TIME STUDY / WORK MEASUREMENT:
Work Measurement may be defined as the application of different techniques to measure & establish the time required to complete a job by a qualified worker at a desired level of performance.
Operation analysis is a detailed study of different operations involved in doing a work.Operation analysis becomes necessary in order to investigate the short comings of the existing method & to develop an improved procedure.
ANALYSIS OF MOTION:
The purpose of motion analysis is to design an improved method which eliminates unnecessary motion & employs human efforts mor productively.
Steps involved in motion analysis are:
- Select the operation to be studied
- List & chart various motions performance the operator.
- Identify the Productive & Idle motions
- Eliminate the unnecessary & non productive motions
- Redesign the existing operating procedure by employing minimum number of motions in the most appropriate sequence & in accordance with the principles of motion economy.
STANDARD TIME:
Standard Time may be defined as the amount of time required to complete a unit of work under existing conditions, using the specified method & machinery, by an operator able to do the work in a proper manner and at a standard pace.
OT | PRF | PA | RPA | SA | POA |
| | | | | |
Normal Time | Allowances % | ||||
Standard Time |
OT- Observed Time |
PRF - Performance Rating Factor |
PA- Process Allowances |
SA - Special Allownces |
POA - Policy allowances |
Standard Time = (Average Observed Time X Rating %)+Allowances %
Normal Time = (Average Observed Time X Rating %)
ð Standard Time = Normal Time + Allowances % => N.T + (NT X Allow % /100)
Example:
Calculate the Standard time with the given information: Average Observed time = 2 min; Rating % = 50 % , Allowances = 15 %
Sol:
Std Time =Normal time + Allowance %
Normal time = Average Observed Time X Rating %
= 2 X 0.5 = 1 min
Standard time = 1 min + 15% =1+0.15 = 1.15 min
Time Study Form | |||||
Product: | | Time Study Engineer: | |||
Operation: | | Date: | | | |
Description : | | | | | |
| | | | | |
Sl No | Observed Time Stopwatch Reading (Min) | Rating Factor % | Normal Time (min) | Allowance % | Standard Time (min) |
1 | | | | | |
2 | | | | | |
3 | | | | | |
4 | | | | | |
5 | | | | | |
6 | | | | | |
7 | | | | | |
8 | | | | | |
9 | | | | | |
10 | | | | | |
| | | Average Standard Time= | |
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