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Posted
I am taking the liberty of daring to ask you about any hints/ links where I would be able to find some help with the arrangement of the preventive (predective, daily) maintenance plan of data centre. It is great task for me and I am afraid it may be beyond my capabilities.
I have on site common equipment as MV &LV Switchboards, generators, UPSs, HVAC (CCUs and chillers, pumps), Fire Suppression system (smoke detection, sprinklers) etc. I am trying to find any examples showing typical maintenance periods (tests) for individual systems/devices but with no spectacular effects...
Can you advise me any freely available sources?

Regards,
Seamie - desperate facilities engineer Wink
 
Posts: 1 | Location: Dublin | Registered: 08 August 2007Reply With QuoteEdit or Delete MessageReport This Post
Posted Hide Post
I'm unclear as to what all you're asking; but, it your CMMS system can tie into motor current draw monitor load and no load currents, temperatures and operating parameters. Consult your OEM manuals and setup PM's per their advise or better in harsh environments and generate a WO from the system on a given frequency. Hopefully you can have a reduntancy system that can self test for integrity.

Also, your oil supplier can provide you with advise. Most major suppliers or name brand oil companies will assist, help or do a program for you; regardless, they should supply you with a schedule for oil sumps, etc...

If your CMMS system doesn't monitor then you can do routes on a monthly or quarterly basis to monitor vibration and temps. Oil sampling on a quarterly basis unless environment or oil analyses triggers greater frequency. Generally IR is performed every six months or quarterly if justifible.

Not sure if this is what you're looking for/?


Cordially,
Sam

 
Posts: 1486 | Location: Eastern USA | Registered: 04 August 2004Reply With QuoteEdit or Delete MessageReport This Post
Posted Hide Post
I agree with Sam, you must see your OEM manual at the very beginning.

After awhile maybe you can try to see the MTBF and also could calculate the MTBR, so you can find the optimum frequency of your PM system.

Most of electrical equipments are using frequency based maintenanced, except for motor I prefer to do condition based or running hours preventive maintenance.

Also, you must start thinking about life cycle maintenance, in my company we use the term of planned component replacement. For instance, we change an outdoor arrester every 3 years event it is not broken. Then we repair and clean the old one and put them in store for future use. With this I think you reduce the possibility to have a spectacular effect in your equipment.

cheers,
bad
 
Posts: 3 | Location: Indonesia | Registered: 10 January 2007Reply With QuoteEdit or Delete MessageReport This Post
Posted Hide Post
My experience is that you should use the OEM as a starting point and never implement the OEM recommendatons without a review. In many cases they are very conservative - you could end up with twice the maintenance required.
Also - I dont think MTBF and MTTR are good statistics for developint optimal frequencies. Condition based maintenance is dependent on PF interval and fixed time replacement is based on safe or economic life.
If you are working in the maintenance of protective systems which you may be, then MTBF is important but you need to make sure that the failure pattern is random. If MTBF is a variable, that is the conditional probability of failure increases with age, then you have a whole new ball game.
Take care in adopting OEM recommendations without review.
Rgds
Steve
www.pmoptimisation.com.au
 
Posts: 329 | Location: Global company HQ in Australia | Registered: 14 March 2006Reply With QuoteEdit or Delete MessageReport This Post
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