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Special collaborative edition |
What is this "collaborative" newsletter? It's pretty simple, it means that you are going to write it :-))
More seriously, the subject of this newsletter is important and complex, and we didn't want to go the usual way (eg an article from us), for 2 reasons: it is a subject which we find unifying, and a subject on which we lack information. This is why we need your collaboration (a few minutes of your time) to validate, complete, enrich our preliminary review below.
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Why a review of new MCC drawer solutions for Operator Safety?
Electrical safety, and in particular the protection of operators against electrical hazards, has for sure improved in the last 15 years, but remains a major topic: even in a country like the US, electrical hazards cause more than 300 deaths and 4,000 injuries in the workplace each year. Electrical contractors , panel builders and electrical maintenance workers whose job duties routinely involves working with live electrical installations are particularly affected by these risks. And among others, Motor Control Center switchboards are a particular point of attention as maintenance operations are more frequent and generally done with the switchboards remaining live.
So, the basis for our today review is an emerging solution of MCC drawers which adds new level of safety for the operators.
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MCC Drawer operation
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Closed door operation – changing drawer position
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So what is this solution?
It is a drawer solution which:
makes it possible to do all drawer operations with its door remaining closed (operations like changing between connected, test and disconnected positions, or like thermal monitoring ...),
is also internal arc resistant,
to ensure that, in case of short-circuit or arc fault inside the drawer, the high temperature gases and pressure generated by the fault remains enclosed inside the drawer or enclosure, thus reducing the risks of injuries for the operator. |
Which manufacturers propose this solution?
Some manufacturers, as you will see in our preliminary list below, offer this possibility, usually as an option. In most countries, it is still rarely used today, except to our knowledge in Brazil where some local regulation has made it mandatory in some industries like Oil & Gas or Mining. |
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Our preliminary list and comparison - to be completed !
Here is the review we want you to comment and complete, with the information we could collect so far about existing manufacturers and products ranges. And the comparison of these offers based on some criteria we have chosen. |
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IAC |
CDO |
TM |
IP |
IEC 61439-2 |
Countries |
| ABB |
MNS |
Yes |
No |
Yes |
? |
? |
WW |
| Eaton |
Power Xpert |
Yes |
Yes |
? |
with dummy drawer |
Yes |
WW |
| Rockwell |
Centerline |
No |
No |
? |
Yes |
No |
WW |
| Schneider |
Okken |
Yes |
Yes |
? |
? |
Yes |
WW |
| Schneider |
Blokset |
Yes |
Brazil only |
? |
Yes |
Yes |
WW |
| Siemens |
Sivacon S8 |
Yes |
Yes |
? |
with dummy drawer |
Yes |
WW |
| Elsteel |
TM basic |
No |
No |
? |
Yes |
Yes |
WW |
| Eaton Holec |
Capitole 40 |
Yes |
No |
? |
? |
Yes |
Europe |
| Larsen&Toubro |
T-era |
Yes |
Yes |
? |
? |
Yes |
India |
| Orteng |
Orteng |
Yes |
Yes |
Yes |
Yes |
Yes |
Brazil |
| Siemens |
Siplux |
Yes |
Yes |
Yes |
? |
No |
Brazil |
| Waltech |
AWC / AWD2 |
Yes |
Yes |
? |
Yes |
No |
Brazil |
| Weg |
MCC-05 Line |
Yes |
Yes |
Yes |
? |
No |
Brazil |
| others ? |
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IAC - Internal Arc Resistant (IEC/TR 61641 V2)
CDO - MCC drawer operation behind closed Door
TM - Thermal Monitoring
IP - Degree of protection is maintained when the drawer is removed
WW - Worldwide
If as ourselves you believe that this solution can really improve operator safety on Motor Control Centers, and if you have one minute to collaborate, click HERE |
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© 2009 - Engineering.electrical-equipment.org
Electrical engineering Blog meeting the recommendations for automated processing implemented in the context of e-mails by the Commission Nationale de l'Informatique et des Libertés (CNIL) of Act 78-17 of 6 January 1978 on computers, files and freedoms. We especially invite you to read the specifics of the CNIL corresponding to the use of emails professionals have enabled us to send you this letter so totally legal. The information contained in this email or capitalized by the tracking system used in this shipment will not be sold to third parties without your permission. In addition, you maintain access to your information. You can at any time terminate your subscription. |
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