Safety rules handbook Flashcards
SHALL
Rules are mandatory and rules of others too
SHALL WHERE PRACTICABLE
In light of current knowledge and invention where possible it will be done
SHALL WHERE REASONABLY PRACTICABLE
A judgement is made taking into account time trouble and effort based on what a reasonable man would do
Main purpose of the safety rules
Protection of persons when working on or near the equipment
POLICY
Why we need to do what we do to be safe? legislation; H and SAW act, EAW regs, MHSAW regs NG meet and exceed requirements
PHILOSOPHY
What we are going to do to meet the policy! give safety from the system and use hierachy of controls; make available, establish safe conditions,authorise start of work, receive authority to start, cancel authority, restore system to normal.
PRINCIPLES
How we are going to do it? Isolation and earthing, approved procedures, formally appointed staff, applied across all interfaces
Definition: Charged
At a voltage when isolated, by induction due to capacitive effects
Definition: General safety
Provision and maintenance of safe access to and from a place of work, safe place of work, safe working environment, safe systems of work and correct use of PPE.
Definition: Isolated
Disconnected from associated equipment by the operation of an isolating device to the isolating position or by adequate physical separation, which shall ensure the isolation gap cannot fail.
Definition: SAP
A CP appointed by an appropriate officer of the company to carry out duties specified in writing, including preparation, issue, transfer and cancellation of safety documents.
Definition: POI
The point at which equipment has been isolated and where practicable, immobilised and locked and a caution notice attached at all times.
Definition: Safety from the system
That condition which safeguards persons working on or near to equipment from the dangers which are inherent in a system.
Definition: System
Items of equipment which are used separately or in combination for the generation, transmission and distribution of electricity.
G1
General safety - GS GS established & maintained, established before work starts, Roles for which are in AMBP 310, PIC shall ensure working party maintain GS and no other work areas are affected.
G2
Safety rules, Instructions and procedures
SR and supporting documents are mandatory and all other authorities are also mandatory e.g. DNO steel works, railways, highways agency.
G3
Special instructions
If the safety rules cannot or should not be applied work must be done under a G3 procedure.
e.g. record of abnormal clearance for lost document, keys, flags and wristlet’s
G4
Objections on safety grounds
any objections on safety grounds dealt with by a G4 procedure.
Rule 1
Application of the rules
The rules apply when working on or near to items of equipment which are part of a system.
Equipment added and removed from the system using NSI 33.
Rule 2
Approach to HV conductors and insulators
Nothing can approach within safety distance
When POI established conductors are still charged only voltage measuring devices and earthing devices can approach.
When POI’s and PE applied approach is allowed under an appropriate safety document 1M must be maintained during the application of portable earths.
R3
Safety precautions for work on or near to HV equipment
SAP assess means of achieving SFTS, if he can limit the area he will give instructions in writing, where necessary an LAC will be issued.
Where limiting the area is not enough an outage is required.
CPO-SSC-CPS-ESTABLISH SAFETY PRECAUTIONS WITH AP conditions in place for OHL PFW to be taken out.
Where drain earths are needed for charged conductors, they shall be issued with an appropriate safety document and earthing schedule.
R4
Safety precautions for work on or near LV equipment
R5
Safety precautions for work on or near Mechanical equipment
R6
Operation of equipment
No undue delay or prearranged time scales
R7
Demarcation of work areas
Work area clearly defined and protected physically where necessary.
Minimum 2 red pennants per phase.
R8
Identification of equipment
Work only permitted on equipment that is readily identifiable.
A temporary means can be attached by the SAP and remain in place for the duration.
P1
General
All personnel to be trained in their roles and responsibilities.
Formal appointments laid down in NSI 30.
Cancelled safety documents shall be retained for 3 years for audit including WPR, ES and RAMS.
P2
Application
A safety document shall be issued to a CP and he will personnally retain it in safe custody.
Max number CP can hold is 3 at any one time.
P3
Safety Precautions
Applied/removed for SFTS by an AP.
PPE’s must be applied by an SAP only.
All under CPS instruction and recorded.
Safety keys shall be locked in a key safe.
Key safe keys locked in the OPS cabinet.
SAP where possible shall lock the control lock prior to consent of safety document.
SAP preps document after CPS confirms safety precautions.
P4
Prep of safety documents.
SAP duty to prep and enter all correct relevant details.
Shall be prepped before contacting the CPS.
IGDD shall be recorded next to appropriate equipment and contact details entered in further precautions for CP and SAP.
If not to be issued straight away must be put in a card safe, TEE card filled out in with “ in safe custody” on.
P5
Issue of safety document.
SAP to complete with the CP making sure he;
Reads and understands the SD.
Can ID the equipment (Tech data sheets/ops diagrams).
Conversant with all further precautions (IGDD etc).
SAP to issue an earthing schedule.
For work on down leads a physical walk to witness safety precautions with the CP shall be carried out.
P6
Receipt of a safety document.
CP shall read and understand document & further precautions.
CP signs issue and receipt to formally receive it.
CP checks tech data sheet and ops diagrams to confirm ID.
P7
Additional work subsequent to the issue of a safety document.
SAP carries out a risk assessment & ensures a safe system of work is developed.
Minor works can be authorised providing POI and PE doesn’t change. (Single insulator)
When drain earths required an additional ES shall be issued and recorded on the safety document.
CP made fully aware of any changes to RAMS also.
P8
Transfer of safety documents.
CP surrenders completing part 1 of transfer section on SD.
If not to be transferred immediately SAP puts in a card safe.
SAP to reissue to same standard as original.
Wherever possible transfer shall be done face to face with the new CP.
If isolation is IGDD the CPS shall be informed of the new telephone number.
P9
Clearance of safety documents.
CP signs clearance section ensuring all WP withdrawn and warned.
All items issued are returned and all tools and equipment removed.
Any exceptions are recorded if not CP to enter NIL.
If not cancelled immediately stored in a card safe by SAP.
P10
Cancellation of safety documents.
SAP checks for any exceptions.
Contacts CPS gives him the ID number and reads section 1.
SAP confirms equipment is fit for service or there are exceptions.
Remove TEE card/s.
Checks all items have been given back (earths/wristlets/flags).
P11
Return to operational service.
CPO transfers control back to the CPO. (SSC)
CPO returns back to service.(cancels SSC)
P12
Categories of authorisation.
P, CP, AP, SAP, CPS, CPO all details in NSI 30 “Appointment of persons” for the process and maintenance of them.
P13
Safe custody of safety documents and associated items.
Documents shall be secured by an SAP when; prepped but not issued, cleared but not cancelled and when in transfer.
SD shall be kept in safe custody by the recipient. (PIC)
Drain earths shall be locked away.(container/bag)
P14
Multiple safety documents.
SD have same number just have a separate alpha character.
SAP agrees wording in section 1and 2 with CPS.(identical on all multiple documents)
SAP confirms its an initial document of a multiple.
All earths issued with master document others state zero issued.(controlled by further precautions).
ES shall state “a daily check shall be made that drain earths are still in place”.
Definition: Equipment
Electrical and mechanical operational assets to which the safety rules apply.
what do you enter in section 1 location on an LAC?
The Route and system voltage.
Some Routes have different voltages on them, which voltage do you enter?
The higher voltage only.
You can list more than one Route in section 1 provided that……
The voltages are the same, the work done is common and all equipment is clearly identified.
How many routes can be managed on one LAC?
6 maximum
What is the maximum time an LAC can be live before needing a review?
3 months
On a PFW what detail do you enter in section 1 location?
The circuit name and voltage of the isolated section of line.
What must the circuit, circuit ID and tower numbers match up with?
OHL technical data sheet (database)
What things could you record in further precautions?
DAR on adjacent circuit, Earthing schedule reference, control of DrESS schemes, Multiple documents, and Cellular.
