Are you working in electrical industry??....Do you hear first time about voltage drop??...Why did you ask for millivolt drop?...Do you know what is milli, centi, kilo,micro etc?....Do you know about IEC, BS, NEC standards?..at least IS?....
It seems you are aware about everything in Electrical Industry. So please enlighten us by posting the relevant IS or any of the other Standards mentioned by you which clearly specifies the acceptable values of millivolt drop ratingwise. No vague clarifications please. For your kind information Voltage drop in LT Switchgear or Busducts are generally specified in millivolts as the figures are generally close to that unit ( NOT KILO OR MICRO ? ).
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Millivolt drop measurements on busbar joints are normally relative, so no typical values are given. It is for you on site to define the test and repeat as required. The exception is maybe specific equipment (ACB contacts for instance) where the manufacturer may give a guide value.
We normally assume that a joint should measure less than the equivalent length of bar, so you can easily work out an expected range. Bear in mind that readings will be affected by ambient temperature due to their sensitivity. Probe positioning will also be critical.
MILLIVOLT DROP TEST IN LT SWITCHGEAR/BUSDUCTS
Re: MILLIVOLT DROP TEST IN LT SWITCHGEAR/BUSDUCTS
