Appendix to Hydropower Safety Policy

Question 1

What are the 4 rules for individual employees

Answer 1

1. Shall not use or be under the influence of intoxicants or illegal drugs while on duty
2. No fighting
3. No scuffling or horseplay
4. Don’t turn air hoses on youself

Question 2

4 practices for the individual employee

Answer 2

1. Never distract another worker unless it is necessary for the work or something unsafe happens
2. Keep supervisor informed of mental or physical conditions that may interfere with safe work performance.
3. Remove hazards or report them to your supervisor
4. Attend and participate in safety meetings

Question 3

What is housekeeping

Answer 3

Should not be mistaken for a push broom effort. It means more. It is the orderly arrangement of tools, equipment, supplies and storage facility. It is a source of individual pride, is a practical method of increasing efficiency, reduces accidents, and improves morale.

Question 4

Classes of fire

Answer 4

Class A- ordinary materials, such as wood, paper, rags, and rubbish
Class B- Flammable liquids
Class C- in or near energized electrical equipment
Class D- burning metals such as magnesium

Question 5

Rules for fire prevention

Answer 5

1. Signs prohibiting smoking and open flames shall be strictly observed.
2. Rooms protected by automatic fire equipment with out a time discharge and audible alarm must have the doors blocked open.
   a. Equipment must be made inoperable and doors blocked for any work other than filtering.
   b. For filtering or transferring block the door but leave the fire equipment operation if equipped with a discharge delay and audible alarm.
3. Wiping rags and waste must be kept in tightly closed safety containers.
4. Liquids which are highly volatile and flammable shall be stored and transported in approved containers.
   No open or glass containers because when mixed with air it could be explosive
5. All apparatus must be bonded together and grounded.

Question 6

eye protection must be worn (ful covered goggles or face shield

Answer 6

Drilling or chipping stone, brick or concrete
grinding, buffing, or wire brushing
over head drilling or power drills
welding, cutting, or burning
handling acids, caustics, chlorine or similar materials
cleaning or scaling metal
machining brass

Question 7

Eye wear practices

Answer 7

Full cover goggles should be worn when abnormal amounts of airborne particles are present.

Question 8

hearing protection

Answer 8

Mandatory in all areas where noise level is above 85 DB

Question 9

At what oxygen level must you use a self contained breathing apparatus or air line respirator

Answer 9

19.5%

Question 10

What are the three groups of contaminants which require respiratory protection

Answer 10

1. gaseous
2. particles
3. Gaseous and particles

Question 11

What is gaseous

Answer 11

immediately dangerous to life: So dangerous the individual would immediately have breathing difficulties
minimum use: SCBA, air line respirator, gas mask designed for specific gas.
not immediately dangerous to life: gases which wouldn’t affect a persons ability to escape. Minimum protection air line respirator or chemical cartridge respirator

Question 12

Where must head protection be worn?

Answer 12

Switchyards, where cranes are being operated, areas which maintenance, repair, construction or contractor activities are in progress, areas around scaffolds or other elevated work, and anywhere designated by the project supervisor.

Question 13

What must be said to visitors

Answer 13

The following rules are necessary to prevent injury to persons, interruptions to electrical service, damage to equipment, and will insure a safe trip through the plant.

1. Stay close to your tour guide and follow all instructions
2. do not touch equipment or open cabinet doors
3. Expect loud and unusual noise as it is common in a power plant
4. Failure to observe these rules will immediately end the tour and dismissal from the plant.

Question 14

Clearance and grounding rules

Answer 14

1. Treat all electrical equipment as energized unless properly cleared.
2. Only approved grounding devices shall be used. Ground switches must not be used in lieu of safety ground.
3. Person holding the clearance shall be responsible for placing and removing all grounds.
4. Do not ground supposedly dead circuits without feeling out with a ground stick or high voltage tester.
5. When attaching grounds fasten ground end first . Line or equipment end must never be attached by hand
6. When removing grounds never remove ground end until after clamp has been removed from the line or equipment.
7. All work on grounded circuits must be sone between grounds as close as practical.
8. Phase and neutral reactors shall not be worked on unless de energized.
9. Grounds may be removed for purpose of testing but must be placed back on immediately after test is complete and you must have the approval of the clearance holder.

Question 15

Power plant operations rules

Answer 15

On entering or leaving remote plants notify the operator in control of the station.
Notify the shift operator when entering or leaving after hours or before designated work hours.
Electrical tools and portable lighting used in damp areas must be plugged into GFI outlets.

Question 16

Outdoor structure rules

Answer 16

1. Never ride crane hook or crane loads

2. Never approach an open spillway with a boat.

Question 17

Outdoor structure practices

Answer 17

A. never throw or drop anything from dam roadway or forebay structure
B. Stand clear of cables or tackle that may break under strain when gate lifting equipment is used
C. Ensure safe footing and guard against falls when working on outdoor structures, height of work and weather dictates the use of barricades, safety harness and lines.
D. Working on trash racks or removing debris workers should wear life jackets or safety harness.

Question 18

Tunnel sumps and valve pits rules

Answer 18

1. Never enter tunnels or sumps that can be flooded by lines or pumps until they are properly positioned and tagged.
2. Always test and monitor air quality while working
3. Follow all confined space requirements

Question 19

Tunnel sumps and valve pits practices

Answer 19

Assure fresh air practices to work area are adequate and stale air has been replaced prior to inspection or beginning work.
Safety chains and railing should be kept in place at all times the entrance is unattended.

Question 20

Turbine Pits, Generators, and Actuators Rules

Answer 20

1. Employees must not enter the machine unless the person in charge of the work knows and notify them when you leave the work area.
2. All workers must be out of a unit and accounted for by the person in charge prior to releasing the unit for service.
3. Never position any part of your body on or between wicket gate arms or ring unless the servo motors are blocked and tagged.
4. Remove all tools, personal effects, and foreign material from a unit prior to releasing it.
5. Stand in a position to maintain balance when placing or removing blocks on servo motor. Keep hands and fingers cleared.
6. Headgates must be placed prior to replacing wicket gate shear pins or links.

Question 21

Turbine Pits, Generators, and Actuators Practices

Answer 21

1. Keep proper clearance from mechanical and electrical parts of a generator or turbine. Do not step on parts that can move.
2. Be careful when working on or near the collector rings or commutators when unit is running. Empty shirt and coat pockets.
3. Do not enter CO2 protected generator unless the system is turned off at the electrical control. If work needs to be performed a clearance is needed.
4. Only enter a generator after a CO2 dump with a breathing apparatus and only for an emergency. If possible wait and use an oxygen analyzer.
5. Cleaning or working in the actuator cabinet while in service stay clear of rotating and moving parts, such as flyball motor, oil pumps, valves, restoring cables, sheaves, and linkages.
6. Stay in the clear of moving parts when tightening wicket gate packing glands.

Question 22

Penstocks, scroll case, draft tube, and water wheel rules

Answer 22

1. Gate must be set, backfill valves properly positioned, and tagged properly to unwater a unit. Check water level and pressure on the door prior to opening.
2. Verify proper tagging and have permission prior to entering water passages of the turbine.
3. Be sure the servo motors are blocked prior to going through the wicket guys
4. When inspecting the draft tube a suitable means of entering and exiting like a ladder.
5. Adequate ventilation for turbine or waterway inspection, maintenance, or repair

Question 23

Penstocks, scroll case, draft tube, and water wheel practices

Answer 23

1. scroll case floor near the speed ring should be washed and covered to eliminate slick areas.
2. Safety harness and lines used when inspecting turbine and discharge ring and during scaffold insulation.
3. Close doors if left unattended overnight.
4. Keep water level a short distance below turbine during inspections to reduce or prevent injury.
5. Use exploring sticks if floors are covered in water to prevent falling into hles or stumbling on uneven surfaces.
6. Avoid strain when operating large valves. Use help and leverage devices.

Question 24

machine guard rules

Answer 24

1. Never remove or replace a machine guard while a machine is operating
2. Never operate a machine unless all guards are in place. Before putting a machine back in service all guards must be replaced.

Question 25

Machine guard practice

Answer 25

All machines shall be adequately guarded to protect personnel from exposed moving parts and belts

Question 26

Maintenance equipment rules

Answer 26

1. Do not use grinding wheels above manufacturing rating, or legible speed ratings. Don’t keep wet grinding wheels submersed.
2. Maintain minimum clearance between grinding wheel and tool rest.
3. Full cover goggles or face shield and hearing protection required when grinding
4. Never use compressed air to remove waste material from machines, workbenches or other areas.

Question 27

Maintenance equipment practices

Answer 27

1