factor
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grouping factor
hi all does any one know if there is a min length of cable which must be calculated for grouping Ie a drop of 500mm to a fuse board a drop of 1000mm ect and i read some were that these are for cables loaded 100% of the time so would these need calculating on a light bed room ring of...- beaver74
- Thread
- factor
- Replies: 2
- Forum: Electrical Wiring, Theories and Regulations
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Velocity Factor
Hello I'm having a play with a TDR to find a fault on an underground cable. The piece of kit I'm using is the Megger TDR 2000/2. I need to put in the Velocity Factor of the cable to be tested which is a 240mm 4 Core Aluminum SWA, the length of run is about 120M. Anyone have any ideas where I...- roukel01
- Thread
- canada factor
- Replies: 6
- Forum: Electrician Talk | All Countries
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Krypton Factor Time!
Ok, I have three accessories consisting of a lighting circuit, a ELV lighting circuit and a decorative garden water feature and a block of three switches, one for each item, but.. I have only two wires 'T & E' running down to the switches from the JB's linking the main circuit and accessories to...- bobodhi
- Thread
- aus factor time
- Replies: 4
- Forum: Australia
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Circuits on phases
Hi I was wondering if anyone could explain about circuits on phases, on sites that I work on we r given drawings with lighting circuits and power circuits and I get told we need to keep certain circuits on certain phases but dnt knw why, obv you have exp L1 L2 and L3- Cj24
- Thread
- aus circuit circuits factor loads neutral phases power
- Replies: 9
- Forum: Australia
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cable temp factor for 70/90 degrees cable
Hi, I'm in the process of trying to do a "monkey sheet" to enable my apprentices's to make correct cable size calculations. I'm happy about the use of the 1.2 factor used for 70 degree rated cable but I havent come across the 1.28 factor for 90 degree cable before. I would be most grateful if...- bullybully45
- Thread
- cable degrees factor
- Replies: 1
- Forum: Electrical Wiring, Theories and Regulations
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Volt Drop Calculation
Appendix 4 in the regs has tables for Current-Carrying Capacity and Voltage drop. I've used these many times with no problems, but i've never had to calculate a cable higher than 25mm. when you look at cables 25mm and higher you see three values for mV/A/m (r, x, & z). Using the calulation...- easymart
- Thread
- cable calculation current factor using volt drop volts
- Replies: 7
- Forum: Electrical Wiring, Theories and Regulations
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Low power factor
hi i'm fabio from italy. i'm searching the costs (penalties) of reactive power request in europe. someone can indicate me some link about reactive power english methodology? thanks- fabio23x
- Thread
- aus factor power
- Replies: 3
- Forum: Australia
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Power factor capacitors
Hi guys. Anyone know of a good web site or formula to work out what Kvar value is required for a 3 phase 4pole inductive motors? Thanks :)- welshmadness
- Thread
- canada capacitors factor power
- Replies: 9
- Forum: Electrician Talk | All Countries
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shower cable
9kw shower to run on a 6.0 swa clipped direct for 30m but for 2 metres it goes through a boiler rm so what is the min amount you guys whould take including a temparature factor in calculation although these results are addiquite i will be running 10.0mm but am i being over the top any thoughts- beaver74
- Thread
- boiler cable factor shower through
- Replies: 6
- Forum: Electrical Wiring, Theories and Regulations
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grouping factors in metal trunking
hi everyone got a querry regarding above. through approx 1.5m om the installation all the main cables run through a 4" x 4" metal trunkning, was wondering if anynone is knowledgable at working the grouping factors out?? got a lot of pvc/pvc running though cheeers- sparkyork
- Thread
- anything cables circuits factor factors something trunking
- Replies: 13
- Forum: Talk Electrician Forum
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