Safety & Tagging
These white tags can be applied by an individual without contacting the tagging authority
What is a Caution Tag?
This voltage level is identified as being OVER 600V
What is high voltage?
Potential hazards like tap changer or bushing failure, backfeeds, & explosions and fire from failure could occur when working on this piece of equipment.
What is a transformer?
This relay function will quickly trip a breaker at a remote station for a local condition
What is Direct Transfer Trip?
This ANSII number indicates an undervoltage condition
What is 27?
These Safety Tags are applied to high voltage equipment, which allows the worker named on the tag to operate the equipment for test or adjustment?
What is a Permissive tag?
This roundabout bus configuration uses multiple breakers and disconnects to maintain a reliable power flow.
What is a ring bus?
The bypassing of this tag was the root cause of the Woodbury incident
What is a red tag?
This relay compares the voltage and current to determine the direction of the fault.
What is a directional relay?
This ANSII number identifies an AC Time Overcurrent relay.
What is 51?
These Safety Tags are applied to low voltage equipment (less than 600 volts) and locally logged by a worker whenever isolating equipment for maintenance work?
What is a Workers Blocking tag?
This bus configuration utilizes a main bus as well as a transfer bus
What is main & transfer bus?
This test device must be used when testing for potential on a 230kV line
What is a Fameca?
This relay will trip on time delay curve, which is dependent on the amount of fault current.
What is overcurrent?
This ANSII number is used for an AC circuit breaker
What is 52?
This pre-job briefing may include identification of hazards in the work zone, delegation of job tasks, or a discussion of the tools required for the job
What is a TAILBOARD?
This bus configuration has a single bus with a tie breaker
What is single bus with tie breaker?
Tightly bound shock absorbing sections is what you should find when inspecting this piece of safety equipment before use
What is a shock absorbing lanyard?
This piece of protective equipment acts like a fuse, but has protection enabled along with reclosing and can be found on a branch circuit
What is a fuse saver?
This ANSII number is used for a lock out relay device like a multi-trip
What is 86?
You must do this to your high voltage rubber gloves when damage is detected during testing of PPE prior to use, when any tear or puncture is evident or when any cut or abrasion exposes the second color of the rubber.
What is replace them?
Relay protection can be found on this type of one line schematic
What is the one-line control?
The operation of these audio and visual indications is expected when testing a known live source with the Tag 200?
What are the LEDs and buzzer?
This device is used on a distribution line to compensate for voltage loss.
What is a capacitor?
This ANSI number is used for a reclosing relay
What is 79?