Frequently Asked Questions (FAQ)


 
Dear customers of Headingonline.com!
Please find enclosed the answers to the most frequently asked questions. Should you have any further questions, please do not hesitate to contact our support team: email support your question.
 
UPS (Uninterruptible Power Supplies)
Q: What is the difference between the power as specified in VA and the power specified as Watts?
A: The VA specifies the apparent power. Apparent power includes the reactive and distorsion power component which is not actually abosorbed by the load. The power specified in Watts is the real power absorbed by the load. The ratio between the apparent power and the real power is called the power factor (PF).
UPS - How to discharge and recharge the battery?
Q: UPS - How to discharge and recharge the battery?
A: - Disconnect the power plug from the AC socket.
- keep connected devices to work normally.
- It's fully normal that the UPS begins to beep once every 5 seconds in backup mode.
- If the pc is connected to the UPS, save all data and prepare it to be turned off.
- In case the UPS begins to beep every one second, turn the PC off.
- Connect the power plug to the AC socket again and recharge the UPS for 8 hours.
IP (Ingress Protection) Rating Standard - Lighting
 
Q: What is IP rating?
A: The (Ingress Protection) standard describes a uniform system for classifying the degrees of protection provided by the enclosures of electrical  equipment.
Example, if the light rating has an IP Rating of 44 which means:
4: Protected against solid objects greater than 1mm
4: Protected against water sprayed from any direction - limited ingress permitted
First Numeral - Protection against ingress of foreign bodies e.g. tools, dust, fingers, etc. (6 stages)
1 2 3 4 5 6    
Protected against solid objects with a diameter of 50mm and over (e.g. accidental insertion of hands) Protected against solid objects over 12mm (e.g. jointed fingers) Protected against solid objects over 2.5mm (tools) Protected against solid objects over 1mm (small wires) Protected against dust - limited ingress permitted (no harmful deposit) Totally protected against dust    
Second Numeral - Protection against ingress of liquids. (8 stages)
1 2 3 4 5 6 7 8
Protected against drops of condensed water. Drops of condensed water falling on the enclosure shall have no harmful effects Protection against drops of liquid. Drops of falling liquid shall have no harmful effect when the enclosure is tilted at an angle up to 15 degrees from the vertical Protection against rain. Water falling in rain at an angle equal or similar than 60 degrees with respect to the vertical shall have no harmful effect Protection against splashing. Liquid splashed from any direction shall have no harmful effect Protection against water jets. Water projected by a nozzle from any direction under stated conditions shall have no harmful effect Protection against conditions on ship decks (deck watertight equipment). Water from heavy seas shall not enter the enclosures under prescribed conditions Protection against immersion in water. It shall not be possible for water to enter the enclosure under stated conditions of pressure and time Protection against indefinite immersion in water under specified pressure. It shall not be possible for water to enter the enclosure.



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Headingonline.com - Electrical Wholesale, Electronic Components, Power Supply, Computer Parts.
Headingonline.com - American Power Conversion (APC) - Uninterruptible power supply, UPS, Battery Replacement.
Headingonline.com - Electrical Wholesale, Electronic Components, Power Supply, Computer Parts.
Headingonline.com - Electrical Wholesale, Electronic Components, Power Supply, Computer Parts.
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