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How can you perform contact resistance test of HT circuit breaker

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CONTACT RESISTANCE MEASUREMENT TEST How can you perform contact resistance test? It has a two different test set.  MOM 600A Micro-Ohmmeter  (MAGGER) CIBANO 500 (Omicron) MOM 600A Micron-Ohmmeter (Magger)

ELECTRICAL POWER SYSTEM

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                                          ELECTRICAL POWER SYSTEM  Add caption Basic Concept :                                Energy is the basic requirement of economic development. Need for energy is always critical. Man is ever searching for to explore energy resources to meet his energy requirements. For this purpose, he exploits all energy resources that are easily available to him. Electrical power is one such source that has more significance on all other sources of energy.

ABSOLUTE LIMIT OF APPROACH FROM VARIOUS & HIGHLY VOLTAGES

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            ABSOLUTE LIMIT OF APPROACH FROM                  VARIOUS & HIGHLY VOLTAGES    HV Voltage is a very dangers than you use  see your approach and stay in a safe limit
FIRE CLASSES AND EXTINGUISHERS FOR EACH what is fire ? Fire is a three item combination (Oxygen +Material+Ark)   Fire have a difference type than his give difference classes now you see below table

PORTABLE TEMPORARY GROUNDINGS (PTG)

PORTABLE TEMPORARY GROUNDINGS (PTG)               Purposes or Advantages of PTGs 1.                   PTGs are positive proof of electrical isolation. 2.                   PTGs drain e.s. and e.m induced potentials. 3.                   PTGs guard against the accidental magnetization of circuit. 4.                   PTGs provide bonding.
SAFE WAYS ARE THE BEST WAYS             The following points should be remembered and observed at all times:- i.                       Consider everything unsafe /energized unless it is proven safe. ii.                    Keep all floors, ladder, clean and fee of grease/ oil to avoid slipping / falling. iii.                  Do not wear loose clothing when working around rotating machines. iv.                  Carry ladders, tools and materials below waist level when working in switch yard. v.                     Keep gasoline in safety Cane painted red.

what is the maximum current level a human body can withstand before sustaining injury

        LOW VOLTAGE HAZARD      Why Low Voltage is considered more dangerous than H.V?             Generally electric hazard occurs due to low voltage, rather than high voltage because high voltages are inaccessible as they give warning to approaching persons prior to contact due to their electrostatic fields. But low voltages give no such warning and are felt only when they are