Please do not send me this against what I saw. This is what the clarion call I discussed elsewhere also. We are not united. We need different products at inappropriate levels or pretend as if we need but look askance when the need arises; we are frailings; so only elders said that they decide what our needs are. There is no need to know what is the basic programme in 2022; knowledge even if not required unless we are going for Kone banega crorepati. Latest wiring is simple; boards are divisible. and recastable too. This was not possible then. Moreover it is the job of the electrical engg and electrician; we need not learn the whole law to get justice; we shall learn what is what only. Thank u KR IRS 311022
On Mon, 31 Oct 2022 at 13:47, 'N Sekar' via iyer123 < [email protected]> wrote: > Thanks Sri G K for the 5 articles on switches. > > I am not a technical person but still enjoyed reading these 5 parts. > Informative, they were. > > N Sekar > > Sent from Yahoo Mail on Android > <https://go.onelink.me/107872968?pid=InProduct&c=Global_Internal_YGrowth_AndroidEmailSig__AndroidUsers&af_wl=ym&af_sub1=Internal&af_sub2=Global_YGrowth&af_sub3=EmailSignature> > > On Mon, Oct 31, 2022 at 12:42 PM, 'gopala krishnan' via iyer123 > <[email protected]> wrote: > > *SWITCH PART 5* > > Dear friends, > > This is the final part of the posting under switch and related items in > simple manner. Again last one paragraph was wrong named as 27 instead of 29 > in the last posting, a typo. *This part start with paragraph 30* > > Gopalakrishnan 31-10-2022 > > *30 Press type switches* > > Press type switches we can see in computer, lap tops, remotes, torch lights > etc. First press will switch ON the supply, 2nd pressing will switch OFF. > This type of switch is normally seen in *low voltage circuits*. > > Some *recent fans have come with this type of arrangement. *An > electronic circuit provides continuity for working. So with a remote the > fan can be switched ON and OFF, the *permanent circuit for fan is Kept > switched ON*. I doubt this type of switching is safe when people are away > for days by switching OFF from the remote unit. > > *31. Non locking switches* > > Non locking switches are provided where equipment has to operate for a > short period like *calling bell. * > > *32 Both way working* > > In special wiring like light and fan switching ON or OFF from two places > – *viz normal switch board and switch board near cot, *these ordinary > switch will function from both places. In this case in regular switch board > switch may be OFF position, but fan may be working. Most technicians switch > OFF mains and UPS supply and work in the switch box for replacement etc. > Either emergency light or torch from mobile phone is used for light, > switching them ON. > > *This is a case of stair case wiring*. In stair case wiring light for > stair case can be switched ON from ground floor or from first floor and > switched OFF also from either places. I studied stair case wiring while > undergoing training as Telephone inspector. > > *33. Compound and gate lights.* > > These lights are always switched ON from the inside of home. Since these > lights have to withstand rain and sunlight, covering is provided. Compound > lights can be *either tube lights or bulk fitting.* Sometimes both are > provided. > > *34 Power distribution panel and rotary switches* > > It is warned that only experienced persons should operate rotary switches > in this board. Power indication of the three phase supply is provided by > LED lights above the rotary switches. Normally different color LEDs are > provided. It is advised to keep it switched ON. > > If supply in any phase fails in extreme emergency by operating the > rotary switch, supply from another phase can be connected to work light, > fans, AC units etc. Ensure there is not much load in both phases. > > *The following is simple information about distribution panel. Please > note it is for just information*. In any distribution panel only > electricians work for repairs, what the owner of the house can do is only > operation of rotary switches. Ensure cleaning outside of the board is > done by electrician only. *It is best operate rotary switch using > insulated footwear.* > > From the external switch board three phase supplies and UPS supply comes > to this panel. As told already separate circuit breaker is for UPS and > common circuit breaker for three phase supply. The three phase supply is > extended to rotary switches. Each rotary switch has all the three phases > enabling switching of phases. > > There are section circuit breakers. Wiring cables are extended to these > circuit breakers. Three phase supply is extended dividing the circuit > breakers as sections. > > Example of section. In a home, hall, sit out, portico, front compound > lights, sump motor can be a section. Kitchen, work area, fridge, mixer, > grinder, ROS system, bore well can be another section. Similarly > sections are decided. > > *Note the AC units have circuit breaker both near AC unit and in the > distribution panel.* > > In most cases distribution panel details are given to house owner *if > insisted*. Technicians mostly make out from fault attending and regular > technicians may write for reference with marker the details. > > In my home after house warming my co-brother, an electrician and my son > marked the details in the distribution panel and I prepared a chart in my > laptop and taken print and hung near the main door to check out circuit > breaker trips. *Technician just refers it in case of necessity. * > > -- > You received this message because you are subscribed to the Google Groups > "iyer123" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > To view this discussion on the web visit > https://groups.google.com/d/msgid/iyer123/1298370407.1474860.1667200323646%40mail.yahoo.com > <https://groups.google.com/d/msgid/iyer123/1298370407.1474860.1667200323646%40mail.yahoo.com?utm_medium=email&utm_source=footer> > . > > -- > You received this message because you are subscribed to the Google Groups > "iyer123" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > To view this discussion on the web visit > https://groups.google.com/d/msgid/iyer123/668252070.1646361.1667204228203%40mail.yahoo.com > <https://groups.google.com/d/msgid/iyer123/668252070.1646361.1667204228203%40mail.yahoo.com?utm_medium=email&utm_source=footer> > . > -- You received this message because you are subscribed to the Google Groups "Thatha_Patty" group. 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