DOC

Draft Electrical Safety Guidelines - Charles Sturt University (CSU

By Wendy Olson,2014-06-29 09:15
6 views 0
Draft Electrical Safety Guidelines - Charles Sturt University (CSU ...

    Draft Version: 0.10 Approved: 12 August 2005For Approval by Council

    Administered: Next Review: Division of Human Resources

    ELECTRICAL SAFETY GUIDELINES

    Referenced Documents

     OHS Regulation (2001) Clause 64 and 65

    AS 3760: 2003 In-service safety inspection and testing of electrical equipment

    AS 2243.7: Safety in laboratories, Part 7, Electrical aspects

     AS 3012: 1995 Electrical installations Construction and demolition sites

     AS 4249: 1994 Electrical safety practices Film, video and television sites

     WorkCover COP Electrical practices for construction work

     Draft OHS Amendment (Electrical Equipment) Regulation 2004

     Division of Facility Management’s ‘Out of Commission Policy

    Contents

    1. Scope

    2. Definitions

    2.1 Electrical work

    2.2 Electrical installation

    2.3 Electrical equipment

    a) residual current device

    b) hand-held / portable

    c) field work / out door / wet use

    d) movable

    e) fixed / stationary

    f) experimental unique

    2.4 Electrical Low Risk Area

    2.5 Approved person

    2.6 Cost Centre Unit

    3. Responsibility for Electrical Work

    3.1 Responsibilities of Facilities Management

    a) Electrical installation

    b) Switchboards

    c) Contract cleaners

    3.2 Responsibilities of the Cost Centre Unit

    a) Electrical equipments

    b) Responsibility to inform users

    c) Privately-owned electrical equipments

    d) Privately-owned electrical equipments used in sign-posted locations in

    University Library

    3.3 Responsibilities of Approved Persons

    3.4 Responsibilities of Users of Electrical Equipments in the Cost Centre Unit

    4. Notification and Labelling of Special Electrical Installations

    5. Classification, Testing and Labelling of Electrical Equipments

    5.1 Classification

    5.2 Inspection, Testing and Labelling

    5.3 Test Frequency

    5.4 Equipments Exempt from Testing

    6. Electrical Safety Audits

    7. Rescue and Resuscitation Training for Approved Persons

    8. List of Appendixes:

    Appendix A General Safety Hints for Users of Electricity

    Appendix B General Testing and Inspection Intervals for Electrical Equipments

    Appendix C Office Equipment in Electrical Low Risk Areas exempt from

    Inspection, Testing and Tagging

    Appendix D Office Equipment in Electrical Low Risk Areas requiring Inspection,

    Testing and Tagging

    Appendix E Risk Assessments for Low Risk Electrical Areas

    Appendix F Competent Persons for Risk Assessments & Inspection, Testing and

    Tagging

    Appendix G Recommended Isolation Practice and Danger Tagging Procedure

    Appendix H Recommended Use of Residual Current Devices (RCDs)

    Appendix I Notification of Electrical Work Procedures

    Appendix J Bibliography

1. Scope

    This guideline summarises the policies and the standard operating procedures that have been

    developed by Charles Sturt University to foster the safe and reliable supply and use of electricity

    within the University.

The technical detail expected to be known to qualified electricians and electronics technicians such

    as the restrictions and precautions to be applied to working on live equipment have not been

    repeated in this code. General safety hints for users of electricity are given in Appendix A.

It is a requirement that this guideline shall be followed by management and staff throughout the

    University.

2. Definitions

    2.1 Electrical Work.

    Electrical work includes all work done,

    a) on the electrical installation,

    b) on electrical equipment. The term would include both electrical and electronic work.

    2.2 Electrical Installation. The electrical installation is the electricity supply to a building, and includes the main switchboard,

    distribution boards, and all fixed wiring to isolation switches or general purpose outlets.

    2.3 Electrical Equipment. Electrical equipment is an electricity consuming device or apparatus (including the cable) that is connected to or capable of being connected to the electrical installation.

    Electrical equipment can be coded into one of the following categories,

    a) residual current device, RCD: a switching device intended to isolate the circuit when the

    current imbalance attains the rated operating leakage current value of the device. These devices

    may be either portable with a 'push button test' for use by the user or fixed.

    b) hand-held / portable: equipment which is hand-held while in operation or can be moved

    easily while connected to the supply. Examples: floor polisher, vacuum cleaner, power tools

    (portable drill, grinder, soldering iron), extension lead, non-fixed electric portable outlet device

    (EPOD), jug, toaster, desk lamp, laboratory stirrer/heater, heat gun, heating mantle,...

    c) field work / out door / wet use: Examples of wet use: water bath, ultrasonic bath, ...

    d) movable: equipment that can be moved readily from one place to another by unplugging

    from a general purpose outlet, but that is not moved during operation. Examples: cathode ray

    oscilloscope, electronic balance, personal computer, printer, …

    e) fixed / stationary: equipment which in normal use is fastened to a support of otherwise

    secured in a specific position or is of such size or function as to be difficult or unlikely to be

    moved from one place to another. Examples: large workshop machinery (lathe, band saw, etc.),

    oven, refrigerator, ...

    f) experimental unique: equipment constructed by or for the Cost Centre Unit that does not fit

    into any of the other categories. Examples: immersion heater elements, furnaces, soil digestion

    blocks, distillation control systems, UV light sources, heater controllers, ....

    2.4 Electrical Low Risk Area.

    An electrical low risk area is a working environment that is clean, well organised and free of

    environmental factors that could effect the equipment or flexible supply lead. For example, an

    office, reception area, foyer, call centre and computer classrooms, etc.

2.5 Approved Person.

    An approved person is a person approved to undertake explicit electrical work. The approval is given by Cost Centre Unit management in employing a person or in requesting a person to

    undertake a specific task. An approved person for the purposes of these guidelines shall be,

    a) an A-grade licensed electrician approved to work on the electrical installation and electrical

    equipment,

    b) an electronics technician approved to work on electrical equipment connected to or capable

    of being connected to the electrical installation,

    c) a tradesperson holding a restricted electrical licence (air conditioning mechanic, plumber,

    mechanical fitter, electrical fitter) approved to work on restricted electrical equipment and their

    connection to the electrical installation according to the specific conditions of their licence,

    d) such other competent person approved to work on electrical equipment by way of

    demonstration that their knowledge and experience is sufficient for them to do so safely. In

    assessing the suitability of a person to be so approved, Cost Centre Unit management shall use

    the guidelines given in Appendix C.

    e) such other competent person approved to undertake in-service testing of electrical equipment

    previously judged to comply with the relevant Australian Standards and supplied with a 2 or 3

    pin plug for connection to a general purpose outlet.

    An approved person must successfully complete a training course covering

    ? electrical safety principles for equipments as per AS 3100,

    ? electrical safety in-service test procedures as per AS 3760,

    ? requirements of the CSU Policy for Electrical Safety.

A refresher course on the above must be successfully completed every two years.

    The name of each approved person shall be reported as soon as practicable to the Cost Centre Unit

    OHS Committee.

    It is the responsibility of Cost Centre Unit management to ensure that persons they approve have

    appropriate qualifications and experience for the tasks they undertake.

2.5 Cost Centre Unit.

    Cost Centre Unit refers to a School, Faculty, Division, Department, Cost Centre or Unit with a

    responsibility for an activity of the University

3. Responsibility for Electrical Work

    The Division of Facilities Management (DFM) is responsible for the electrical installation in all buildings, including the safety of such installation.

    The Cost Centre Unit, as occupier of the building, is responsible for the safety of all electrical equipment in their building space.

    All electrical work, whether undertaken by DFM or by the Cost Centre Unit, shall be in compliance with the rules and codes of the Local Supply Authority and Standards Australia. Recommended

    isolation practice and tagging procedures are covered in CSU’s Out of Commission Policy.

3.1 Responsibilities of the Division of Facilities Management

    a) Electrical installation

    DFM is responsible for the electrical installation in all buildings, including the provision,

    maintenance, repair, alterations and additions to the electrical installation, the safety of such

    installation, and its compliance with the rules and codes of the Local Supply Authority and

    Standards Australia.

    It is the responsibility of DFM to ensure that their approved persons have appropriate

    qualifications, licences and experience for the nominated tasks.

    All changes to the electrical installation must be notified using the Local Supply Authority's

    Notification of Electrical Work form as described in Appendix H.

    b) Switchboards

    Where practicable, main switchboards shall be

    ? locked, with DFM and Cost Centre Unit management only to have the key,

    ? local boards in laboratories, etc, shall be fitted with an emergency off button on the

    outside of the local board.

    c) Contract cleaners

    DFM should require that contract cleaners have their equipment electrically tested and

    tagged according to AS 3760 before being accepted to work at the CSU.

3.2 Responsibilities of the Cost Centre Unit

a) Electrical equipment

    The Cost Centre Unit is responsible for the electrical aspects of all electrical equipment, including the acceptance testing, issue, maintenance, repairs and modifications of such equipments, the safety

    of such equipments, and its compliance with the rules and codes of the Local Supply Authority and

    Standards Australia.

    Connection of electrical equipment to the electrical installation of the building shall be by an approved socket outlet or isolation switch. A residual current device shall be used on a circuit supplying a wet use equipment, if practicable. Electric portable outlet devices (EPODs), if an

    integral part of an electrical equipment or rack, shall be fixed by the use of secure fittings in such a

way that the EPOD is mounted with its face in the vertical plane in a location that is not susceptible

    to mechanical or water damage.

    The Cost Centre Unit will do all electrical work on its electrical equipment, by means of,

    a) employed approved persons, and/or

    b) arrangements with DFM, and/or

    c) contracted approved persons.

    It is the responsibility of Cost Centre Unit management to ensure that their approved persons have appropriate qualifications and experience for the nominated tasks.

    b) Responsibility to inform users

    Cost Centre Unit management should ensure that users are made aware of their

    responsibilities.

    c) Privately-owned electrical equipment

    The use of privately-owned electrical equipments in Cost Centre Units is to be

    discouraged. In general, the use of a private equipment must be approved by the Cost

    Centre Unit and such equipment tested and tagged by the Cost Centre Unit in

    accordance with this Policy.

    d) Privately-owned electrical equipment used in signaged locations in University Library The University Library has provided signage for power outlets, protected by Residual Current

    Devices, for the use of the general public. Privately-owned electrical equipment may be used at

    these outlets without being tested and tagged by the Cost Centre Unit, provided that it complies with the appropriate Australian/International electrical manufacturing standard and that the

    equipment is maintained and used by the owner in a safe condition. The signage for such power

    outlets in the University Library shall read as follows:

    The general purpose power outlets at this location are provided for students and others who may

    wish to use privately-owned personal computers. The outlets shall not be used for any other

    purpose. Please check that your electrical equipment is safe to use, complies with Australian

    Standards, and is suitable for the local supply voltage and frequency of 240 V AC and 50 Hz. Use

    only a standard Australian Pattern 3-pin or where acceptable 2-pin plug. If you experience any

    problems with the power outlets please notify library staff."

3.3 Responsibilities of Approved Persons

    It is the responsibility of the approved person to refuse to undertake electrical work outside their area of expertise. If the task is outside their area of practical experience, it is the responsibility of

    the approved person to seek guidance before undertaking the task.

    The approved person shall undertake work in such a manner to ensure that personnel are exposed to

    the least possible degree of danger.

    It is the responsibility of the approved person to inform management of electrical hazards found in

    the Cost Centre Unit

    .

    3.4 Responsibilities of Users of Electrical Equipment in the Cost Centre Unit Users must not interfere with the marker label on electrical equipment or with the tagging procedure used as a safety control by approved persons. Such interference constitutes a very serious

    offence which will lead to disciplinary action.

    Users of electrical equipment in the Cost Centre Unit are responsible to ensure that they are set up

    correctly and used safely. Users are not permitted to repair, modify, or interfere with electrical equipment in any way.

    Users are responsible to notify their supervisor or an approved person when the due for inspection/retest date shown on the marker label of an electrical equipment is approaching and not to use equipment if the due for inspection/retest date has passed.

    Users should be aware that a marker label attached to an electrical equipment indicates that the equipment conformed to the appropriate standards at the date of testing. If there is any doubt as to

    the current validity of a marker label on an electrical equipment the user should notify their supervisor or an approved person immediately.

    If a user becomes aware that the equipment or associated wiring may be in a dangerous condition,

    the equipment should be switched off and unplugged (if possible) and the Cost Centre Unit

    management notified immediately. A notice should be placed on the equipment stating, for example:

    EQUIPMENT DANGEROUS

    do not use

    j. bloggs Chem Lab Ext34321

    10 March 2005

Electrical portable outlet devices (EPODs) are to be used only if they have overload protection.

    Home-made electrical portable outlet devices are illegal with Local Supply Authorities throughout

    Australia and shall not to be used in the University.

    Double adaptors are not approved for use within CSU and should be removed and replaced with

    electrical portable outlet devices (EPODs) with overload protection fitted.

4. Notification and Labelling of Special Electrical Installations

    Electrical installations or parts of installations requiring special provisions due to high voltage or

    the potential presence of an explosive atmosphere shall have,

    a) the details of the special provisions of the installation recorded by DFM,

    b) the installation and the extent of the special provisions clearly labelled at site.

    Any addition or alteration to the special electrical installation shall be carried out in compliance with the original requirements, and suitably labelled and recorded.

    If no longer required, the whole of the special electrical installation shall be converted to normal standards, the labelling removed and the change noted in the records.

    5. Classification, Testing, and Labelling of Electrical Equipment The Cost Centre Unit shall examine, classify, test, and label all new, repaired, or modified

    electrical equipment before issue or installation.

    5.1 Classification

    The classification system for electrical equipment used at the University is given in Section 2.3.

    5.2 Inspection, Testing and Labelling

    In-service inspection, testing and labelling of electrical equipments previously judged to comply with the relevant Australian Standards and supplied with a 2 or 3 pin plug for connection to a

    general purpose outlet shall be carried out by a person approved under any of the categories given

    in Section 2.4 a - e of this policy. Inspection, testing and labelling of electrical equipment not

    previously judged to comply with the relevant Australian Standards shall be undertaken by a person

    approved under categories given in Section 2.4 a - b only.

    Protocols for testing power mains connections to electrical equipment are given in AS 3760. Where equipment delivers electrical output other than direct mains connections, the output

    generator and connections shall be inspected or tested to ensure compliance with the relevant

    Australian Standard, for example, AS 2243.7 for electrophoresis apparatus, AS 1188 for RF

generators. Such work shall be undertaken by a person approved under categories given in Section

    2.4 a - b only.

    The marker label shall show the date by which the equipment is further due for inspection / retest,

    or the phrase "on repair" or "on issue". The marker label may be either a self-adhesive label for

    fixing directly onto the equipment or, if there is no reliable place for attachment, the marker label

    may be of a design for connection to the flex. Both recommended marker labels for use within the

    University are held at Central Store. Ordering details from Central Store are as follows,

    Description: Marker label, self-adhesive, control "Due for Inspection"

    Ordering details: #WTMP.18B

    Description: Marker label, flex attachment

    Ordering details: Tag, equipment cord electrical

    5.3 Test frequency

    The Cost Centre Unit shall test electrical equipment (using the methods given in AS 3760) before

    issue or installation and shall retest according to the following testing frequency schedule,

    a) residual current device: performance test every 12 months.

    b) hand-held / portable: tested every 12 months, except were Area determines a more frequent

    test period is necessary for the local conditions. All workshop hand tools should be double

    insulated.

    c) field work / out door / wet use: tested before each issue. If issue is infrequent, shall be tested

    at least every 12 months.

    d) movable: tested on receipt and then no further testing unless equipment is repaired or

    modified.

    e) fixed / stationary: tested on receipt and then no further testing unless equipment is moved,

    repaired or modified.

    f) experimental unique: testing regime and frequency to be determined by Cost Centre Unit

    for each case based on a risk assessment.

    5.4 Equipments exempt from testing All electronic office equipment judged to comply with relevant Australian and other standards such

    as computers, printers, fax machines, scanners, photocopiers etc, used in electrical low risk areas or

    locations as verified by a risk assessment, shall be exempt from testing or tagging. These exempted

    devices shall be visually inspected as part of the regular OHS workplace inspection program.

    All equipment exempted from testing and tagging under the above clause, shall be inspected, tested

    and tagged from the date of return to service after repair for an electrical problem or fault.

    Electronic office equipment operated in hostile environments or areas judged to be other then ‘low

    risk’ shall require to be inspected, tested and tagged in accordance with the program at Appendix B.

6. Electrical Safety Inspections and Audits

    The responsibility for electrical safety in a Unit rests with Cost Centre Unit management.

    Workplace Inspections for electrical safety procedures and practices shall be undertaken in

    accordance with CSU’s Workplace Inspection Policy by the Cost Centre Unit. The campus

    Occupational Health & Safety Committee will also conduct regular inspections as part of their on-

    going audit activities.

    Regular audits of each Cost Centre Unit’s electrical safety will be undertaken by Human Resources (Environment, Health & Safety) staff.

    Random spot audits of the electrical installation shall be undertaken by DFM in all Cost Centre Units.

    Any sub-standard electrical work shall be upgraded to comply with the rules and codes of the Local

    Supply Authority and Standards Australia.

    7. Rescue and Resuscitation Training for Approved Persons All approved persons shall be trained in the methods of rescue and resuscitation of persons

    suffering electric shock. Re-training of approved persons in these skills shall be done every two years.

    APPENDIX A

    General Safety Hints for Users of Electricity

    Electricity can cause damage, injury and death; electricity should be treated with care and respect.

    Electrical equipment should be properly installed, operated and maintained. Otherwise, electric

    shock can be produced by the passage of current through the person. Fires or explosions can also be

    caused by the heat generated from overloading or by inadequate ventilation of electrical equipment.

    Safety routines that help prevent electrical accidents include the following.

Safety Practices for Users.

    1. Report any apparent electrical defects to an approved person in the Cost Centre Unit.

    2. Use the correct equipment for the specific task.

    3. Ensure that electrical equipment is dry and clean.

    4. Do not use equipment where the due for inspection/retest date has passed.

    5. Do not use general purpose electrical equipment when wet or in wet areas without suitable

    residual current device protection. Always push-button test the residual current device

    before each use.

    6. Double adaptors should not be used.

    7. Electrical portable outlet devices (EPODs) are to be used only if they have overload

    protection. Home-made electrical portable outlet devices are illegal with Local Supply

    Authorities throughout Australia and shall not be used. Cascading of EPODS is forbidden.

    8. Keep loose cables off the floor.

    9. Do not withdraw a plug from a socket by pulling the cable.

    Electric Shock & Electrocution.

    10. Before touching a person suspected of suffering from an electric shock or being electrocuted,

    switch off the electricity supply (i.e. by switching off and removing plug from socket).

    11. Commence cardiopulmonary resuscitation immediately if heart and breathing has stopped

    following an electric shock.

    Electrical Fires.

    12. Only prescribed extinguishers should be used on electrical fires. Where possible, the

    electricity should be switched off before fighting the fire.

    APPENDIX B

    Testing and Inspection Intervals for Electrical Equipments

    (for which a risk assessment process has NOT or CANNOT be used)

    Interval between inspection and tests

    Additional testing for Type of environment in Class of equipment Cord portable RCDs which equipment extension Class I Class II Push-button is used sets and Test for (protectively (double test EPODs operation earthed) insulated) (by user) 1 Construction and 3 months 3 months Immediately 3 months 3 months

    demolition sites after

    connection to

    a socket

    outlet, and

    every day in

    use

    2 Factories, 6 months 12 months Daily, or 12 months 6 months

    workshops and before every

    places of work of use,

    manufacturing, whichever is

    repair, assembly, the longer maintenance or

    fabrication

    3 Other commercial 12 months 12 months 3 months, or 2 years 12 months

    environments with before every

    no special use,

    protection, eg whichever is

    laboratories, tea the longer rooms, office

    kitchens, and health

    care establishments

    4 Office environment 5 years 5 years 3 months 2 years 5 years

    where equipment is

    not subject to

    constant flexing of

    the supply cord

    5 Hire or loan Before each Before each Before each Before each Before each equipment hire or loan hire or loan hire or loan hire or loan hire or loan

Note: The inspection periods in the above table may be used as the basis for establishing an inspection

    period for a specific electrical equipment risk assessment. Any estimated inspection period will require

    methodologies for measuring the effectiveness of the selected period, which then may be increased or

    decreased depending on the measured experience.

Report this document

For any questions or suggestions please email
cust-service@docsford.com