Lighting of the new San Mames stadium by Airfal

san mam

The first stone was laid on 26 May 2010 and the construction of the new stadium officially began on June 25 th,  the same year . The construction of the stadium took place in two stages: the first one, already completed, implied the construction of the two sides , the last step being the VIP lounges. It is estimated that the stadium will be fully completed in spring 2015, however the soccer team is already playing home games in the new stadium.

Lighting was regarded as a key element for the façade. Semi- transparent and waterproof luminaires were chosen for security reasons, such as the evacuation of the stadium for example.

White tone metal elements covering the stage helped to improve the visual aspect of the stadium, and to define its identity. At night, when there is no sporting event , the facade is illuminated and is  a true landmark in the city light . During the matches , it is the stadium interior lighting that take over.

Most lights used inside the stadium have been specially designed for Als Lighting, the company in charge of lighting, and manufactured by Airfal International. The architect is Cesar Azcárate , business ACXT – from  Idom .

Among the models used, not specifically designed for this stadium, there are two tubular polycarbonate fixtures, which are low consumption and high resistance to IP67 IK08 , and adapted to the lighting requirements of the entire project.

San-Mamés

For more information :
Ester Ariza Espierrez
Dep. Prensa
Airfal International

Light level recommendations in the industry and retail

Following our previous post, we enclose a guide to the recommended light level for different industrial and commercial activites:
Chemical activities; Transport industries such as train stations, gas stations, car garages, naval docks; Offices and administrations, Shops, merchandise shelves, small shops….

This guide gives the recommended minimum lighting levels for different types of work activities

Lighting should be sufficient to enable people to work, use facilities and move from place to place safely and without experiencing eye-strain.
If people have difficulty doing their job because lighting is too low then setps should be taken to improve it. However, if an area measured falls outside these levels, it does not necessarily mean that the whole lighting system needs to be modified. Other measures such as task-specific lighting might be more appropriate. Generally speaking, the finer the detail, the higher the light level required.

Outdoor light level is approximated at 10,000 lux on a clear day. In enclosed areas like commercial buildings, the light level may be as low as 25 – 50 lux. Additional lighting equipment is often necessary to compensate these low levels of lighting.

optimum level lighting

Recommended light levels for common types of working activities

A minimum level of illumination is required to read correctly and without fatigue objects and thus perform correctly (and sometimes safely) the intended task .
The level of illumination required depends on the activity to perform
Light Level or Illuminance, is the total luminous flux incident on a surface, per unit area. Usually, standards and norms define the light levels by task. The difficulty is to define the space in which the task is to be performed. The amount of light being given off by a particular source, in all directions, is called luminous flux (or “luminous power” or “lux”) and is a measure of the total perceived power of light. It is measured in lumens.
Measuring Units Light Level – illuminance
Illuminance is measured in foot candles (ftcd, fc, fcd) (or lux in the metric SI system). A foot candle is actually one lumen of light density per square foot,one lux is one lumen per square meter.
• 1 lux = 1 lumen / sq meter = 0.0001 phot = 0.0929 foot candle (ftcd, fcd)
• 1 phot = 1 lumen / sq centimeter = 10000 lumens / sq meter = 10000 lux
• 1 foot candle (ftcd, fcd) = 1 lumen / sq ft = 10.752 lux
How to measure ?
A light meter (also called lux meter) is very useful. A light meter measures the amount of visible light illumination in a given area tested. Illumination is expressed in units of LUX (metric) orFoot candles (English).

optimum levels lighting

The cost of lighting – infographics

Here is an infographics from the website lamps.com, featuring the cost of using incandescent light bulbs, CFL bulbs (comact fluorescent bulbs) or LEDs.

The average lifespan of a led is 50 times longer than an incandescent light bulbs. Price is also significantly higher, even nif LEDs are getting cheaper 

However, we have to bear in mind that incandescent light bulbs are less used than in the past. In the USA, incandescent light bulbs are disappearing In 2014. In Europe too, incandescent light bulbs are being phased out. By switching to compact fluorescent bulbs,  companies and industries can reduce their negative contribution to climate change and save money at the same time.

The initial higher cost is quickly recovered, as these bulbs use only a quarter or a fifth of the electricity used by incandescent bulbs, and last much longer. Over its lifetime, a single compact fluorescent bulb will save you approximately 250 $, and their price is decreasing.

cost of lighting