Appliance Cables

No enough information. Voltage ? 3phase ? load power factor? length of the circuit ? What is LCD ?

100 amp, 3 phase & Liquid Crystal Digital (LCD)-Giant Screen

What is the voltage? length of circuit estimate? where are you located? Are you using 3 single conductors + neutral or a cable with 3 conductors + neutral?

This chart gives the cable ampacity http://www.energy-solutions.co.uk/cable_conductor.html

Hi

I think 95 mm2 cable is too big for the installation . You can go for 4cx35 mm2 or 4cx50 mm2 cable size for the installation of LCD . XLPE/SWA cable to be used

Regards

Dhilju

Wareagle is quite correct to ask the questions he has. the distance question has to be answered to allow for voltage drop. The voltage question has to be answered for the same reason. The number of conductors and wether or not there is a neutral is also a question you must answer. He is trying to help you, help him to do this.

It may also be of interest to know what powerfactor this load has.

Chas

Apply your local standards. Your contractor to maintain his license should follow them, so should you. There are a myriad of concerns these standards consider besides just voltage drop. I will list a few rarely considered criteria that have made more than one installation to self destruct somewhere:

• Added heat load effects in summer causing ignition.
• Thermal expansion differences at splices while under a load during summer and winter.
• Surge current
• Insect damage
• Future expansion
• Insulation breakdown rate

This is not an exhausted list of the concerns. To say if your contractor is over or under sizing your installation, more information must be known about the installation that just the average load of one device.

P.S. What kind of an LCD system draws 42.3 kw of power?

95 may seem overkill, but what about future expansion? A larger cable will mean less voltage drop and less resistance.