3-5-5

The nec defines nickel cadmium battery nominal voltage at how much Per cell

1.2 V

The battery that Uses lead dioxide for the positive plate and sponge lead for the negative plate is the nickel cadmium type of battery. True or false

Faults

Nickel cadmium batteries provide backup power for what percentage of substations

Five

When a substation DC system charger is supplying a trickle charge to maintain a pre determined voltage level to a bank of batteries, it is called what type of charge

Float

The reason for ventilation in a substation battery Room is to avoid the potential buildup of what gas

Hydrogen

DC power used to operate switch gear and a substation is an example of what type of load

Momentary

According to IED standard for 85, the load supplied by a bank of substation batteries must be divided into how many types

Three

Lead acid batteries used in a substation battery Room are normally rated at how many votes each

To

N FPA 70E requires ventilation to ensure the concentration of free hydrogen gas inside a Room where batteries are contained does not exceed 1%. True or false

True

What type of battery is sealed, when the exception of a valve that opens automatically to relieve excessive internal pressure

Vibrate related

Supervisory control and data acquisition is an example of what type of load that is supplied by a bank of batteries when there is substation outage

continues

What osha standard requires water facilities to be provided within the work area for immediate emergency use when working with substation batteries

1910.151 C

The regulation that osha refers to for personal protective equipment that shall be available to employees performing battery maintenance is N FPA 70E what

320.8

Common nominal voltages for a bank of substation batteries are a hunderd 20 V DC, 240 V DC, and what

48 V DC

The industry standard for substation battery States that they must have a duty cycle of how long when no recharging is available?

8 hours

A good neutralizer for battery acid is what

Baking soda

95% of the complete storage capacity of a substation battery bank should be replaced by its charger in not more than how many hours

Eight

April detective apron is not required when working with nickel cadmium substation batteries. True or false

False

The substation battery charger is connected to the negative terminal of the 1st cell. True or false

False

A battery Room ventilation system is an example of what type of load that the batteries must be able to support in case of an outage

Non continuous

All tools used to work on a bank of batteries must be what and equipped with handles insulated from max volt

Non sparking

Substation batteries are charged by direct current using an AC to DC what

Rectifier

If a battery has a crazed container, it means it has what which usually occurs in the corners of the battery

Small spiderweb fractures

Spent batteries must be sent to a battery manufacturer or approved recycler, according to who

rcra