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Pollution categories and their effects on EICR's

Hi Guys & Gals,

So an interesting topic cropped up the other day in regards to the pollution category rating for BS EN60898 devices and thought I would share with the group ?

It is part of the larger question of where BS7671 ends and other standards start in relation to EICR's.

It is usually a fairly obvious line and often excludes a lot in a non domestic situation!

So to the crooks of it;

You are working in a pollution cat 3 environment and the devices are BS EN 60898, a deviation from standard, but these devices are in what is a site built panel which (known or unknown to the installer)  falls outside of BS7671 and in to the realms of 60204 and or 61439. There is no markings, paperwork oh hint of CE/UKCA, the equipment is similar to that you might find in any installation yet housed in a bespoke panel like construction.

In BS7671 terms (which we know do not apply here) you might say the control panel has defects which make it's safety questionable and simply FI for the Tech file of CE documentation to confirm compliance.

Where do you stop using the EIRC for reporting and what might you use instead where a client requests full site inspection…

Discuss away!

Martyn

 

 

 

 

Parents
  • The definitions of ‘pollution level’, defined by  IEC 62368-1  are used to decide permitted creepage distances and clearances.

     

    40167cdd287f9ee1b47bcb9e64e1df6b-original-crep-clear.jpg

    more on that and figures for level 3 as well 

    herehttps://www.powerctc.com/en/node/4757

     

    Pollution Degree 1: No pollution or only dry, nonconductive pollution occurs. The pollution has no effect.

    Pollution Degree 2: Normally only nonconductive pollution occurs. Temporary conductivity caused by condensation is to be expected.

    Pollution Degree 3: Conductive pollution or dry nonconductive pollution that becomes conductive due to condensation occurs. To be found in industrial environment or construction sites (harsh environments).

    Pollution Degree 4: The pollution generates persistent conductivity caused by conductive dust, rain, or snow.

    Using kit of the wrong level is a case of keeping the potential contamination out. Even  a simple enclosure or at a push a tent, can reduce a problem by 1 or 2 levels, so long as the door stays shut, similarly if ventilation is needed,  fan grilles should have basic sponge or paper filters and louvers.

    Mike

Reply
  • The definitions of ‘pollution level’, defined by  IEC 62368-1  are used to decide permitted creepage distances and clearances.

     

    40167cdd287f9ee1b47bcb9e64e1df6b-original-crep-clear.jpg

    more on that and figures for level 3 as well 

    herehttps://www.powerctc.com/en/node/4757

     

    Pollution Degree 1: No pollution or only dry, nonconductive pollution occurs. The pollution has no effect.

    Pollution Degree 2: Normally only nonconductive pollution occurs. Temporary conductivity caused by condensation is to be expected.

    Pollution Degree 3: Conductive pollution or dry nonconductive pollution that becomes conductive due to condensation occurs. To be found in industrial environment or construction sites (harsh environments).

    Pollution Degree 4: The pollution generates persistent conductivity caused by conductive dust, rain, or snow.

    Using kit of the wrong level is a case of keeping the potential contamination out. Even  a simple enclosure or at a push a tent, can reduce a problem by 1 or 2 levels, so long as the door stays shut, similarly if ventilation is needed,  fan grilles should have basic sponge or paper filters and louvers.

    Mike

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