Section Cover Page
Section 16442
2000-06-01Branch Circuit Panelboards

This Master Specification Section contains:

.1This Cover Sheet

.2Data Sheet – Reference Documents

.3Data Sheet - Sample Schedules

.4Specification Section Text:

1.General

1.1Related Sections

1.2Source of Supply

1.3Reference Documents

1.4Product Data

2.Products

2.1Panelboards

2.2Panelboards with Isolated Ground Bus

2.3Panelboards with Contactors in Mains

2.4Loadcentre Panelboards

2.5Panelboard for Service Entrance

2.6Loadcentre Panelboard for Service Entrance

3.Execution

3.1Installation

3.2Schedules

BMS Basic Master Specification
Alberta Infrastructure
Master Specification System / Page 0
Data Sheet - Reference Documents
Section 16442
2000-06-01Branch Circuit Panelboards

Applicable Standards

.1CSA C22.2 No. 29-M1989(R1995)Panelboards and Enclosed Panelboards

These reference documents may be available for reference purposes in the Technical Resources and Standards Branch Library, Alberta Infrastructure, 3rd Floor, 6950 - 113 Street, Edmonton; Telephone:(780) 427-7924.

BMS Basic Master Specification
Alberta Infrastructure
Master Specification System / Page 01
Data Sheet - Sample Schedules
Section 16442
2000-06-01Branch Circuit Panelboards

Branch Circuit PanelL2D - Individual Circuits

42Circuits120/208Volts,3Phase,4Wire

Enclosure:surfaceBus:225A.

Load / Breaker / Poles / Trip / Feeder / Notes
Receptacles / 1 / 1 / 15 / 2#12 / Main floor
Receptacles / 1 / 1 / 15 / 2#12 / Second floor
Luminaires / 1 / 1 / 15 / 2#12 / West End
Luminaires / 1 / 1 / 15 / 1#12 / East End
Dryer / 1 / 2 / 30 / 3#10 / Laundry
Range / 1 / 2 / 40 / 3#8 / Kitchen

Branch Circuit Panelboards - Summary

120/208Volt,3Phase,4Wire

Panel / Circuits / Bus / Enclosure / Brkrs / Poles / Trip / Notes
M6A / 36 / 100 / surface / 2 / 1 / 15
M6EA / 24 / 100 / surface / 14 / 1 / 15
1 / 1 / 15 / exit lights
1 / 3 / 40 / timer T5

END OF DATA SHEETS

BMS Basic Master Specification
Alberta Infrastructure
Master Specification System / Page 01
Section 16442
Plan No:Branch Circuit Panelboards
Project ID:Page 1

1.General

1.1RELATED SECTIONS

.1Electrical General Requirements:Section16010.

.2Electrical Identification:Section16075.

.3Contactors:Section16423.

.4Overcurrent Protective Devices:Section16443.

1.2SOURCE OF SUPPLY

.1All branch circuit panelboards shall be by a single manufacturer.

1.3REFERENCE DOCUMENTS

.1CSAC22.2No29-M1989, Panelboards and Enclosed Panelboard.

1.4PRODUCT DATA

.1Comply with requirements of Section 16010.

.2Provide manufacturer's product data for all components.

.3Provide data on manufacturer's recommended environmental conditions for equipment affected by temperature.

2.Products

2.1PANELBOARDS

.1Panelboards:to CSAC22.2No29-M1989 and as follows:

.1Bus Characteristics:

.1Construction:rectangular section [copper] [aluminum] [silver] [tin] plated joints.

.2Bracing:[10,000] [] Amperes symmetrical.

.3Neutral:full capacity, solid neutral design.

.4Ground bus:copper

.2Enclosure:

.1Flush mounted:galvanized sheet steel.

.2Surface mounted:prefinished, painted sheet steel.

.3[Drip cover.]

SPECNOTE:Specify drip cover only when branch circuit panelboards are surface mounted and exposed to sprinkler discharge.

.3Trim:

.1[Door-On-Door Construction] [Screw-on], concealed hinges and mounting screws, hinged locking door and flush catch, [2] [] keys per panel.

.4Overcurrent Protective Devices:[bolt-in] [plug-in] breakers as specified in Section 16443.

2.2PANELBOARDS WITH ISOLATED GROUND BUS

.1Panelboards with Isolated Ground Bus:as specified under "Panelboards" with the following additional features:

.1Isolated Ground Bus:copper, isolated in total from panel neutral and enclosure, complete with lugs to accept No. [3] [] main ground and [20] [] No. [10] [12] branch ground conductors.

2.3PANELBOARDS WITH CONTACTOR IN MAINS

.1Panelboards with Contactors in Mains:as specified under "Panelboards" with the following additional features:

.1Contactor:as specified in Section 16423.

.2Enclosure:Custom built EEMAC 1 with the following:

.1Separate compartment for panelboard.

.2Separate compartment for contactor.

.3Barriered wireway on each side.

.4Common trim with [one] [two] hinged locking doors, [one over breaker section] [and one over contactor section].

.3Pilot light(s):[red] [green] [incandescent] [neon] type, [120] [] volt, mounted in contactor enclosure door, illuminated when contactor is energized.

.4Control switch:heavy duty oil tight type with operating feature:

.1[Hand-Off-Automatic.]

.2[Momentary contact.]

.3[Maintained contact.]

.4[Key operated.]

.5[Spring return to centre.]

.6[].

SPECNOTE:Select operating feature applicable to each contactor installed.

2.4LOADCENTRE PANELBOARDS

.1Panelboards:to CSAC22.2No29-M1989 and as follows:

.1Bus Characteristics:

.1Construction:rectangular section [copper] [aluminum] [silver] [tin] plated joints.

.2Bracing:[10,000] [] Amperes symmetrical.

.3Neutral:full capacity, solid neutral design.

.4Ground bus:copper

.2Enclosure:

.1Flush mounted:galvanized sheet steel.

.2Surface mounted:prefinished, painted sheet steel.

.3[Drip cover.]

SPECNOTE:Specify drip cover only when branch circuit panelboards are surface mounted and exposed to weather.

.3Trim:

.1Screw-on, concealed hinges and mounting screws, hinged locking door and flush catch.

.2Keys:[2] [] per panel.

.4Overcurrent Protective Devices:plug-in breakers as specified in Section 16443.

2.5PANELBOARDS FOR SERVICE ENTRANCE

.1Panelboards for Service Entrance:as specified under "Panelboards" with the following additional features:

.1Main Breaker:as specified in Section 16443, mounted in separate barriered compartment, CSA approved for service entrance application.

2.6LOADCENTRE PANELBOARDS FOR SERVICE ENTRANCE

.1Loadcentre Panelboards for Service Entrance:as specified under "Loadcentre Panelboards" with the following additional features:

.1Main Breaker:as specified in Section 16443, mounted in separate barriered compartment, CSA approved for service entrance application.

3.Execution

3.1INSTALLATION

.1Install panelboards securely, plumb and square to adjoining surfaces.

.2Install panelboards flush or surface as indicated.

.3Mount panelboards at [1800] [] mm to top of trim.

.4Connect loads to circuits as indicated.

.5Number of breakers, and sizes specified in Schedules.

.6Install two spare 20mm conduits stubbed up into ceiling space for flush panelboards only.

3.2SCHEDULES

SPECNOTE:Incorporate Branch Circuit Panelboard Schedules as part of this Section. Alternatively, Schedules may be incorporated on Drawings.

SPECNOTE:Number Branch Circuit Panelboard Schedules sequentially starting with the highest voltage in system and working down. Refer to Data Sheets for sample schedules.

Branch Circuit Panel[] - Individual Circuits

[42] Circuits [120/208] Volts, [3] Phase, [4] Wire,

Enclosure:[surface]Bus:[225]A.

Load / Breaker / Poles / Trip / Feeder / Notes
[] / [] / [] / [] / [] / []

Branch Circuit Panel[] - Individual Circuits

[42] Circuits [120/208] Volts, [3] Phase, [4] Wire,

Enclosure:[surface], Bus:[225]A.

Load / Breaker / Poles / Trip / Feeder / Notes
[] / [] / [] / [] / [] / []

SPECNOTE:Use the following schedule format when individual circuits are identified on drawings. Number panelboard schedules commencing with the highest voltage.

Branch Circuit Panelboards - Summary

[347/600]Volts, [3]Phase, [4]Wire

Panel / Circuits / Bus / Enclosure / Brkrs / Poles / Trip / Notes
[] / [] / [] / [ ] / [ ] / [ ] / [ ] / [ ]

END OF SECTION