Hi Sudhakar,

Yes, but how would you plan to keep that impact hammer in calibration. Note
that the 50mm steel ball essentially maintains its calibration unless it is
damaged.

 

I look forward to your reply.

 

Best regards,

 

Ron Pickard

 

From: emc-p...@ieee.org [mailto:emc-p...@ieee.org] On Behalf Of sudhakar
wasnik
Sent: Tuesday, January 08, 2013 7:48 PM
To: doug...@gmail.com; EMC-PSTC
Subject: Re: [PSES] Ball drop test and Impact hammer test ... IEC60950-1
2005 and UL, CSA variation

 

You can make 5.0J Impact hammer and use it

 

  _____  

From: "doug...@gmail.com" <doug...@gmail.com>
To: Sudhakar Wasnik <saloni95...@yahoo.com>; EMC-PSTC
<EMC-PSTC@listserv.ieee.org> 
Sent: Tuesday, January 8, 2013 6:33 PM
Subject: Re: [PSES] Ball drop test and Impact hammer test ... IEC60950-1
2005 and UL, CSA variation

 

Typically the spring loaded impact hammer is 0.5 Joules, the 50mm steel
sphere is 5.0 Joules when doing the vertical or pendulum drop.

Doug



Douglas E Powell
http://www.linkedin.com/in/dougp01

http://www.linkedin.com/in/dougp01

  _____  

From: sudhakar wasnik <saloni95...@yahoo.com> 

Date: Tue, 8 Jan 2013 18:19:34 -0800

To: <EMC-PSTC@LISTSERV.IEEE.ORG>

ReplyTo: sudhakar wasnik <saloni95...@yahoo.com> 

Subject: [PSES] Ball drop test and Impact hammer test ... IEC60950-1 2005
and UL, CSA variation

 

Hi Guys, 

 

Can the ball drop test be conducted using impact hammer ?  

 

I do not see any credible reason for not using the impact hammer.

 

Impact test using impact hammer delivers x amount of Joules energy  upon
impact similar  to the dropping of steel ball of certain size from certain
height.

 

Thanks,

 

 

Sudhakar Wasnik, MS EE, IES

 

Apple Inc.

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