learn estimation of amount and material

1. ELECTRICAL WIRING
TYPES OF ESTIAMTIONS
2.1

2. Estimation
?

4. Estimation
Importance of money
Importance of Resources
Importance of timings
Management

5. Who is good Estimator?
Imagination
Creativeness
Initativeness
Presence of mind
Technical knowledge
Knowledge of surrounding of site

6. Importance of estimation
To get approx costing
To get approx quantum of work
Tools required
Types of labor requires
Profit loss?
It decides whole road map of project

7. Types of
estimation
Approximate
Estimation
Scientific
Estimation

8. Approximate estimation
Its based on Thumb rule
Experience counts here
May have errors
Cant predict profit loss

9. Scientific Estimation
Calculation of required material
Study of designs/drawings/blue prints
Much nearer to reality
Involves detailed survey
Can predict profit loss

10. Knowledge for sci.
estimation
Calculation of required materials, tools, machinery, labor etc
Specification of material
Condition of work place and man power
Comparison and Selection of material
Knowledge of price catalogues
Study of drawings and blue prints
Ability to go through standards

11. Compare
Approx
Est.
Scientific
Est.

12. Estimation is a tool to calculate cost, manpower, money and time to finish
project, machinery required
And ultimately to work out feasibility and profit loss
Two types of Estimation
In Approximation, no exact calculations are done
In scientific, all care to consider all aspects, its much nearer to reality
SUMMARY