Manufacturing refrigeration Compressors

[lawtons]

I work for a company that manufactures refrigeration compressors. These compressors often have exposed buss bars during testing, and there could be 3 to 6 tests going on in our factory at any given time. The power is as high as 600V and 230A.

Of coarse safety measures are in place, but we are going to adopt 70E as our standard. This is going to be tuff.

Are there any products that can be used that would meet 70E requirements to verify power is off in a panel. For example a power meter, or safe panel mounted test points.

We are going to have an arc flash survey done, then we will train and implement, but I would like to have some creative solutions before the training. This is going to be almost impossible to implement and should be well thought out.

 

[weressl]

I work for a company that manufactures refrigeration compressors. These compressors often have exposed buss bars during testing, and there could be 3 to 6 tests going on in our factory at any given time. The power is as high as 600V and 230A.

Of coarse safety measures are in place, but we are going to adopt 70E as our standard. This is going to be tuff.

Are there any products that can be used that would meet 70E requirements to verify power is off in a panel. For example a power meter, or safe panel mounted test points.

We are going to have an arc flash survey done, then we will train and implement, but I would like to have some creative solutions before the training. This is going to be almost impossible to implement and should be well thought out.

If it is a test rig, it implies to me that it is repetious use of the same setup. I would recommend permanently installed LED indicators for each phase. It provides active indication of voltage present prior to operation of the disconnect and absence after.

 

[IMM_Doctor]

"Are there any products that can be used that would meet 70E requirements to verify power is off in a panel. For example a power meter, or safe panel mounted test points."

I am not sure if these are NFPA70E approved.

But here are two products I have seen (but not used). One works with a "tick tracer" and the other is visual.

If you are interested, I would contact the company offering them and ask them how these products offer any measures of safety.

Grace Engineered Products

http://www.graceport.com/prod_checkvolt.cfm
http://www.graceport.com/prod_voltage.cfm

 

[weressl]

"Are there any products that can be used that would meet 70E requirements to verify power is off in a panel. For example a power meter, or safe panel mounted test points."

I am not sure if these are NFPA70E approved.

But here are two products I have seen (but not used). One works with a "tick tracer" and the other is visual.

If you are interested, I would contact the company offering them and ask them how these products offer any measures of safety.

Grace Engineered Products

http://www.graceport.com/prod_checkvolt.cfm
http://www.graceport.com/prod_voltage.cfmhttp://www.graceport.com/prod_voltage.cfm

Note that on their installation drawings they violate the NEC by requiring a neutral connection in the case of a HRG system.

 

[lawtons]

I forgot to mention

I forgot to mention

I forgot to mention that we ship our compressors all over the world, so we use custom built 3 phase auto transformers and contactors to cover voltages ranging from 340 to 60.0 volts, so regular pilot lights may be a problem.

Thanks for your suggestions.

 

[infinity]

Note that on their installation drawings they violate the NEC by requiring a neutral connection in the case of a HRG system.

Where did you see that?

 

[weressl]

Where did you see that?

VoltageVision? R-3W Installation and Operating Instructions

 

[weressl]

Where did you see that?

Here it is