Mat

04/26/2013 10:22 PM

Sirs,

If my substation & switchboard is 33kV rated, what class & type of floor mat should I use with reflect to IEC 61111. I'm a bit confuse on nominal max working voltage definitions.

Working voltage is refers to phase-phase as working/rated voltage(33kv) or phase to ground (19kV) only (during any faults).

Appreciate any advice.

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lyn
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#1

Re: Substation Insulated Floor Mat

04/26/2013 10:58 PM

What is your confusion? Do you need a copy of IEC 61111?
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pnaban
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#2
In reply to #1

Re: Substation Insulated Floor Mat

04/26/2013 11:33 PM

Please show the chart for selection or give a link to download.

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lyn
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#3
In reply to #2

Re: Substation Insulated Floor Mat

04/27/2013 12:03 AM

How to Search the Internet: 9 Steps - wikiHow
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Yasser
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#4

Re: Substation Insulated Floor Mat

04/27/2013 2:22 AM

Here is the difference:

1. If I consider Phase-phase Volt (33kV), I need to select Class 4 Rubber Floor Mat since the max working voltage is 36kV

2. If I consider Ground-Phase Volt (19kV), then I can select Class3 Rubber Floor Mat since the max working voltage is 26.5kV

If you can send the copy of IEC61111 is a pleasure to receive it. Thanks.

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Fredski
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#7
In reply to #4

Re: Substation Insulated Floor Mat

04/27/2013 7:26 AM

that actually made me laugh...thanks
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nobodysomebody47
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#5

Re: Substation Insulated Floor Mat

04/27/2013 2:52 AM

Read this

Substation Design
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Yasser
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#6

Re: Substation Insulated Floor Mat

04/27/2013 2:53 AM

Below is the snip image of the table.Plase help to choose.

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Tornado
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#9
In reply to #6

Re: Substation Insulated Floor Mat

04/27/2013 10:09 PM

"Line Voltage" in column 3 = phase-to-phase, not phase-to-ground. Thus Muditmah is correct (GA).

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muditmah
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#8

Re: Substation Insulated Floor Mat

04/27/2013 1:04 PM

go for class 4 rubber mat...
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TonyS
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#10

Re: Substation Insulated Floor Mat

04/28/2013 7:00 AM

If you need a rubber mat you're in serious trouble and the chances of survival with 33KV is minimal.

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debata07
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#11
In reply to #10

Re: Substation Insulated Floor Mat

04/29/2013 8:27 AM

This is a safety and statutory requirement. Nobody is going to touch 33 kV live part deliberately while standing on the rubber mat!
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electricalexpert65
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#12

Re: Substation Insulated Floor Mat

05/15/2013 12:05 AM

How is your system earthed?
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Tornado
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#13
In reply to #12

Re: Substation Insulated Floor Mat

05/15/2013 12:10 AM

Let's hope it isn't via high-resistance earthing through the rubber mat.

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Users who posted comments:

debata07 (1); electricalexpert65 (1); Fredski (1); lyn (2); muditmah (1); nobodysomebody47 (1); pnaban (1); TonyS (1); Tornado (2); Yasser (2)

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