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Transcript
ELECTRICAL O&M MANUAL
*PROJECT*
GTI Plastering|Electrical O&M Manual
1
1
Contents
2
Document Status & History ....................................................................................................................... 3
3
Introduction ............................................................................................................................................... 4
3.1
Manual Users ............................................................................................................................................. 4
3.2
Scope of Works .......................................................................................................................................... 5
3.3
Emergency Information ............................................................................................................................. 5
3.4
Users Own Emergency Contacts ................................................................................................................ 6
4
Health & Safety .......................................................................................................................................... 7
4.1
General....................................................................................................................................................... 7
4.2
Legislation .................................................................................................................................................. 9
5
General Description of The Project .......................................................................................................... 12
5.1
Electrical Scope of Works ......................................................................................................................... 12
5.2
Project Design Criteria ............................................................................................................................. 13
5.3
LV Distribution ......................................................................................................................................... 14
1. 5.3.1 SYSTEM OVERVIEW ......................................................................................................................... 14
5.4
System Description .................................................................................................................................. 14
5.5
Control ..................................................................................................................................................... 16
5.6
Equipment................................................................................................................................................ 16
2.
3.
4.
5.
6.
7.
8.
9.
6
5.6.1 Lv Switchboards ............................................................................................................................... 16
5.6.2 Busbars ............................................................................................................................................ 16
5.6.3 Transformer ..................................................................................................................................... 17
5.6.4 Air Circuit Breakers (ACB'S) ............................................................................................................. 17
5.6.5 Multifunction Power Meters ........................................................................................................... 17
5.6.6 Surge Protection .............................................................................................................................. 18
5.6.7 Earth Fault Protection & Intertrip Relay .......................................................................................... 18
5.6.8 Tripping Batteries ............................................................................................................................ 18
OPERATING PROCEDURES ....................................................................................................................... 19
6.1
Introduction ............................................................................................................................................. 19
6.2
Safety Procedures .................................................................................................................................... 19
6.3
Permits to Work ....................................................................................................................................... 20
6.4
Emergency Procedures ............................................................................................................................ 20
6.5
Manufacturers Recommendations .......................................................................................................... 20
6.6
LV Switchboards ....................................................................................................................................... 21
10. 6.6.1 Start Up Procedures ........................................................................................................................ 21
11. 6.6.2 Normal Operation............................................................................................................................ 22
7
Maintenance Procedures ......................................................................................................................... 23
7.1
Introduction ............................................................................................................................................. 23
GTI Plastering|Electrical O&M Manual
2
7.2
Maintenance Matrix ................................................................................................................................ 24
7.3
Specialist Maintenance ............................................................................................................................ 25
7.4
Monitoring Of Electrical Services ............................................................................................................. 25
7.5
Periodic Testing & Inspection .................................................................................................................. 25
8
Equipment & Suppliers Schedules ........................................................................................................... 27
8.1
Item 1 ....................................................................................................................................................... 27
8.2
Item 2 ....................................................................................................................................................... 29
8.3
Asset Register .......................................................................................................................................... 31
9
Literature ................................................................................................................................................. 32
10
Commissioning Data & Certification ........................................................................................................ 33
11
Drawings .................................................................................................................................................. 34
2
Date
Document Status & History
Section/clause
Description
Author
GTI Plastering|Electrical O&M Manual
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3
Introduction
This manual must be read in conjunction with other related documentation, which forms part of the overall Health
and Safety File for the premises contractor under the Construction (Design and Management) Regulations 2015
(CDM Regulations).
The Health and Safety File is a set of record documentation, (typically sets of manuals and drawings), intended for
the client/end user focused primarily on health and safety when dealing with maintenance, repair or construction
works carried out to the premises.
The file should be made available for any persons who need to work on or operate any building related tasks.
Any future works carried out to the building or its services should be documented and recorded in the health and
safety file.
To obtain the most benefit from this manual, it must be read in conjunction with all related documents located in
the other related Sections of this manual as well as Health and Safety File.
In addition to the documentation directly related to the systems covered by this manual, other inter-related
documentation may need to be consulted to obtain a more comprehensive understanding of not only the service or
plant in question but also it’s possible effect on other services and areas. These documents will be included within
the suite of documents forming the Health and Safety File and include building structure and fabric information and
electrical services.
It is essential that all aspects of Health and Safety, relating to the task, are understood prior to carrying out
maintenance works.
The law imposes a responsibility on the employer to ensure safety at work for all employees and much of the law
regarding safety at work can be found in the Health & Safety At Work Act 1974.
3.1 Manual Users
This Manual has been prepared to provide guidance and recommendations to assist the personnel detailed below. It
is assumed that the users of this documentation will fall into one of the categories listed below. It is further assumed
that the correct instruction and training has been provided by the Client or appointed representative to the users of
this document.

Users of the building - trained designated personnel who can operate appropriate end user controls e.g.
controls, lifts, system overrides. Additionally they can contact appropriate personnel in the event of an
emergency. It is not expected that these personnel will have access to controls that require passcodes to access
control set points etc.

Managers of the building and services - technically qualified senior personnel who have an understanding of the
building construction and its relation to components and systems installed. It is assumed managers know how
to operate plant and systems and deal with emergency and other out of control situations. Personnel will
usually have full access enabling them to alter engineering settings.

Employees, (both directly employed staff and contractors), who carry out maintenance, repair or new works
within the building. Usually qualified trades persons with in depth knowledge of construction. They will usually
be working under the guidance of a manager.
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3.2 Scope of Works
The following elements and installations are covered by the content of this Building O&M Manual.
Package
Scope of Installation
3.3 Emergency Information
Gas
Electricity
TRANSCO
EDF ENERGY
24-HOUR EMERGENCY
24-HOUR EMERGENCY
0800 111 999
LONDON 0800 028 0247
www.transco.co.uk
EAST OF ENGLAND 0800 783 8838
SOUTH EAST OF ENGLAND 0800 783 8866
www.edfenergy.com
Water
ESSEX AND SUFFOLK WATER
24-HOUR EMERGENCY
0800 526337
www.eswater.co.uk
GTI Plastering|Electrical O&M Manual
5
3.4 Users Own Emergency Contacts
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6
4
Health & Safety
4.1 General
There are provisions in connection with Health, Safety and Welfare, which are legal requirements. In addition, there
are many official recommendations. For full details, reference should be made to the appropriate official legislation.
The following paragraphs briefly refer to the more common requirements.
Statement
Action / Notes
1.
It is the duty of every employer to:• Ensure, in so far as is practical, that the health, safety and welfare at work of all his employees
and all other persons who use his premises or are affected by his undertaking.
• Provide the information relevant to above.
2.
The equipment and materials referred to in these instructions are safe and without risk to health
when used and maintained in accordance with the instructions given in this manual and with the
plant manufacture instructions.
3
is the duty of every employee whilst at work to:
• Take reasonable care for the health and safety of himself and all other people who are affected
by his actions or omissions.
• Co-operate with his employer or any other person in so far as it complies with the provision of
the various acts.
4.
Anyone in control of industrial or commercial premises must prevent or render inoffensive any
actual or potentially harmful emissions into the atmosphere.
5.
Access to plantrooms and electrical control equipment must be limited to authorised personnel
who are members of the engineering staff.
6.
All places of work must be kept as clean as possible (consistent with their use). Dirt and or refuse
must not be allowed to build up. Plantrooms must be kept clean and the normal practice of storing
items therein must not be permitted.
7.
Work must never be carried out under conditions where there is any risk of danger if it is
reasonably practical to eliminate that risk.
8.
Safe working conditions must be provided, to give adequate protection and also safe access and
egress where necessary. Proper scaffolds, guardrails, toe boards, ladders etc., must be provided
and used.
9
Where appropriate to the work, protective equipment (i.e., goggles, screens, respirators,
protective clothing, safety helmets, safety belts) must be worn and or used
GTI Plastering|Electrical O&M Manual
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Statement
Action / Notes
10
Never lift, move or carry loads which are liable to cause personal injury.
11
Never work on moving parts of machinery. Exercise care if working on the stationary parts of
machinery which is in operation. Before doing so, ensure that the moving parts are adequately
protected by suitable guards.
12
Adequate lighting whether permanent or temporary must be provided at all times.
13
Adequate ventilation must be provided. Special precautions must be taken in atmospheres where
there is steam, smoke, asbestos, or other unhealthy or dangerous contaminants, or in a confined
space.
14
Where maintenance work is in progress a "DANGER" notice must always be attached to any "live"
apparatus, calling attention to the danger of approach. A "CAUTION" notice must always be
attached to plant or its associated control equipment, warning of possible damage to equipment,
which may be occasioned by interference.
15
Before working on any electrical equipment, a "permit to Work" form, signed by a responsible
person, must be obtained. The equipment must be disconnected from the supply by operating the
switch or starter, and the isolator (if installed). As a further precaution, remove the protective
devices and lock off if possible. Any work requiring technical knowledge or experience must be
undertaken only by competent persons.
16
Hand, or other small, power tools, should be suitable for, and operated from a 110 Volt electricity
supply, using a portable transformer.
17
Fire precautions must be observed. "No Smoking" notices must be displayed where necessary and
must be rigidly obeyed.
18
The means of escape from the building (as specified on the certificate issued by the Fire Authority)
must be maintained and kept from obstruction at all times.
19
Fire fighting equipment must be provided, maintained and kept readily available at all times.
20
First Aid boxes or cupboards of the prescribed standard and containing only First Aid requisites,
must be provided in accessible positions, and kept clean and in good order. The minimum quantity
of dressings etc., has been laid down according to the number of persons employed. Where this is
required by the Regulations, a responsible and readily available person, trained in First Aid
treatment, must be named and placed in charge of the equipment during working hours.
22
Fire alarms must be regularly tested and maintained in full functional order. Access to alarm and
'panic' buttons must be totally uninhibited.
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4.2 Legislation
Acts of Parliament & Regulations Applicable to Construction Activities.
Builders' Skips (Markings) Regulations 1984 (S. I. 1984
Carriage of Dangerous Goods (Amendment) Regulations 1998
Carriage of Dangerous Goods (Classification, Packaging and Labeling and Use of Transportable Pressure Receptacles
Regulations 1996
Carriage of Dangerous Goods by Road (Driver Training) Regulations 1996
Carriage of Dangerous Goods by Road Regulations 1996
Carriage of Explosives by Road Regulations 1996
Chemicals (Hazard Information and Packaging for Supply) Regulations 1994, 2009
Classification and Labeling of Explosives Regulations 1983
Confined Spaces Regulations 1997
Construction (Design & Management) Regulations 2015 S. I. 320
Control of Asbestos Regulations 2006, 2012
Control of Explosives Regulations 1991
Control of Lead at Work Regulations 1980, 1992, 2012
Control of Pesticides Regulations 1986
Control of Pollution (Amendment) Act 1989
Control of Pollution (Special Waste) Regulations 1980
Control of Pollution Act 1974
Control of Vibration at Work Regulations 2005
Control of Substances Hazardous to Health (Amendment) Regulations 2004
Controlled Waste (Registration of Carriers and seizure of Vehicles) Regulations 1991, 2012
Dangerous Substances and Explosive Atmosphere Regulations 2002
Disability Discrimination Act 1995.
Diving Operations at Work Regulations 1981
Electrical Equipment (Safety) Regulations 1994
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Electricity at Work Regulations 1989
Employers Liability (Defective Equipment) Act 1969
Employers Liability (Compulsory Insurance) Regulations 1998
Employers Liability Compulsory Insurance) Act 1969
The Employers’ Liability (Compulsory Insurance) (Amendment) Regulations 2008
Environmental Protection (Duty of Care) Regulations 1991
Environmental Protection (Prescribed Processes and Substances) Regulations 1991
Environmental Protection Act 1990
Factories Act 1961
Food and Environment Protection Act 1985
Gas Safety (Management) Regulations 1996
Handling Operations Regulations (as amended 2002)
Health Act 2007
Health & Safety (Consultation with Employees) Regulations 1996
Health & Safety (First Aid) Regulations 1981, 2012
Health & Safety (Safety Signs and Signals) Regulations 1996
Health & Safety Information for Employees Regulations 1989
Health and Safety (Display Screen Equipment) Regulations 1992
Health and Safety (Enforcing Authority) Regulations 1998
Health and Safety (Training for Employment) Regulations 1990
Health and Safety (Young Persons) Regulations 1997
Health and Safety (Miscellaneous Amendments) Regulations 2002
Health and Safety at Work etc Act 1974
Highways Act 1980.
Ionising Radiations (Outside Workers) Regulations 1993
Ionising Radiations Regulations 1999
GTI Plastering|Electrical O&M Manual
10
LIFT Regulations, 1997
Lifting Operations and Lifting Equipment Regulations 1998
Management of Health & Safety at Work Regulations 1999
New Roads and Street Works Act 1991
Noise at Work Regulations 1989, 1992, 2005
Notification of Installations Handling Hazardous Substances Regulations 1982
Carriage of Dangerous Goods (Safety Advisors) Regulations 1999
Occupiers Liability Act 1957 / 1984
Personal Protective Equipment at Work Regulations 1992
Petroleum - Spirit, (Plastic Containers) Regulations 1982
Pressure Equipment Regulations 1999 (S.I. 1999 No. 2001)
Pressure Systems and Transportable Gas Containers Regulations 1989
Provision and Use of Work Equipment Regulations 1998
Radioactive Substances Act 1993
Reporting of Injuries, Diseases and Dangerous Occurrences Regulations 2013
Safety Representatives & Safety Committees Regulations 1977
Street Works (Qualifications of Supervisors and Operatives) Regulations 1992
Substances Hazardous to Health Regulations 2002 (COSHH)
The Corporate Manslaughter and Homicide Act 2007
The Health & Safety (Offences) Act 2008
The Regulatory Reforms (Fire Safety) Order 2005
The Smoke free (Premises & Enforcement) Regulations 2006
Working Time Regulations 1998 AS AMENDED
Working at Height Regulations 2005
Workplace (Health, Safety and Welfare) Regulations 2013
GTI Plastering|Electrical O&M Manual
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5
General Description of The Project
5.1 Electrical Scope of Works
The electrical services installations installed to the facility comprise:
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
12.
13.
14.
Main LV distribution equipment including switchgear, distribution boards and cable containment systems
within the Basement Level electrical switch rooms.
Sub-main cable installation including mechanical services equipment, guest rooms and lift installations
including all cable containment, fixings, terminations etc.
Lighting installation complete with all emergency lighting etc. including luminaires, lamps, controls,
containment, final circuit wiring etc.
Lighting controls system.
Small power installation including supply, installation, terminations, and cable containment systems etc
Site wide Addressable fire alarm system including supply, installation, terminations, cable containment
systems and commissioning.
TV/FM/Satellite System including supply, installation, terminations, cable containment systems and
commissioning.
Disabled toilet alarm system to cover all disabled guestrooms and public toilets.
Intercom system for the Disabled Refuge and Fire Brigade
Access control system for the guest rooms
Small Power and containment only for the Voice, Data and AV Systems.
CCTV monitoring system.
Earthing and bonding installation.
Testing and commissioning.
GTI Plastering|Electrical O&M Manual
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5.2 Project Design Criteria
Service Main
Electrical Equipment
Specification
UPS Loads
Generator Requirement
Power
1250 kW
100%
100%
Lighting
15 W/m²
None 25 – 33% on
Emergency Packs
100%
Plantroom Areas Lighting
10 W/m²
None 25 – 33% on
Emergency Packs
100%
UPS Room Lighting
10 W/m²
None 25 – 33% on
Emergency Packs
100%
Battery Room Lighting
10 W/m²
None 25 – 33% on
Emergency Packs
100%
Security Systems
<1 W/m2
None 100% on Separate
UPS
100%
BMS
<1 W/m2
None 100% on Separate
UPS
100%
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5.3 LV Distribution
5.3.1
SYSTEM OVERVIEW
The LV electrical system served by the Packaged Sub-Station and switchboards located within the Switchrooms and
consists of the following major items of equipment as detailed on record drawings located in manuals.
1.
2.
Package Sub Station Switchboard PSS 1A - supplied from the A Stream HV ring (DRUPS) supply with
secondary generator back up supplies.
Package Sub Station Switchboard PSS 1B - supplied from the B Stream HV ring (DRUPS) supply.
HV cabling has been installed between the HV Switchboards and the incoming terminals of the transformer. HV
Cabling rated to 11kV has been installed between the HV Switchgear. The HV cabling installed consists of 11kV rated
red sheathed, XLPE/SWA/LSZH 3 core cables with copper tape screen to B.S.6622 type TCTA, cleated to ladder racks.
Control cabling comprises of Multicore 600/1000V grade, XLPE or PVC insulated, SWA cabling installed between the
control sections of the HV switchgear.
All distribution switchboards utilise air circuit breakers and moulded case circuit breakers and have been fitted with
protection arrangements, interface devices and terminals to facilitate the remote status monitoring to the PMS and
BMS systems.
All circuit breakers and protection have been interfaced with the PMS and BMS via terminal units located in each
Switchboard. The interconnecting control and monitoring wiring comprises of multi-core screened flexible multi-core
LSF screened cabling installed to cable trays.
5.4 System Description
The packaged substations consists of HV and LV sections coupled together by an 11kV/415V cast resin transformer
and comprising of the following components. The switchboards are described as follows with more fully detailed
information located in ZZ Switchgear manual. The ACB and MCCB positions are provided with remote monitoring to
monitor all conditions and device status interfaced to relay with the PMS & BMS systems.
Sub-main cable distribution systems from the LV switchboard have been routed on a network of cable ladders and
trays and as indicated on the Distribution Schematics/ layout drawings. The low voltage sub-main cables generally
comprise XLPE/SWA/LSF cables.
The switchboard has been provided with the following ACBs and MCCBs and on the incoming and outgoing ways as
detailed in the table below.
GTI Plastering|Electrical O&M Manual
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Sub Switchboard PSS 1a
WAY REFERENCE
MCCB / ACB / FUSE
INCOMING / OUTGOING ACB
SUPPLY FROM HV/1A via TRANSFORMER TXA
4000 TP&N ACB (NORMALLY CLOSED)
OUTGOING WAY
UPS 1 SUPPLY
1600A 4P ACB (NORMALLY CLOSED)
UPS 2 SUPPLY
1600A 4P ACB (NORMALLY CLOSED)
UPS 3 SUPPLY
1600A 4P ACB (NORMALLY CLOSED)
UPS 4 SUPPLY (FUTURE)
1600A ACB CHASSIS
STATIC BYPASS
3200A TP&N ACB (NORMALLY CLOSED)
MAINTENANCE BYPASS SUPPLY
2500A 4P ACB (NORMALLY CLOSED)
POWER FACTOR CORRECTION EQUIPMENT (FUTURE)
1000A TP&N CHASSIS
TRIPPING BATTERY SUPPLY
100A TP&N FIXED FUSE SWITCH
5 NO SPARE WAYS
160A TP&N MCCB PLUG IN BASE
2 NO SPARE WAYS
100A TP&N MCCB PLUG IN BASE
TRANSIENT OVERVOLTAGE PROTECTION
200A TP&N FUSES
GTI Plastering|Electrical O&M Manual
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5.5 Control
The Package Sub Switchboards are provided with incoming power to the 11kV/415V transformers which are
connected to the incoming section of the LV switchboards. The Package Sub Switchboards are provided with an
emergency power off (EPO) system which will shut down the LV switchboards when activated. The system forms part
of the REF (restricted earth fault) relay system and transformer temperature monitoring system as detailed within
the HV Distribution system in this manual.
The UPS is connected via the Landlords LV Switchboard PSS 1A which can be used to bypass the UPS and feed the
critical load with raw mains power (from DRUPS Power Station D). A Castell interlock system prevents the bypass
circuit from being activated unless the UPS units are in static bypass, preventing damage to the UPS system. The
Bypass Panel also provides complete isolation of each of the UPS and SBM units such that the devices can be serviced
or even completely replaced without removing power to the critical load.
The UPS Output Switchboard A1 is split into two sections via an ACB normally closed bus coupler. In the event of loss
of power to Stream A the switchboard provides essential no break supplies to the PDU 1A. The switching procedures
are detailed within these Operating and Maintenance Manuals.
5.6 Equipment
5.6.1
Lv Switchboards
The switchboards are floor mounted, free standing boards and comprise single busbar system, incorporating
incoming and outgoing ways with final circuit protection via ACB's, MCCB's and HRC fuses. The switchboards are
designed for front operation and are constructed to the requirements of BSEN 60947. The switchboards are air
insulated and have mechanical ingress protection rated at IP31 in accordance with IEC62271-200.
All package switchboards have been protected against transient over voltage by means of electronic protection
devices.
The switchboards are designed for the following operations to be performed safely when the assembly is in service
and under load:
1.
2.
3.
4.
5.
6.
5.6.2
Visual inspection of switching devices and other apparatus; settings and indicators of relays and releases;
conductor connections and markings
Adjustment and re-setting of relays, releases and electronic devices
Replacement of fuse links
Replacement of indicating lamps
Testing and calibration of metering and protection units
Thermal scanning of connections via a thermal imaging window
Busbars
The busbars comprise of rectangular section, hard drawn, high conductivity copper bars which are air insulated and
are designed to withstand the fault level for 1 second. Fully rated phase and enhanced neutral busbars (150%) are
provided within the package substation and UPS output switchboards. Fully rated phase and neutral busbars are
provided within the mechanical services switchboard.
GTI Plastering|Electrical O&M Manual
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5.6.3
Transformer
The transformers consist of a vacuum cast coil dry transformer enclosed within the HV Section of the Packaged
Substation panel. The transformers ambient room’s conditions are cooled to provide a maximum temperature of 40
deg C.
Each transformer is enclosed in ventilated enclosure with access to the transformer via front access doors. These
doors are provided with mechanical Castell key safety interlocks to prevent unauthorised opening and tampering.
The transformer is provided with over current, short circuit current, earth fault, and restricted earth fault protection.
Transformer windings are fitted with internal overheat temperature sensors/thermostats and terminals to provide
overheat condition audible and visual alarm indication and trip remote indication to the PMS., together with
terminals to shunt trip the transformers primary side protection circuit breaker, as indicated on the manufacturers
drawings.
In addition current transformers (CT's) have been installed to monitor current flow to earth, placed around the
transformers star connection Earthing conductor. This 'reference earth' current transformer (CT) is connected to
facilitate the shunt trip operation of transformers secondary side LV ACB circuit breaker, as indicated on the
manufacturers drawings.
In the event of the LV ACB or HV VCB being tripped due to operation of the transformer high temperature cut-out or
restricted earth fault relay operating, the ACB and VCB will need to be reset once the cause of the fault has been
rectified.
5.6.4
Air Circuit Breakers (ACB'S)
Each switching device is operated by means of energy stored in a manually charged spring with both manual and
electrical releases with indication of both 'Charged' and 'Discharged' status.
Both the incoming and outgoing ACB's comprise of manually operated stored energy, withdrawable pattern fitted
with CT operated solid state over-current plus earth fault protection relays, tripping device providing adjustable long
time, short-time and instantaneous tripping characteristics.
Padlocking facilities have been provided to prevent breaker operation, maintain isolation and include facilities to
prevent the operation of the ON and/or OFF buttons and the facility of padlocking the ACB in the disconnected
(withdrawn) position.
The ACBs are provided with electronic ( Micrologic 2.0/5.0) trip units as detailed in the equipment schedules of this
manual.
5.6.5
Multifunction Power Meters
The switchboards have multifunction power meters to measure various parameters including Voltage, Current,
Power, Power Factor, Frequency, etc which can be viewed on the meter display.
All meters are powered from the 24V dc battery tripping system and are linked together via a Modus comms system
back to the interface section. All meters are fitted with appropriately rated current transformers and fused sensing
supply. The meters are connected to the PMS using RS485 cable connected to a common terminal block in the bussection panel.
GTI Plastering|Electrical O&M Manual
17
5.6.6
Surge Protection
The surge protection device provides protection against voltage surges typically induced on the mains typically by
lightning strikes. The unit is provided with remote visual indication in the event of a fault. The unit provides the
following operation and indication elements:
1.
2.
3.
4.
Green Only - Full protection, power ON.
Green + Red - WARNING: Reduced protection, replace unit as soon as possible.
Red only = NO PROTECTION. Replace unit immediately.
No Lights = NO power connection or fault. Check external fuses and connections.
A reduced protection remote indication facility via a normally open and a normally closed volt free contact. The
normally open (NO) contact is open when the ESP unit is healthy and power is present. The normally closed (NC)
contact is closed when the unit is healthy and power is present.
In addition to a warning of the reduced protection state, the normally closed volt free contact can also be used to
signal power loss on one or more phases.
5.6.7
Earth Fault Protection & Intertrip Relay
The Switch panels are fitted with a MCAG type stabilized earth fault current relay that provides zero-current
differential protection of the star point winding (restricted earth fault) of a transformer. The output is monitored by
the PMS.
The MCAG14 REF Relay is powered by 24V DC supply. In the event of an over current or earth fault scenario being
detected by the Relay, the HV Breaker will be inter-tripped and trip off the Mains incoming ACB.
The status of the trip will be indicated by the LED on the front of the unit.
5.6.8
Tripping Batteries
Each of the switchboards are provided with battery and charger units, providing 24Vdc supplies for the tripping,
closing and auxiliary supplies to the integral control devices.
Each unit incorporates a sealed lead acid battery and an automatic constant voltage charger, which provides 24 hour
standby capacity. Each tripping battery unit has the following features:
1.
2.
3.
4.
5.
6.
7.
Input voltage 230V ac, single phase +/-10%
Voltage drop at full load 2%
Battery capacity suitable for 3 open/close operations of all devices without recharge. Full recharge is
achieved in 24hours
Lead acid sealed cell to BS6290 Part 4 with a design life of 5 years
Battery monitor to show Battery voltage (V), Battery charge/discharge current (A), Ampere-hours consumed
(Ah), State of charge (%), Time to go at the current rate of discharge, visual and audible alarm for over and
under voltage, and/or battery discharged.
Indicator lamps to provide indication of Mains earth, Low Battery Volts, Charger Fail, Power supply Fail,
Battery Protection activated, fuse failure.
Battery protection unit to disconnect the battery from non essential loads before it is completely discharged
(which would damage the battery) or before it has insufficient power left.
A common alarm will be raised at the PMS upon charger failure or output failure.
All units are fitted with a charge fail alarm relay linked to the PMS via a set of volt-free contacts.
GTI Plastering|Electrical O&M Manual
18
6
OPERATING PROCEDURES
6.1 Introduction
This Section of the Manual provides routine operating information for the system installed. Nature of the installation
is such that other than the initial operation of dead circuits, there are only a few tasks to perform on a regular basis.
The services to the premises will have been energised and set to work with tests carried out to ensure it’s correct
operation and function particularly with regard to safety systems and interlocks.
These Operating routines should only be carried out by trained and competent personnel who have an understanding
of the systems being energised and its implication on other related systems.
When operating and setting equipment and systems a systematic approach must be taken. Therefore it is essential
that the operative understand the system controls and settings at each stage of operation, so that they can properly
react to any unexpected or unforeseen condition and take the appropriate action.
The manufacturers’ manuals and literature must be consulted and referenced to ensure that routines are followed
particularly if there is an unexpected loss or supply or service.
For Specialist systems detailed in this Section as a minimum the authorised user should ensure the following
operations and system information is available, noted and followed:






User Pass Codes.
Engineer Pass codes.
Reporting of any faults, incidents or system alterations.
Ensuring system is tested and maintained in compliance with the relevant legislation, Codes of Practice, Fire
Authority or Insurance Company requirements.
Record keeping of any events.
Emergency Contact Numbers.
6.2 Safety Procedures
The following is a brief guide to the procedures that can be generally adopted minimise the risk to authorised
personnel as well as protecting plant and equipment from damage.
WARNING – HV & LV SWITCHGEAR CARRIES VOLTAGES WHICH ARE LETHAL & MUST ONLY BE OPERATED BY
AUTHORISED COMPETENT PERSONS.
Access to switch rooms and electrical distribution equipment should be restricted to authorised, trained and
competent personnel who are likely to be engineering staff or qualified personnel working under the control of the
engineering staff. Works in the HV Switchrooms to be only carried out by authorized and competent persons
appointed by a qualified HV engineer.
Prior to switching on a circuit check that the equipment or outlets served to ensure equipment and switchgear are
serviceable and safe to operate. If the circuit has unexpectedly stopped operating then ensure the fault-finding
routines are followed. DO NOT switch or replace the protective device as not only can this endanger lives but this may
cause further damage to the systems or equipment served.
When switchgear, distribution boards, or any other item of plant or equipment is out of service, unserviceable or
unsafe, the item in question must be electrically isolated. All fused switches, circuit protective devices etc., must be
switched off and a suitable warning notice fixed in place.
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There are generator backed up power supplies which have automatic changeovers in the Event of power loss,
therefore every source of supply must be isolated and prior to working on equipment.
Secondary power supply systems are provided by generators, battery backup for emergency lighting, fire alarms,
access control systems and intruder alarm systems, must have all sources of supply isolated and prior to working on
equipment. Remote isolation for equipment must be locked off to prevent unauthorised or inadvertent reenergisation of power.
1.
2.
3.
4.
5.
6.
Check to ensure that switch rooms, and plant areas are clean and free from obstruction.
Check to ensure all equipment is properly secured, equipment covers and guards are in place.
Check to ensure that all equipment access panels and doors are closed and secured.
Ensure that all tools and safety equipment are serviceable and in their proper space.
Check that fire-extinguishers are in place and have been serviced.
Check that fire-extinguishing systems are serviceable.
6.3 Permits to Work
A permit to work will be required when maintenance work can only be carried out if, after carrying out a suitable risk
assessment, normal safe working practices cannot be followed.
A permit to work system usually comprises of a written document which specifies the extent of the works,
precautions to be taken and anticipated timescale.
The document will usually need to be signed by a suitably experienced and qualified senior member of the employer’s
staff.
6.4 Emergency Procedures
The emergency procedures are intended as a guide only, for each emergency situation that arises has to be taken in
the light of its degree of severity and the conditions prevailing at the time.
Never take risks in an emergency, for a risk can turn a minor emergency into a major one. The safety of personnel
must always come first.
Any temporary repairs effected or arrangements made during or after an emergency must be corrected as soon as it
is practically possible.
The emergency procedures are intended as a guide only, for each emergency situation that arises has to be taken in
the light of its degree of severity and the conditions prevailing at the time.
6.5 Manufacturers Recommendations
Where the following schedules refer to specific manufacturers operation or fault finding recommendations then
reference must be made to the referenced documents of this manual.
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6.6 LV Switchboards
A substation has been provided on site by Scottish and Southern Energy (S&SE). The substation is located in a
reinforced section of the Energy Centre at Ground Floor Level. LV supply cabling has been installed from the
transformer LV cabinet in the substation to the LV switch panel located in the adjacent room of the Energy Centre
allocated as the main LV switchroom.
6.6.1
Start Up Procedures
Prior to switching on for the first time or following a long period of shut down, it will be necessary to carry out a
general inspection of the LV Switchboard following the manufacturers literature recommendations located in this
manual to ensure they are safe and suitable to operate.
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
12.
13.
14.
15.
16.
17.
18.
19.
20.
21.
22.
Ensure power is available to both sides of the LV Switchboard via the HV/LV Transformers.
Visually inspect the HV switches on the transformers. The upper mechanism has two operating springs; one
for closing and one for opening. Both springs are charged in one operation. Open and Close the circuit
breakers by operating the mechanical push buttons.
The lower mechanism operates the earth switch. There is a mechanical interlock between these two
mechanisms which prevents operating of the disconnector and earthing switch when the circuit breaker is in
closed position. When the earthing switch is in closed position it will be impossible to operate the
disconnector, but the circuit breaker can be closed for testing purpose.
Once the transformers have been connected to the H.V. mains voltage will be applied in a non-load state
and observed for one hour. No anomalies should occur during this period of time.
After storage or disconnection for a longer period, it is recommendable to connect the transformer during
four hours in no-load in order to dehumidify through core heating. After this period it can be put into a
normal operation.
The voltage will be measured at the L.V. terminals to check the corresponding output voltage depending on
the transformation ratio.
Apply the load progressively until the rated power is reached and check the increase in temperature.
Check the transformer temperature monitoring system.
Ensure LV ACB is in the OFF position.
Close the earth switch to the HV switch.
Close the incoming HV switch using the pushbuttons.
Check the HV switch position indicators denote the status as ON.
Voltage should be applied to the Transformer for 1-4 hours with no load to ensure no anomalies occur.
Check LV voltages at transformer LV terminals and apply LV load progressively and monitor increase in
temperature.
Visually inspect LV switchboard and ensure all outgoing devices are open. Check settings/ratings of outgoing
devices.
The main ACB is motorised and will automatically recharge after each closing. Check the unit shows a
‘charge’ and ‘OK’ display.
Press the button to close the ACB.
Check metering shows voltage is present.
Close the outgoing ACB’s or MCCB’s serving the LV equipment.
Check surge protection device visual indicator shows normal.
Check earth fault relay unit LED show a healthy condition (GREEN).
Confirm the meter readings and breaker status indication is correct on the BMS PC.
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6.6.2
Normal Operation
The main LV Panel has an essential and non-essential side, the non-essential side will drop out when the main
incoming breaker detects undervoltage, and motorised MCCB's controlled and monitored by the BMS, will enable
progressive loading of the switchboard as the generator starts up or the main supply comes live.
The main LV panel has the facility to have a mobile generator connected to in the event of power failure. Cabling has
been installed from the LV Switch room to the mobile generator location and a mobile generator connection pillar
has been installed for connection of an 800kVA unit.
The generator will not automatically power up but can manually switched by the client. Essential and non-essential
services are detailed on the main LV Schematic drawing XXXXX, with motorised MCCBs annotated together with
BMS connections. The Main Building will remain fully operational when the mobile generator is the main power
source.
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7
Maintenance Procedures
7.1 Introduction
It should be remembered that remotely controlled systems items of equipment may become energised without
warning. It is therefore imperative to ensure that any such item of equipment is fully isolated before maintenance
work is carried out.
The maintenance instructions comprise, generally, recommendations relating to the schedule of maintenance tasks,
designed to ensure that the various maintenance procedures required for each of the individual services and systems
are carried out at the correct intervals in order to maintain all plant at the maximum efficiency and minimise
breakdown and interruption to services.
Maintenance is required to be carried out to comply with equipment manufacturer’s warranties.
The maintenance instructions within make certain recommendations with regard to the general maintenance
procedures to be adopted in respect of non-specialised plant, the maintenance of specialised plant being detailed in
the separate instruction manuals provided by the equipment suppliers. All required manufacturers literature is
supplied with this manual.
Prior to carrying any maintenance works the operative must be trained and competent both in the equipment and
systems being maintained as well as in the complexity level of work being carried out. The operative should be fully
conversant with the relevant Health and Safety Legislation. Isolation means the operation of switches, the removal of
fuses or links, or physical disconnection of conductors in order to make any system, or part of a system, DEAD and
secured so that it cannot be inadvertently made alive. This will involve cutting off an electrical installation, a circuit or
an item of equipment from every source of electrical energy.
Particular attention must be paid to secondary means of power supplies.
In general remember the following golden rules:
•
•
•
•
•
•
•
Identify the source(s) of supply.
Isolate.
Secure isolation.
Test that the equipment/system is DEAD, then begin work.
Reference should be made to the Health and Safety Executive’s Health and Safety series
booklet HS(G) 85 on Electricity at Work available from Government bookshops.
Reference should be made to Electricity at Work Guide 1989.
Reference should be made to the appropriate section of the B.S.7671 Regulations for Electrical
Installations prepared by the Institution of Electrical Engineers.
A regular and organised programme of maintenance work, planned to cover all details of the installation within
given maintenance periods, will ensure continued satisfactory operation with a minimum liability to interruptions to
supply caused by equipment faults.
Careful attention must be given to securing the safety of personnel and equipment while maintenance or repair work
is in progress.
Where maintenance work is in progress a DANGER notice must always be attached to any "live" apparatus to call
attention to the danger of approach. A CAUTION notice must always be attached to plant or its associated control
equipment warning of possible damage to equipment, which may be caused by interference.
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Before any work is commenced on any item of equipment, the supply and ancillary circuits must be made "dead" and
locked off.
7.2 Maintenance Matrix
MAINTENANCE / CLEANING INSTRUCTIONS
ITEM
D
W 1M 3M 6M 12M 36M 60M+ NOTES
PERIODIC INSPECTION & TEST
X
HV/LV TRANSFORMER
X
STANDBY GENERATOR
X
SWITCHBOARDS
X
X
DISTRIBUTION BOARDS
X
X
RCBO’S (TEST REGULARLY)
LUMINAIRES
X
EXTERNAL LIGHTING
EMERGENCY LUMINAIRES
X
X
X
X
X
X
BATTERY CHARGING EQUIPMENT
X
X
BATTERIES
X
X
FIRE ALARM SYSTEM
X
X
X
DISABLED REFUGE
X
X
X
DISABLED CALL SYSTEM
X
MECHANICAL MAINTENANCE
SEE MAINTENANCE CONTRACT
FUNCTIONAL TEST
X
X
X
TELECOMMS/DATA
AS REQUIRED
SMATV/FM SYSTEMS
X
REFER TO SPECIALIST
ACCESS CONTROL SYSTEM
X
REFER TO MAINTENANCE CONTRACT
SECURITY SYSTEMS
X
For more specific maintenance frequencies and maintenance instructions refer to Maintenance Providers
maintenance information.
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7.3 Specialist Maintenance
The maintenance of specialist systems and equipment should only be carried out by the Manufacturer/Supplier or
Approved Agent because of the requirements for particular knowledge and the use of special equipment and
methods.
The following systems are considered to require specialist maintenance due to the nature of the systems and the
specialist equipment required carry out testing and maintenance. It is generally a requirement of building insurance
policies, local authority and fire authorities that approved and recognised Contractors provide the required
certification.








Fire Alarm System.
Disabled Refuge System.
TV/FM System.
Security Alarm Systems.
Access Control Systems.
CCTV System.
Lightning Protection.
Lift/ Mechanical Equipment.
7.4 Monitoring Of Electrical Services
It is recommended that the following monitoring information is kept to assist in the formation of a bespoke
maintenance programme for the building as well as energy consumption analysis.







Power Consumption.
 Recording of power consumption of as well as maximum demand readings.
Batteries.
 Record specific gravity of electrolyte in lead acid batteries as well as nickel cadmium
alkaline batteries.
Lighting.
 Illuminance levels.
Testing.
 Electrical services to NICEIC recommendations.
 Fire, Security and Safety Systems
 Emergency Lighting
Maintenance.
 Dates of all systems maintenance
 Faults, repairs and alterations
 Dates of all systems
Controls.
 Details of controls, time switches etc, settings and alterations.
Spares.
 Details of spares and stock levels.
7.5 Periodic Testing & Inspection
The periodic routine maintenance of the plant and equipment as recommended in the following sections should be
adequate to maintain the installation in a safe and serviceable condition.
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The complete installation should, however, be subject to periodic inspection and testing from the completion date on
the installation and in accordance with the current edition of IEE regulations BS7671 Guidance Note 3 Inspection &
Testing.
Where manufacturers recommend it and suppliers that specific items of plant should be subject to inspection
overhaul on a periodic basis, arrangements should be made to ensure that such recommendations are carried out.
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8
Equipment & Suppliers Schedules
A schedule is provided for each item of plant and or equipment installed to the building / facility. Each package
contractor will complete accordingly.
8.1 Item 1
SCHEDULE
REF
DB*
DESCRIPTION
MCB DISTRIBUTION BOARDS
MODEL
ISOBAR 4
LOCATION
PLANTROOM
CONTACT DETAILS
NAME
SCHNEIDER ELECTRIC
ADDRESS
MERLIN GERIN
..
123 JACK LANE
...
HUNSLET
....
LEEDS
POSTCODE
LS10 1BS
PHONE
0113 290 3702
FAX
0113 290 3669
COUNTRY
UK
WWW
www.schneider.co.uk
ENERGY
VOLTAGE
400/3/50
ITEM DATA
PARAMETER
VALUE
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FINISH
N/A
ACCESSORIES
DESCRIPTION
PART NUMBER
TYPE B MCB (* INDICATES PHASE/RATING)
C60HB***
TYPE C 30MA RCBO (*INDICATES DEVICE
RATING)
C60HC*R30
BLANKING STRIPS
BP
SPARES
PART NUMBER
QUANTITY
NONE RECOMMENDED
N/A
HEALTH & SAFETY
RESIDUAL RISK
N/A
COSHH
N/A
DISPOSAL
N/A
REFERENCED DOCUMENTS
OM_MANUAL
MERLIN GERIN [0.19Mb] (Hyperlink To O&M Literature)
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8.2 Item 2
SCHEDULE
REF
DB*
DESCRIPTION
MCB DISTRIBUTION BOARDS
MODEL
ISOBAR 4
LOCATION
PLANTROOM
CONTACT DETAILS
NAME
SCHNEIDER ELECTRIC
ADDRESS
MERLIN GERIN
..
123 JACK LANE
...
HUNSLET
....
LEEDS
POSTCODE
LS10 1BS
PHONE
0113 290 3702
FAX
0113 290 3669
COUNTRY
UK
WWW
www.schneider.co.uk
ENERGY
VOLTAGE
400/3/50
ITEM DATA
PARAMETER
VALUE
FINISH
N/A
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ACCESSORIES
DESCRIPTION
PART NUMBER
TYPE B MCB (* INDICATES PHASE/RATING)
C60HB***
TYPE C 30MA RCBO (*INDICATES DEVICE
RATING)
C60HC*R30
BLANKING STRIPS
BP
SPARES
PART NUMBER
QUANTITY
NONE RECOMMENDED
N/A
HEALTH & SAFETY
RESIDUAL RISK
N/A
COSHH
N/A
DISPOSAL
N/A
REFERENCED DOCUMENTS
OM_MANUAL
MERLIN GERIN [0.19Mb] (Hyperlink To O&M Literature)
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8.3 Asset Register
ASSET
MANUFACTURER
NUMBER DESCRIPTION
ENERGY
MODEL
NAME
SPARES
OUTPUT CONSUMPTION
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9
Literature
Each Package Contractor has provided manufacturers literature for the materials and equipment installed as per the
following schedule.
Equipment Index
Supplier
Description
Model
Link
ABB LIMITED
DRY TYPE CAST RESIN
TRANSFORMER
2500 & 2000 KVA
11000/433V AN
ABB TRANSFORMER , 2.68Mb
ELECTRICAL
ENGINEERING LTD
1600A, 2500A & 3200A 4
POLE BUSBAR
IP54 4 POLE HIGH
POWER BAR
IP54 4 POLE HIGH POWER BAR , 1.69Mb
ELECTRICAL SYSTEMS
LIMITED
LIGHTING TRUNKING
WITH LID
PRE GALVANISED
LIGHTING TRUNKING
PRE GALVANISED LIGHTING TRUNKING, 2.25Mb
ELECTRICAL LIGHTING
SOLUTIONS
EMERGENCY EXIT
LUMINAIRE
VRM30/ICEL/ST/EX
VRM30/ICEL/ST/EX, 0.03Mb
FUTURE LIGHTING
SOLUTIONS
SURFACE IP65
LUMINAIRE - C/W 3HR
EMG BATTERY BACKUP
GFW149/T5/HF/PC
SIMMTRONIC LTD
LIGHTING CONTROLS
LIGHTING CONTROL
SYSTEM
(Hyperlink to
document)
(Hyperlink to document)
(Hyperlink to document)
(Hyperlink to document)
GFW149/T5/HF/PC, 0.05Mb
(Hyperlink to document)
LIGHTING CONTROL SYSTEM, 0.43Mb
(Hyperlink
to document)
The information is provided overleaf and is linked within the electronic documentation.
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10 Commissioning Data & Certification
Where the material or equipment requires certain certification the schedule below is completed with details:
Description
Status
01 ELECTRICAL TEST CERTS STREAM A
Link, [ 0.2mb ] (Hyperlink To Certificate)
04 CONTROL CABLING TEST CERTS
Link, [ 0.51mb ] (Hyperlink To
Certificate)
05 STREAM A & B INTERTRIP WITNESS
Link, [ 0.07mb ] (Hyperlink To
Certificate)
06 UPS BUSBARS
Link, [ 0.78mb ] (Hyperlink To
Certificate)
07 ACO TESTS
Link, [ 63.93mb ] (Hyperlink To
Certificate)
09 EMERGENCY LIGHTING NICEIC
Link, [ 3.15mb ] (Hyperlink To
Certificate)
10 EMERGENCY LIGHTING TEST RECORDS
Link, [ 0.69mb ] (Hyperlink To
Certificate)
The information is provided overleaf and is linked within the electronic documentation.
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11 Drawings
Where the Package Contractor is responsible for providing record drawings, they are provided as per the schedule
below:
Ref
Description
Link
E-001
ELECTRICAL DISTRIBUTION SCHEMATIC
(Hyperlink To Drawing)
E-002
EARTHING SCHEMATIC
(Hyperlink To Drawing)
E-003
PLANT & DATA HALL EARTHING LAYOUT
(Hyperlink To Drawing)
E-1-101
PLANT ROOM EQUIPMENT LAYOUT
(Hyperlink To Drawing)
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