How do you calculate kw to cable size?
Ok, let’s dive into calculations…
- Consumed Load = Total Load · Demand Factor: Consumed Load in KW = 80 · 1 = 80 KW.
- Consumed Load in KVA = KW/P.F.: Consumed Load in KVA = 80/0.8 = 100 KVA.
- Full Load Current = (KVA · 1000) / (1.732 · Voltage): Full Load Current = (100 · 1000) / (1.732 · 415) = 139 Amp.
How do I calculate cable size needed?
Divide the voltage running through the cable by your target current. If, for instance, 120 volts will act on the cable, and you want 30 amps to run through it: 120 / 30 = 4. This is your target resistance, measured in ohms.
How many watts can 1.5 mm cable carry?
Choosing the correct size cable
| Conductor Size | Current | Maximum power (Watts) |
|---|---|---|
| 1.0 mm2 | 10 amps | Up to 2400 Watts |
| 1.25 mm2 | 13 amps | Up to 3120 Watts |
| 1.5 mm2 | 15 amps | Up to 3600 Watts |
| 2.5 mm2 | 20 amps | Up to 4800 Watts |
How do you calculate cable size in horsepower?
Size of Cable for Branch circuit which has Single Motor connection is 125% of Motor Full Load Current Capacity. Example: what is the minimum rating in amperes for Cables supplying 1 No of 5 hp, 415-volt, 3-phase motor at 0.8 Power Factor. Full-load currents for 5 hp = 7Amp. Min Capacity of Cable= (7X125%) =8.75 Amp.
What size wire do I need for a 1 hp motor?
| Single Phase (230 Volt) – Wire Size Selection Guide* | ||
|---|---|---|
| HP | Cable Length | |
| 1/2 | 14 | 14 |
| 3/4 | 14 | 14 |
| 1 | 14 | 14 |
How many outlets can I put on a 20 amp breaker?
10 receptacles
Can I replace a 20 amp breaker with a 15 amp breaker?
Can I replace a 15 amp circuit breaker with a 20 amp circuit breaker? The answer: It’s possible, but not advisable without an electrician evaluating the situation. You should never just upgrade from a 15-amp breaker to a 20-amp one just because the current one is tripping.
Is it OK to put a 15 amp outlet on a 20 amp circuit?
Most household electrical receptacles have a 15-amp rating, but they connect to a 20-amp circuit. You can use a device that has a 15-amp plug with either a 15- or 20-amp receptacle. A 20-amp receptacle is for heavy-duty appliances and power tools, such as air compressors.
Do I need a 15 or 20 amp switch?
A rule to go by is. If you have one or two lights on that one switch, then a 15 amp is good. But if you have a lot of lights on that one switch I would just go with a 20 amp switch to be safe.