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dipil
730

Dear All,

Can anyone let me know how to calculate the Accident Free Man Days? If any fatal or reportable accident occurs, how should it be considered? For example, let's consider this year up to July 31st:

- Jan = 31 Days
- Feb = 28 Days
- Mar = 31 Days
- Apr = 30 Days
- May = 31 Days
- June = 30 Days
- July = 31 Days

If no accident happens, the Accident Free Mandays for the period of Jan - July 2011 will be 212 Days. If a fatal or reportable accident happens on July 31st, then the Accident Free Mandays for the same period will be 211 Days or Not.

After such an incident, can we start counting the next period from August 1st or not?

I hope my question is clear. I am looking forward to getting clarification on my query.

Thanks in advance.

From India
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Dear dipil, For example fatality or Reportable accident happened on July 31st you suppose to lose 212 days. your counting will start again on August 1st with 1 day . . . hope you will clear. . .
From United States, Fpo
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Dear Dipil,

Accident-Free Days = (Man-days worked for the month / No. of calendar days for the month) x No. of accident-free calendar days of the current month. Finally, cumulate the data from each month's summary.

Please go through the attached XLS file. I hope this information may clear your query.

From India, Hyderabad
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File Type: zip New Compressed (zipped) Folder.zip (11.2 KB, 2180 views)

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dear dipil, pls. find a calculation formula, that we use in our organization. (I hope that I have shared this earlier??)
From India, Delhi
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File Type: pdf definition_THW.pdf (112.7 KB, 1407 views)

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Hi Dipil,

What I understand from your query is that you are looking forward to knowing the Accident-Free Man-Days. What I believe is that an accident is not only limited to fatality or reportable incidents; it includes first aid cases, medical treatment cases, and restricted work cases as well.

I'm not sure whether I am correct or not, but the best term you can use here is cumulative days without LTI or fatality.

Thanks, Sam

From Azerbaijan, Baku
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Dear Seniors, I don’t understand all that thinks. Please clear me the same. With Regards, Vineet Deshmukh
From India, Yavatmal
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Dear Dipil and Vineet,

If no accident happens, the Accident-Free Man-days for the period of January to July 2011 will be 212 days.

If a fatal accident or reportable accident occurs on July 31st, then the Accident-Free Man-days for the period of January to July 2011 will be 211 days or not.

My Justification:

211 days represent the Accident-free calendar days, not Man-days.

To calculate the accident-free man-days, you need to consider the total man-days.

For example:

To compute the accident summary for July at the end of the month:

Suppose an accident occurred on July 23rd, then the Accident-free calendar days are 22 days.

Given that July has 31 calendar days and assuming your workforce consists of 500 individuals:

Total Man-days worked = (31/7)*5*500 = 11071

(31/7*5 denotes 40 hours per week or 5 days per week)

Accident-Free man-days = (Total Man-days worked (11071) / Calendar days for the month (31)) * Accident-free calendar days (22)

Therefore, there are 7856.8 accident-free man-days for the month of July within your organization.

I hope this explanation clarifies your doubt and serves the intended purpose.

From India, Hyderabad
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dipil
730

Dear SRM
Thanks for your excel file and the explanations... I am very sorry to say, I not get you fully...
In the explanation which you given below, from where this 7 comes? What this denotes?
"Total Man-day worked = 31/7*5*500 = 11071"
Please clarrify...
Thanks in advance...

From India
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dipil
730

Dear Sam,

Thanks for your inputs into the thread. It's Accident-Free Man-Days that our management wants. So we have to provide that and use this term.

Thanks and keep on participating.


From India
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dipil
730

Dear KVS Thanks for your input into thread... The file you attached is as per OSHA... I want the calculations which we do as per indian standards... However thakns for sharing...
From India
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Dear Dipil,

There are 7 days in a week. If we divide the number of month days by the number of week days, then we get the number of weeks in a month. Additionally, 5 is the standard number of working days per week, i.e., 40 hours for the week.

Thank you.

From India, Hyderabad
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Dear Dipil,

As I informed you, we are following OSHA standards and calculating accordingly.

Dear Mr. Rao,

I also had the same question that Dipil asked. Still unclear on your explanation. Why can't we follow this structure - No. of working days * No. of working hours directly? What is the reason behind this calculation, as it is confusing to me.

From India, Delhi
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dipil
730

Dear KVS,

I am also not yet clear about the explanation of what SRM gives. But based on your question, I believe it will provide the man-hours, not the man days.

@ SRM, please assist me in clarifying this specific issue. What will be the Accident-Free Man-Days for the month of July 2011?

Total Manpower = 500
No accidents occurred in the month.
Total Days in the Month = 31
Days Worked = 26
Hours worked per Day = 8 Hours

Accident-Free Man-Days for the month of July 2011 = 500 * 26 = 13000. Is this the correct answer? Please help clarify my doubt.

From India
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Dear Dipil and KVS,

If no accident occurred in the month of July, your calculation is correct. If you consider 5 working days a week, you have to consider 21 instead of 26. For an appropriate outcome, collecting actual data from HR is also the right method. In case any accident occurred during this month, suppose on the 16th of July, the number of working days may be 12 or 13.

From India, Hyderabad
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Dear Dipil,

I think your query is well met by Mr. S Mani. What he has explained regarding your query is about commuting mandays for one month only. Man-days worked are different from calendar days. Mandays worked in an organization are the total workdays performed (excluding the rest days), i.e., calendar days * workdays per week * manpower.

For example, in July, there are 31 calendar days, 7 days in a week, and 5 workdays in a week. Therefore, 31 * (5/7) = 22.14 days, which we can round down to 22 days worked in July. If the manpower is 500, then the total mandays for July would be 22 * 500 = 11,000 mandays. Further, if you multiply this by 8 hours a day, you get the total man-hours.

As mentioned earlier, your accident-free mandays from January to July are lost if a fatal or reportable accident happens on the 31st of July, and the accident-free period starts from the 1st of August onwards.

I hope I could explain it correctly to you.

Regards,
drs

From India, Haryana
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Dear Srinivasa Rao,

We are also working under OSHA; it's totally new to me what we discussed in this thread. I heard about this but still have not yet used/applied those calculations. However, now I am well cleared with the help of helping hands. Keep on sharing your expertise with us.

Keep up the good work & Thanks.


From United States, Fpo
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Dear Mr. DRS,

You exactly caught the calculation method. Thanks for your inputs into this thread.

Dear Dipil & KVS,

However, your query got cleared. Thank you for initiating such a good topic. I know very well, many safety officers are not clear or get confused with these calculations.

Dear Raghu,

Thank you very much for your comments.

From India, Hyderabad
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dipil
730

Dear DRS,

Thanks for your input into the thread. I will come back to you and Mr. KVS if facing any practical problem related to this topic in the future. Thanks and keep on sharing your expertise with us.


From India
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Thank you for valid information to calculate accident man days for every month. and i want know the actuarial valuation for gratuity calculation any one can reply for this plz....
From India, Delhi
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Dear sir Please guide How to calculate mandays lose & lose man hours Ex. workers two leg broken( fracture) on 28 10/2016 Regards Ramesh
From India, Mumbai
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Dear all I need some Safety Moments in HSE área i have Audit, so before the audit iam going to present Safety moments Could you please help me?
From Angola, Luanda
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Anonymous
Dear Mr. SRM & Mr. Raghu,

Thank you for clearing the doubt between Accident-Free Man Days and Accident-Free Calendar Days. However, I am a bit confused about the 5 workdays in a week. In our organization, we have 6 workdays in a week. So, can we put the value 6 instead of 5 in the same formula.

Regards,
Arun

From India, Mumbai
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calculation is wrong 22*500=11000 not 11071
From India, undefined
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