assignment
perlasai
Chapter16.pptxChapter 16: electrical service
Electrical service
Crucial to today’s business needs
Create a mitigation plan to address:
Monitor the lines and filter out spikes
Provide additional power in case of a brownout or partial outage
Provide sufficient temporary power in case of total outage
Makes transition from normal power supply to emergency power supply without loss of service
Risk assessment
Electrical problems to monitor:
Voltage sag – commonly known as “brownout”
Voltage spikes
Voltage surge
Electrical Noise
Electrical blackout
Your building’s power system
In the beginning, computer equipment rooms were on their own electrical system – isolated from the rest
Today, computers are throughout the building sharing power will other devices as well
Monitoring is needed to ensure the problems are not stemming from the inside
Building a power protection strategy
Isolate all electronic equipment from power surges by use of small surge protectors
Use line conditioning units – smoothing out the voltage variation
Use Uninterruptable Power Supply (UPS) systems for critical devices
Use electric generators when needed
Physically secure the electrical support equipment
Surge protection
Most common electrical protection device
Items to look for:
Joule ratings
Surge amp ratings
UL 1449 voltage let-through rating
Response time
All-Wire protection
Telephone line support
Clamping voltage
Line conditioning
Ensures that your equipment always received the same steady voltage
Also screens out noise on the power waveform
Also advised for telephone lines connected to computers
Should be installed between a UPS and power source
Uninterruptible power supplies
Works best in conjunction with surge protection and line conditioning equipment
Three basic types:
Basic UPS – provides battery backup against power outages
Line Interactive UPS – provides voltage regulation as well as battery backup
Online UPS – directly between the line power and equipment w/ battery backup
UPS Batteries – provide the power during a blackout
UPS “Size” – determine time to run off of battery when selecting for critical systems
Uninterruptible power supplies – cont’d
Switching to batteries – battery power begins once UPS determine incoming voltage has stopped
UPS Locations – mainly data centers/server rooms but can but located at each workstation
Advanced UPS features – can start an orderly shutdown of equipment.
UPS Testing – ensure the battery and systems are running efficiently and prepared for emergency
Power generators
Required for a facility that absolutely must have power
Sizing your generator – determine maximum power needs to get correct size
Switching time – determine how much time can pass before generator turns on
Generator testing – conduct regular test to ensure generator meets are required conditions
Work with Public Utilities
Environment and Regulatory Issues – research to ensure in compliance
Emergency lighting
Necessary during power outage
Required by state and local laws
Lights should be tested/checked monthly
summary
Electricity is a power and necessary resource for business operations
In absence of power, we need secondary sources ready as to not to interfere with business operations
