ACADEMY OF KNOWLEDGE
Miscellaneous technical information
Minimum Bend Radius Calculation.
To obtain the minimum bending radius without damaging the cable, multiply the cable diameter (D) by the value indicated in the catalogue to obtain the possible radius (r).
Description found in catalogues (Example): Min. bending radius: 10 x d.
Calculation of voltage drop.
1-) Single-phase system
The percentage voltage drop will be given by:
2-) Three-phase system
The percentage voltage drop will be given by:
Where:
V = voltage between phases (V)
L = cable length (km)
R = cable AC resistance(W/km)
X = cable inductive reactance (W/km)
cosj = power factor of the load
Average consumption of domestic appliances
Conductor Equivalence - AWG / MCM x mm²
HIGH VOLTAGE FUSES FOR DISCONNECTORS
Lamps
Conductor selection
Parts of the wooden coil
Legend
| A | FLANGE DIAMETER mm |
| B | EXTERNAL BARREL DIAMETER mm |
| C | INTERNAL WIDTH mm |
| D | FLANGE THICKNESS mm |
| E | EXTERNAL WIDTH mm |
| F | BARREL STAVES THICKNESS mm |
| G | CENTER HOLE ( PS ) |
| H | QUANTITY OF BOLTS PC |
| I | BOLTS DIAMETER Inches |
| J | BOLTS LENGTH mm |
| K | DRIVE HOLE DIAMETER mm = 2 |
| L | DRIVE HOLE C-C DISTANCE mm |
| M | CABLE HOLE DIAMETER mm = 1 |
| N | CUP / FLAT WASHERS DIAMETER mm |
| O | DIAMETER OF BARREL END SUPPORT DISC mm |
| P | TICKNESS OF BARREL END SUPPORT DISC mm |
| Q | CENTER SUPPORT DISC DIAM mm |
| R | CENTER SUPPORT DISC THICKNESS mm |
| S | OUTER LAGGING THICKNESS mm |
| T | OUTER LAGGING WIDTH mm |
| U | OUTER LAGGING LENGTH mm |
| V | OUTER LAGGING QUANTITY pc |
| X | WEIGHT CAPACITY = Kgs |
| Z | THICKNESS WOOD TOLERANCE +/- 2mm |
Dimensions of wooden coils
