SECTION 4
SPECIFIC RESPONSIBILITIES

4.1 Drawings

4.1.1 Site

1. Equipment

Show locations of service points, power poles, transformers, grounding, lighting standards, luminaires, distribution panels, parking outlets and other equipment.

2. Wiring

Show location and routing of all wiring including services, feeders, branch wiring and empty conduit.

3. Details

Provide details as required for equipment pads and bases, vaults, grounding, ductbanks, manholes, parking distribution equipment, luminaire and parking outlets.

Provide information necessary for coordination of site services with utilities.

 

4.1.2 Lighting

1. Luminaries

Show location, identification, type, circuiting and switching. Coordinate luminaries with ceiling finish to ensure proper application, accessibility for maintenance, etc.

2. Switches and Controls

Show location, circuiting and control method.

3. Branch Wiring

Show home runs to panels, runs with multiple circuits, junction and outlet boxes.

Show special mounting and installation provisions where required.

4. Low Voltage Switching and Dimming

Show locations of switches, dimmers and control panels.

4.1.3 Power

1. Service

Show location and general arrangement of service and service equipment.

2. Distribution

Show locations, identification and approximate physical sizes of switchgear, distribution panels, branch panels, motor control centres and splitters.

Show location and general routing of bus duct, cable tray, underfloor raceway and feeders.

Provide equipment elevations and details where required by project size and complexity.

3. Outlets

Show location, identification, type, rating, load and circuiting for power outlets, equipment connections, convenience outlets, receptacles, motors, loose motor control, disconnects and special outlets.

Ensure outlet symbols are properly identified and that applicable CSA designations are shown.

Indicate feeder sizes on either floor plans, single-line or on schedules.

4. Branch Wiring

Show home runs to panels, runs with multiple circuits, junction and outlet boxes.

Show special mounting and installation provisions, where required.

5. Electric Heat

Show location, layout and mounting of electric heaters and heating cables.

4.1.4 Life Safety Systems

1. Emergency Lighting and Power

a) Emergency Generators, Transfer Switches and Distribution  Show location, identification, general arrangement and approximate sizes.

Include either a schematic diagram or operational description and control sequence in the documentation.

b) Luminaries and Power Supplies

Show location, identification, type, ratings and circuiting.

c) Exit Signs

Show location, type, mounting, circuiting and directional arrows.

d) Equipment

Show location, connection and circuiting for emergency equipment such as fire pumps.

e) Branch Wiring

Show feeders, home runs, runs with multiple circuits, outlet and junction boxes.

2. Fire Alarm

a) Equipment

Show location, identification and approximate sizes of control panels, annunciators, power supplies and amplifiers.

b) Devices

Show location, type and zoning for manual stations, automatic detectors, signals, door holders, door locks, flow switches, microphones, handsets and speakers.

c) Interface

Show location of connections to other equipment such as fire dampers, air handling units, smoke doors, sprinkler pumps, elevators, etc.

d) Branch Wiring

Show home runs, runs with more than one zone, outlet and junction boxes.

4.1.5 Communications

1. Raceways and Wiring

Show location, routing and sizes of risers, cable tray and distribution conduits.

Show wiring for home runs, runs with more than one zone, outlets and junction boxes.

2. Telephone

a) Equipment

Show location, identification, type and approximate sizes of telephone switches, panels, patch panels and closets.

Show telephone line protection and grounding.

b) Outlets

Show location and identification of switchboards, outlets, zone and junction boxes.

3. Public Address, Sound Masking, Sound Reinforcement and Intercom

a) Equipment

Show location, identification, type and approximate sizes of amplifiers, signal sources, processors, switches, master stations and patch panels.

b) Outlets

Show location, type and zoning of speakers, microphones, jacks and outlets.

4. Closed Circuit TV

a) Equipment

Show location, identification, type and zoning for cameras, switchers, processors, recorders and monitors.

5. Master Antenna Systems

a) Equipment

Show location and type of antennae, amplifiers, splitters and outlets.

b) Mounting

Detail mounting requirements for antennae.

6. Intrusion Alarm and Door Security

a) Equipment

Show location, identification, type and zoning for control panels, door switches, motion detectors, detection equipment, control stations and signals.

7. Data System Wiring

a) Equipment

Show location, identification, type and approximate sizes of central equipment, panels, patch panels, closets, outlets and jacks.

8. Radio, Mobile Radios and Pagers

a) Equipment

Show location, identification, type, mounting and approximate sizes of antennae, central equipment and panels.

9. Nurse Call

a) Equipment

Show location, identification, type and approximate sizes of control panels, annunciators, master stations and panels.

b) Outlets

Show location, type and zoning of stations, indicators and outlets.

10. Clock Systems

a) Equipment

Show location, identification, type and approximate sizes of control panels, annunciators, master clocks.

b) Outlets

Show location, type and zoning of clocks.

4.1.6 Controls

1. Equipment

Show location, identification, type and approximate sizes of equipment, control panels, control devices and outlets for control systems such as building management systems and process controls, etc.

2. Wiring

Show wiring for home runs, runs serving more than one device, outlets and junction boxes. Provide control schematics where required.

4.1.7 Grounding

1. Show location, type and configuration of all grounding electrodes.

2. Show size, type and routing of all grounding conductors.

3. Show location and connection of all air terminals, interconnections and down conductors for lightning protection, including antennae.

4. Show details of all special grounding means, such as grids, high impedance grounding, computer floors and outlets, etc.

5. Show details of cathodic protection.

4.1.8 Special Systems

1. Equipment

Show location, identification, type and approximate sizes of equipment, panels and outlets.

Adequately detail requirements for power supply systems such as stand-by generators, uninterruptible power supply systems, motor-generator sets, battery systems, etc.

2. Wiring

Show wiring for home runs, runs with more than one device, outlets and junction boxes.

4.1.9 Risers and Single Lines

Provide schematic riser diagrams showing general configurations for:

1. Power System Single Line

Show configuration, type, voltage and amperage ratings of the service and all switchgear, panelboards and Motor Control Centres.

Show type, frame size and trip ratings of all overcurrent protective devices. Show metering control and relaying provisions. Unless shown elsewhere on floor plans or schedules, show feeder sizes.

Show available and rated fault current at all switchgear, panelboards and overcurrent devices, if over 10,000 amps.

2. Fire Alarm Riser

Show general system configuration, control panels, annunciators, typical zones and interconnections.

3. Other System Risers

Show general system configuration, control panels, annunciators, typical zones and interconnections.

4.1.10 Schedules

1. Luminaries

Show type, description, lamps, ballasts, diffusers and mounting.

2. Panels

Show type, circuits, voltage, amperage, breakers and space quantities and mounting.

3. Motors and Equipment

Show designation, horsepower (or kW), and/or full load amperage, disconnect type, starter type, pilot devices, controls and interlocks. For all motors, kitchen equipment and special loads, coordinate requirements with appropriate consultant. Ensure all motor control is adequately and properly documented.

4. Electric Heat

Schedules should properly specify all electric heat required, such as baseboards, unit heaters and heating cables, etc.

4.2 SPECIFICATIONS

Do not use general compliance clauses to avoid providing adequate documentation.

Do not place the onus for adequate design on third parties.

Do not use exclusive or restrictive specifications unless the Owner is aware of and agrees to this process and that measures are taken to prevent undesirable bidding practices.

4.3 OTHERS

1. Fault Analysis

Conduct a fault analysis on the distribution system to ensure that all components specified are rated for the available fault current.

2. Overcurrent Coordination

Conduct a preliminary overcurrent coordination study to ensure that the specified equipment can be physically coordinated.

3. Voltage-Drop

Conduct voltage-drop calculations as required to ensure design complies with applicable Codes and good engineering practice.

4. Harmonics

Ensure the design takes into account the effects of non-linear electrical equipment, such as electronic ballasts, computer power supplies, variable speed drives, diodes for lamps, etc. Ensure adequate measures are taken to counteract adverse effects of harmonics.

5. Hazardous Areas

Delineate and classify all hazardous areas and document requirements for wiring and equipment. Indicate the type and extent of hazardous areas on drawings.

6. Schematic Diagrams

Provide schematic diagrams for high-voltage, low-voltage and control systems to suit system complexity.

7. Wiring

Documentation should include sizes, types and insulation ratings for all conductors.

8. Specialty Systems

Specifications of either a control sequence description or a schematic diagram should be included in the documentation.

9. Reference Tables

Use of circled numbers and/or letters in conjunction with reference tables should be minimized. Use should be restricted to notes where extensive lettering would obscure the drawings.

 

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