Overhead Equipment Safety Procedures

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Questions and Answers

Who should not accept climbing orders from workmen?

Experienced workmen

Only the person in charge or deputed personnel (correct)

Safety officers

Any supervisor on site

What must the person in charge do before instructing workmen to climb?

Clarify which sections are live and which are dead (correct)

Assign roles to each worker

Provide first aid training

Ensure all safety equipment is checked

What is the responsibility of those giving climbing instructions concerning danger signals?

Ensure workers wear safety gear

Install additional lighting around the site

Correctly fix danger discs or lamps (correct)

Monitor weather conditions

Before making any line live after work completion, what should the person in charge ensure?

That all men and materials are withdrawn from the danger zone Signup and view all the answers

What special attention is directed to persons in charge of painting structures?

To observe the climbing instructions rule Signup and view all the answers

What should occur before changing worn-out rail joints?

Inform the electrical department Signup and view all the answers

Who is responsible for inspecting the track after work on the permanent way is carried out?

The Chargeman-in-charge of track bonding Signup and view all the answers

What should the Chargeman arrange before commencing repairs or alterations to overhead equipment?

Cut off power from the equipment after consulting the TPC Signup and view all the answers

What is required when repair or adjustment work on overhead equipment necessitates that a train proceed cautiously?

An authorised person must be present to show the prescribed signals. Signup and view all the answers

What must be done before commencing work on overhead equipment?

Caution Orders must be issued by the responsible TFO/OHE. Signup and view all the answers

What is the policy regarding alterations to equipment that may infringe standard dimensions?

Sanction must be obtained from the DEE/Tr.D if infringement is unavoidable. Signup and view all the answers

What precaution must be taken when working with cranes near overhead equipment?

All movements must be carefully controlled to avoid fouling equipment. Signup and view all the answers

What is required when working a crane adjacent to overhead equipment in an emergency?

Overhead equipment staff must standby if notified. Signup and view all the answers

What must be done before any work on electric locomotives in specific locations?

Take all precautionary measures to ensure safety. Signup and view all the answers

Who is responsible for ensuring safety while assisting another worker?

The worker in charge of the task. Signup and view all the answers

What happens if a worker encounters a delay due to safety precautions?

They should take reasonable precautions despite the delay. Signup and view all the answers

What precautionary measure is generally recommended to staff working on S & T circuits along with 25 KVAC electrified lines?

Wear rubber gloves Signup and view all the answers

In the event that rubber gloves cannot be used during meticulous work, what alternative measures should be taken?

Split the circuit into sections or earth them Signup and view all the answers

What should overhead line staff do if they notice defects in the pantographs of passing electric rolling stock?

Report the details through emergency channels Signup and view all the answers

Who is responsible for reporting a defective pantograph to the TLC?

TPC Signup and view all the answers

What is a key responsibility of the TFO/OHE regarding breakdown equipment?

Ensure they are always in a state of good repair Signup and view all the answers

What might happen if a circuit with an earth connection breaks?

An induced voltage can appear Signup and view all the answers

What should be included in the reports made by overhead line staff about detected defects?

The number of the electric rolling stock, location, and time Signup and view all the answers

What should be done if electrical equipment is suspected to be live?

Consider all electrical equipment dangerous. Signup and view all the answers

Which of the following tools and equipment must the TFO/OHE maintain in good condition?

All tools, tackles, and ladders Signup and view all the answers

What is required before climbing on vehicles under overhead equipment?

Ensuring the equipment is dead and earthed. Signup and view all the answers

Where should instructions for treating electric shock be displayed?

At stations, inspection sheds, and repair shops. Signup and view all the answers

What action should be taken immediately in the event of electric shock?

Carry out treatment for respiration. Signup and view all the answers

What should be done in case of a fire near electrical equipment?

Isolate the affected part from its power source. Signup and view all the answers

What should be done by railway servants who notice a fire on electrical equipment?

Follow Rule 6.10 for further action. Signup and view all the answers

What must be exhibited at all locations where treatment for electric shock is displayed?

The numbers of nearby hospitals and doctors. Signup and view all the answers

What information should caution notices near electrical equipment convey?

All electrical equipment is considered live and requires caution. Signup and view all the answers

What speed must a Loco Pilot maintain when approaching a neutral section to avoid stalling?

30 KMPH Signup and view all the answers

What must the Loco Pilot do before entering a neutral section?

Switch off power Signup and view all the answers

How far in advance must warning boards be placed before a neutral section?

250 metres and 500 metres Signup and view all the answers

What action must be taken when entering a temporary neutral section?

Lower and raise pantographs Signup and view all the answers

In what situation can temporary neutral sections be established?

In case of sub-station failures or speed restrictions Signup and view all the answers

What is the minimum duration for which warning boards for temporary neutral sections must be provided?

24 hours Signup and view all the answers

What should Loco Pilots do regarding display boards as they approach the neutral section?

Call out all display boards aloud Signup and view all the answers

What is indicated by figures 3 and 4 mentioned in the guidelines?

Locations for switching off and on power Signup and view all the answers

What is the primary responsibility of the ATFO/OHE concerning the tower wagon?

To ensure necessary tools and equipment are available Signup and view all the answers

Who is responsible for performing the monthly mechanical inspection of the tower wagon?

Nominated TXR from the mechanical department Signup and view all the answers

What must occur 48 hours prior to the monthly inspection of the tower wagon?

Advice must be issued to the TXR concerning inspection dates Signup and view all the answers

What is the purpose of stenciling the date of the monthly examination on the sole bar of the tower wagon?

To inform future users of the maintenance schedule Signup and view all the answers

Depending on the tower wagon's usage, who makes the decision on the interval for Periodic Overhaul (POH)?

CEE and CME jointly Signup and view all the answers

Who is primarily responsible for the maintenance and inspection of electric rolling stock and its staff?

Traction Foreman/Rolling Stock (TFO/RS) Signup and view all the answers

What is the role of the Traction Loco Controller (TLC) concerning electric locomotives?

Booking electric locomotives and running staff Signup and view all the answers

In the event of defects in overhead equipment, who must the traction official communicate with for issuing Caution Orders?

Traction Power Controller (TPC) Signup and view all the answers

When should the electrical way and works be inspected?

Regularly as per special instructions Signup and view all the answers

What is a 'Traffic Block' in the context of railway operations?

Blocking a track against all traffic movement Signup and view all the answers

The electrical safety duties of railway servants are governed by which general rules?

General Rules 15.01 to 15.17 and specific numbered rules Signup and view all the answers

When a pantograph needs to be lowered due to defects in overhead equipment, what must be included in the Caution Order?

Exact kilometreage and structure numbers Signup and view all the answers

What duties devolve on the Traction Foreman for electrical way and works?

Carrying out all PWI duties applicable to electrical way Signup and view all the answers

What is required for the movement of tower wagons on running lines?

A competent driver or official must be in charge Signup and view all the answers

Which statement about ladder trollies is true?

They must be accompanied by at least four sturdy men. Signup and view all the answers

Who is responsible for issuing Caution Orders related to ladder trollies?

A supervisor not below the rank of Electrical Chargeman Signup and view all the answers

What action must be taken once ladder trollies are removed from the track?

They need to be secured to avoid any infringement of moving dimensions. Signup and view all the answers

Under what condition can tower wagons be dispatched to the site of an overhead equipment breakdown?

When the TPC requests it. Signup and view all the answers

What does the certificate of competency for operating tower wagons indicate?

The official is qualified after written, oral, and practical tests. Signup and view all the answers

How should the working of ladder trollies be governed?

By established rules and specific Safety Regulations Signup and view all the answers

What precautions must be ensured when ladder trollies are on the track?

They must not be left unattended. Signup and view all the answers

What role does the supervisor play in the operation of ladder trollies?

They must ensure Caution Orders are issued and compliance with safety rules. Signup and view all the answers

When can a loco pilot pass a neutral section with power on?

After receiving a Caution Order from an official. Signup and view all the answers

What should be done with the key once the glass cover is broken to access it?

Keep it in the safe custody of the Station Master. Signup and view all the answers

Who is responsible for advising the Traction Foreman/OHE after the glass cover is broken?

The TPC. Signup and view all the answers

What must occur immediately after the chamber containing live electrical equipment is locked?

The keys must be returned to the authorized person. Signup and view all the answers

What should the ALTO/OHE do if the TPC requests an isolator switch operation?

Carry out the operation and inform the TPC afterward. Signup and view all the answers

What must be confirmed upon parting with keys after carrying out orders from the TPC?

An exchange of PNs. Signup and view all the answers

What should be documented after the key has been removed from an emergency box?

All of the above. Signup and view all the answers

What is the minimum notice period required to be given to the TFO/OHE before arranging for a shut-down?

48 hours Signup and view all the answers

What must be done before issuing a Permit-to-work for maintenance activities?

Test the line for supply and earth the lines Signup and view all the answers

What should be done after carrying out any switch operating as instructed by the TPC?

Lock the switch in the ‘open’ or ‘closed’ position. Signup and view all the answers

What is required before canceling permit-to-work cards?

Confirmation that keys have been returned. Signup and view all the answers

Who is responsible for switching off power from the section when a crow nest needs to be removed?

A person not below the rank of Lineman Signup and view all the answers

Who should sign for the replacement of the glass cover after it has been broken?

The person who replaced the glass. Signup and view all the answers

What should the TPC do after power is switched off for maintenance work?

Instruct the SCOR to stop train movements Signup and view all the answers

In the event of an emergency, who is primarily responsible for switch operation as per specific directions?

The Station Master. Signup and view all the answers

What is required from the Lineman after removing a crow nest or stray wire?

Inform the TPC that the work is completed Signup and view all the answers

What action should the TPC perform regarding log sheets after a shut-down?

Ensure detailed entries of all particulars relating to the shutdown Signup and view all the answers

What should be used to remove crow nests or stray wires safely?

Insulated hooks of approved type Signup and view all the answers

What needs to happen for the power to be restored after maintenance is completed?

The supervisory official must return the Permit-to-work certified Signup and view all the answers

What precaution is typically not required after removing a crow nest or stray wire if power has been confirmed off?

Earthing the lines for safety Signup and view all the answers

What role does the SCOR play during a power shut-down?

Ensures that no train movements occur in the affected section Signup and view all the answers

Study Notes

Overhead Equipment Repair and Adjustment

An authorized person must be present when overhead equipment requires repair or adjustment and trains are to proceed cautiously.
The authorized person is responsible for displaying the signals prescribed in Rule 15.09 and related rules.

Overhead Equipment Breakdown

The TFO/OHE must issue Caution Orders when overhead equipment malfunctions and trains are to proceed cautiously.

Overhead Equipment Alterations and Additions

Any alterations or additions to overhead equipment must not infringe standard dimensions, either permanently or temporarily.
If an infringement is unavoidable, permission must be obtained from the DEE/Tr.D.

Overhead Equipment and Crane Operations

Ensure that covers of tank wagons, funnel of steam cranes, or any other item do not obstruct traction overhead equipment.
Steam or hand-cranes should not be operated near live overhead equipment. All crane movements must be carefully controlled to avoid contacting traction equipment.
Direct blasts from the crane funnel towards overhead equipment, particularly section insulators, should be avoided.
24 hours' notice must be given to the DEE/Tr.D before operating a crane near overhead equipment, except in emergencies.
In an emergency, the TPC must be informed and arrange for overhead equipment staff to standby.
Cranes must not be operated near traction overhead equipment unless overhead equipment staff are present.

Electric Locomotive Maintenance

Staff must take precautionary measures to ensure safety when working on electric locomotives in loco sheds, stabling depots, or on station platform lines.
Safety should not be compromised due to time or traffic constraints.

Personal Safety

Each individual must ensure their own safety, except when assisting another person, in which case the person in charge is responsible for the safety of both themselves and their assistant.

Emergency Telephones

Sockets for emergency telephones are available near OHE isolating switches, sub-sectioning and sectioning posts, grid stations and feeding posts.

Safety Warnings for Staff and Public

All electrical equipment should be treated as live at all times and potentially dangerous to human life, unless it is specifically made dead following special instructions.
Caution notices should be prominently displayed near vulnerable areas to warn staff and public to exercise caution.
No person should climb on the top of engines, tenders, or the roofs of carriages or wagons when positioned beneath overhead equipment, unless the overhead equipment is dead and earthed in accordance with special instructions.
All railway personnel, except those designated to work on or near electrical equipment, should stay away from it.

Electric Shock

Instructions on the treatment of individuals suffering from electric shock should be displayed in all inspection sheds, stabling depots, repair shops, stations, and trains.
These instructions should be written in English and the local language.
All staff should familiarize themselves with these procedures.
These instructions should be displayed in all supply control posts, overhead equipment maintenance depots, tower wagon sheds, loco sheds, and signaling cabins.
Respirational treatment should be administered immediately in case of electric shock.
The names and telephone numbers of the nearest railway and civil doctors and hospitals should also be displayed in all locations specified in the previous point.

Fire

If a fire breaks out on or adjacent to any electrical equipment, the affected portion should be immediately isolated from its electrical energy source.
The railway administration's pre-approved fire extinguishing arrangements should be used to extinguish the fire.
If a railway worker, not authorized to handle electrical equipment, notices a fire on or around it, they should act in accordance with Rule 6.10.
Arrangements for conveying instructions to workers should be communicated beforehand, and workers should be informed that orders regarding climbing structures should only be accepted from designated individuals.

Climbing Structures

Before instructing workers to climb a structure, the person in charge or the delegated individual should explain which sections of the overhead equipment are dead and which are live, as well as which parts of the structure are safe to work on.
The person in charge or the delegated individual should ensure that everyone understands these instructions clearly.
It is each person's responsibility to ensure that danger discs or lamps are correctly in place before work begins.
On structures spanning multiple tracks where work is being done near one or more sections of overhead equipment, before making the line(s) live after completion, the person in charge should ensure all personnel and materials adjacent to the line(s) are removed from the danger zone. If work is to continue on other parts of the structure, the danger discs or lamps should be shifted to indicate the new danger zone.
This rule needs to be communicated to individuals in charge of painting structures.

Excavation in Electrified Areas

Instructions outlined in SR 17.05.5 should be followed whenever excavation is undertaken in an electrified area.

Rail Replacement

The electrical department should be notified prior to replacing worn-out rails to allow for the removal of copper bonds and proper rebonding of the rail joints after the completion of work.
The track bonding Chargeman-in-charge should personally inspect the track to confirm the proper continuity of the rail return.

Overhead Equipment Repair or Alteration

Before commencing any repair or alteration to the overhead equipment, the Chargeman should arrange for power to be cut off from the equipment in question after consulting the TPC.
They should then verify that the line is dead using a testing procedure prescribed by the competent authority.

Signal Department and Station Master Responsibilities

Signal department Inspectors and Station Masters should inform staff under their supervision about these instructions and ensure they are understood correctly.

Induced Voltages in Signaling and Telecom Circuits

Induced voltages may occur in signaling and telecom circuits, particularly when track lengths are parallel.
Even when no induced voltage is present initially, the following precautions should be taken, as induced voltage can occur at any time due to sudden short circuits in the traction overhead equipment.
In circuits with earth connections, contact with which may normally be safe, if the circuit breaks, induced voltage may appear between the two resulting parts.
Whenever staff work on S&T circuits along with 25 KVAC electrified lines, these precautions must be taken.
Staff should wear rubber gloves and use tools with insulated handles, as a general rule.
When the work requires precision and rubber gloves cannot be used, special precautions should be taken by splitting the circuit into sections or grounding them. In some cases, both steps should be taken simultaneously.

Overhead Line Staff Patrols

Overhead line staff should inspect pantographs on passing electric rolling stock during their patrols.
If any defects are noticed, they should report to the TPC through the emergency telephone circuit, or if unavailable, any other telephone. They should provide the electric rolling stock number, the location of the defect, and the time the defect was identified.
The TPC should then report on the defective pantograph to the TLC, who will arrange for the electric rolling stock to be stopped as soon as possible for examination of the defective pantograph.

Overhead Equipment Breakdown Equipment Maintenance

The TFO/OHE is responsible for the proper maintenance of all breakdown equipment, wiring trains, tower wagons, breakdown lorries, etc., ensuring they are always in good working order.
They should ensure that these items have the full quantities of stores and spare parts according to the approved inventory.
All tools, tackles, straining, screw clamps, ropes, and ladders should be maintained in good condition and ready for use at all times.

Tripping of Circuit Breakers of Locomotives and Electrical Multiple Units at Neutral Sections

Unless otherwise allowed by special instructions, the Loco Pilot of the locomotive or electrical multiple unit should coast through the neutral section with the power switched off.
Relevant indication boards should be installed to guide the Loco Pilot when to switch power off and on.

Neutral Section Warning Boards

Warning boards should be fixed on the OHE masts behind neutral sections at distances of 500 meters and 250 meters, respectively.
Boards indicating the location to switch power off and on should be fixed on the OHE masts as well.
No Loco Pilot should pass the neutral section between the warning boards with power on.
The Loco Pilot must approach the neutral section at a speed of at least 30 KMPH to avoid stalling while negotiating it.
The Loco Pilot or Assistant Loco Pilot should call out the location of any fixed or temporary display boards in the section, similar to how they call out fixed signal aspects and engineering indicators.

Temporary Neutral Sections Warning Boards

If temporary neutral sections are required due to circumstances such as speed restrictions below 30 KMPH within a kilometer on either side of the neutral section, emergency feeding arrangements in case of sub-station failures, etc., warning boards should be placed behind the temporary neutral section at distances of 500 meters and 250 meters, respectively.
Boards indicating the location to lower and raise pantographs should also be installed.
These warning boards should only be used if the configuration will be in place for more than 24 hours.
All Loco Pilots should be informed about the locations to lower and raise pantographs through a Caution Order issued at the relevant station or notice station.
Loco Pilots should approach the temporary neutral section at a speed of at least 30 KMPH to avoid stalling.

Programmed Speed Restrictions at Neutral Sections

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Traction Foreman/Rolling Stock (TFO/RS)

Responsible for maintaining and inspecting electric rolling stock
Supervise staff working on electric rolling stock

Traction Loco Controller (TLC)

In charge of booking electric locomotives and allocating running staff
Meets the needs of traffic demands

Traffic Block

A track is blocked against the movement of all traffic over a certain section

Electrical Way and Works Inspection

Conducted regularly according to special instructions
Officials nominated for the purpose conduct the inspections
Railway servants employed on electrical way and works must adhere to General Rules

Duties of TFO/OHE and ATFO/OHE

PWIs duties related to electrical way and works devolve upon TFO/OHE and ATFO/OHE

Duties of Overhead Equipment Linesman

Gangmate duties related to overhead equipment devolve upon Linesman

Lowering Pantographs

When a fault in overhead equipment necessitates lowering pantographs, the traction official must communicate with the TPC
TPC informs the SCOR for issuing Caution Orders to Loco Pilots
Caution Orders specify the exact location where to lower and raise pantographs
Traction officials must arrange with ATFO/OHE to display indication boards marking the affected section

Access to Electrical Equipment Chambers

Keys are kept in a locked box to access live equipment
In case of emergency, authorised personnel can break the box's glass cover
A record of every key use is maintained
Broken glass cover is replaced immediately
The person replacing the glass obtains the signature of the authorised person

Key Management

Person working on live equipment retains the chamber or enclosure's keys
Keys are returned to the person in charge after locking the chamber or enclosure
Permit-to-work cards remain active until keys are returned

Switch Operation in Emergencies

The Station Master operates switches as per the TPC's instructions
In case of faults, the ATFO/OHE or an authorized person arranges with the TPC or handles necessary switching operations
TPC directs the switching operation
The person who carried out the switching locks the switch and informs the TCP
The keys are not returned until further orders from the TCP

Jumpered Neutral Section

The official who jumpered the neutral section issues a Caution Order to the Loco Pilot if there is a train stopped behind the neutral section
The Caution Order instructs the train to pass the neutral section with power on
The Caution Order specifies locations for lowering and raising the pantograph

Tower Wagon Movement

Tower wagons used for overhead equipment repairs must be moved quickly to breakdown locations
Tower wagon movement adheres to the rules governing train movement.
Only certified drivers or officials can operate a tower wagon
Competency certificates are issued after written, oral, and practical exams

Ladder Trolleys

Ladder trollies are considered lorries and must be accompanied by at least 4 men to lift them off the tracks
Not used for carrying electrical or heavy materials
Movement governed by rules and regulations
Supervised by a dedicated supervisor
Caution Orders and other necessary provisions are issued timely

Shut-down Procedure

48 hours prior notice is given to the TFO/OHE
The authorized person performs the shut-down following specific procedures
The authorised person issues a Permit-to-work to the supervisory official in charge
The line is tested for supply and earthed
The Permit-to-work is returned after the work is completed and all personnel are clear
Earthings are removed and the TPC is informed to restore power

Crow Nest or Stray Wire Removal

Can only be removed after power is shut off from the line
Insulated hooks are used
Contact with overhead wires or insulators is avoided
TPC directs the removal of crow nests or stray wires
Detailed records of all shutdowns are kept

Urgency Train Halt

The TPC informs the SCOR to urgently stop train movements over a section of line or a crossover
The TPC informs the SCOR about the breakdown

Tower Wagon Equipment

Tower wagons must carry various tools for maintenance and breakdown repairs
ATFO/OHE is responsible for ensuring the availability of tools and equipment
Monthly mechanical inspections are conducted on the tower wagon's bogie and running gear
The ATFO/OHE informs the TXR about the inspection date
Monthly checks are made on bogie, running gear, underframe, under gear fittings, and axle boxes
POH (Periodic Overhaul) is conducted on tower wagons
ATFO/OHE handles day-to-day diesel engine and driving gear maintenance

Tower Wagon Driver Responsibilities

Tower wagon drivers perform daily maintenance tasks
Specialized diesel engine and driving gear staff are available on each division for monthly and six-monthly maintenance
Divisions can be grouped together to share specialized staff

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Description

This quiz covers essential safety procedures related to overhead equipment, including repair, adjustment, breakdowns, and compliance with standard dimensions. Knowledge of requirements for authorized personnel and signal protocols is crucial for safe operations. Test your understanding of the regulations regarding overhead machinery and crane operations.