Outdoor Lighting Installation Guide
Maximum Permissible Intensities
The maximum intensities permissible are:
- 16 In ……………………… 75 A
- 25 When ……………………… 100 A
- 50 At ……………………… 150 A
- 95 When ……………………… 230 A
- 150 By ……………………… 305 A
Height Supports Effort (kg)
- Wood (Class III) 9 10 460
- Wood (Class V) in November 1213 845
- Concrete “September 11, 1913 250, 400, 630, 800 and 1000
- Concrete “Celosia 1214 1000 and 2000”
Overhead Line Protection
For adequate protection of the overhead line from surges and short circuits, fuses of gL Gg class are placed. These fuses must be dimensioned depending on the section of cable to be protected. Fuses are protection elements that safely disconnect very high DC currents. These fuses for overhead wires may be twisted, 63, 100, 125, 160, 200 and 250 A.
Urban Density Classifications
High Density
High-density urban areas include: BT switchboard, CT cabinet, and urban referral installation link, and switching boxes.
Medium Density
Medium-density urban areas and new developments include: BT box distribution in CT cabinet, urban referral link facility, and CS.
Residential
In the case of residential or single-family housing developments, distribution boxes are used.
7. Luminaires
7.1. Features
The lights used in outdoor lighting shall conform to the UNE-EN 60 598 -2 to 3 and UNE-EN 60 598 -2 to 5 in the case of external projectors.
7.2. Electrical Installation of Suspended Lights
The connection is made through flexible cables, entering the light with sufficient slack to prevent fluctuations. These fluctuations can cause harmful efforts in cables and terminals. Use devices that do not decrease the degree of protection IP fixture X3 UNE 20,324.
The suspension of the luminaires shall be protected by steel cables from corrosion. These cables should be of sufficient size for holding a mechanical strength with a safety factor of not less than 3.5. The minimum height above ground level is 6 m.
8. Electrical Equipment Points of Light
Electrical equipment points of light may be internal or external type, and installation will be appropriate to the type used.
Electrical equipment for outdoor installation shall have a minimum degree of protection IP54, IK 20,324 UNE UNE-EN 8 as 50,102, and will be assembled at a minimum height of 2.5 m above ground level. The input and output cables will be at the bottom of the enclosure.
Each point of light must be individually compensated. The power factor needs to be equal to or greater than 0.90. They must also be protected against overcurrent.
9. Protection and Indirect Contact
The luminaires are Class I or Class II.
Accessible metal parts of the media luminaries will be connected to ground. Excluded from this requirement are those metal parts with double insulation that are not accessible to the general public. To access the interior of the lights that are installed at a height less than 3 m above the ground or in an area accessible to the public, special tools will be required. All metal structures which have a distance less than 2 m of the metal parts of the exterior lighting must be equipotential bonded together. It will be necessary to determine whether these metallic elements can transfer dangerous voltages to distant places (e.g., fences). In this case, take appropriate measures to prevent this by isolation of one party simultaneously accessible by insulated joints, by grounding separate metal structures, or other measures, if necessary.
When the lights are Class I, they shall be connected to the grounding point of support by a unipolar insulated cable. This cable should have a rated voltage of 450/750V, be coated yellow-green, and have a minimum cross section of 2.5 mm2 of copper.
10. Grounded
The maximum ground resistance shall be such that over the life of the facility at any time of year, no contact can produce voltages over 24 V in the accessible metal parts of the system (media, metal boxes, etc.).
Grounding of the brackets can be made by networking a common ground for all lines that start at the same table for protection, measurement, and control.
In ground networks, at least one ground electrode will be installed in 5 media luminaries, and always in the first and the last stand of each line.
The driver of the ground network connecting the electrodes must be:
- Bare, copper, 35 mm2 minimum section, if part of Earth’s own network, in which case go out of the pipes of power cables.
- Insulated cables with rated voltage 450/750V, covered with yellow-green, with copper conductors of minimum 16 mm2 section for underground, and in the same section as the phase conductors for networks posadas, in which case shall the inside of the pipes of power cables.
The conductor of each bracket connecting the electrode, or the ground network will be an isolated unipolar cable of rated voltage 450/750 V, coated yellow-green color and minimum diameter of 16 mm2 copper.
All circuit connections of land shall be made through terminals, fasteners, welding, or items that ensure good contact and are protected against corrosion.