Factors that influence the life of incandescent light bulb

December 29, 2014 by Sarah Longfellow

FacebookTwitterGoogle+PinterestTumblrStumbleUponLinkedInBlogger PostDeliciousDiggShare

incandescent light bulbIncandescent light bulb does have a lifecycle, which will normally be far less than the evaluated amount of hours on the set. There are quite a lot of motives for this.
Firstly, the rated amount of hours is usually achieved in the test center under perfect conditions. This comprises of a stable voltage as well as electrical frequency, continuous temperature, no vibration, plus no on/off cycles. Actually, the filament (which is the fine, wire-like material in the light bulb) defines the life cycle of the light bulb, so no matter what affects the filament will indeed change the light bulb life.
Numerous factors influence the life of a standard incandescent bulb.
Operating Voltage
Shock and Vibration
Inrush Current
On/Off Cycling
Temperature
Let us start with the shock and vibration factor. The light bulb’s gentle filament will fail when exposed to shock and vibration in the course of shipping and handling, while handled by the customer, and when in a fitting which is exposed to shock or/and vibration. Even the closing of doors and high winds, as well as storms, cause vibrations over the walls plus ceilings of households, and this affects the bulb’s filament.
Operating voltage have effects on the filament if the power to the bulb varies and is mostly lesser than the evaluated amount, the light bulb will last longer, then if the voltage is mostly higher, then the bulb’s filament will have a short life span. Spikes in power also have a harmful effect on the filament thus reducing its life cycle.incandescent light bulb
The inrush current transpires when a light bulb is switched on and is destructive to the bulb’s filament. When you switch the bulb on, the flowing current can be ten times more than the average operating current. The thermal shock triggered by the gush of inrush current causes the damage.
Operating Temperature has effects on the bulb’s filament in that a greater temperature shortens the lifespan of the bulb. Using light bulb wattage higher than what it is evaluated for will cause increased temperatures and then shorten the bulb’s life. Aeration around a light bulb will increase its life span. Many fittings have little ventilation and become scorching inside, plus smaller wattage light bulbs. Your light bulbs will be prolonged in enclosed fittings if the lowest wattage is used. It will provide an ample amount of light.
The On/Off cycling exposes the bulb’s filament to the critical effects of the current mentioned above; each time the light bulb is switched on. Therefore, the life of the bulb can be extended by lessening the amount of times the light bulb is switched on and off. It is expedient to leave the light bulb on if you mean to go back into the room in a couple of minutes.

Leave a Reply

Your email address will not be published. Required fields are marked *