Canadian Electrical Industry News Week

CSA Code bookMay 7, 2017

By William (Bill) Burr

In this article: Section 44 — Theatre Installations. The CE Code is a comprehensive document. Sometimes it can seem quite daunting to quickly find the information you need. This series of articles provides a guide to help users find their way through this critical document. This is not intended to replace the notes in Appendix B or the explanations of individual requirements contained in the CEC Handbook, but will hopefully provide some help in navigating the code.

Rule 44-000 Scope states that Section 44 is a supplementary or amendatory section of the code and applies to electrical equipment and installations in buildings or parts thereof that are used for dramatic, operatic, motion picture or other shows. It should be noted that, because of rapid advances in the theatre industry, some rules in this section may refer to electrical equipment that may be obsolete. The CEC Handbook provides additional notes and diagrams to better explain this section.

The section is divided into five parts:

• General rules, which applies to all theatre installations
• Fixed stage switchboards
• Portable switchboards on stage
• Fixed stage equipment
• Portable stage equipment

General

Rule 44-100 Travelling shows requires that a permit must be obtained before any electrical equipment is used for the initial performance of a travelling theatre company, circus, or other type of travelling show, even if held in a theatre. This ensures that a qualified person oversees the installation.

Rule 44-102 Wiring method requires that all wiring, in the stage, stage wing areas, orchestra pits and projection booths must be in rigid metal conduit, electrical metallic tubing, mineral-insulated cable, flexible metal conduit, armoured cable, lead-sheathed armoured cable, aluminum-sheathed cable, or copper-sheathed cable. Note that surface raceways are not permitted on the stage side of the proscenium wall. Flexible cord or cable is permitted in accordance with rules 44-252, 44-320, 44-350, and 44-354 of this section and other wiring must be in accordance with Section 12 or Section 76. The proscenium is the frame separating the stage from the audience.

Rule 44-104 limits the number of border, stage pocket, or remote control circuit conductors to the requirements of rule 12-910. In addition, the fill of conductors is limited to 20% of the cross-sectional area of auxiliary gutters or metal wireways.

Rule 44-106 permits aisle light circuits to supply up to 30 - 25 watt lights.

Fixed stage switchboards

Rules 44-200 and 44-202 require fixed stage switchboards to

• be dead front
• have mechanical protection above the switchboard covering the full length as well as the space between the board and the wall behind
• have exposed live parts on the back of the board enclosed by the walls of the building, by wire mesh grilles, or by other acceptable methods
• have a self-closing door at the entrance of the enclosure

Rule 44-204 specifies that only externally operated enclosed switches shall be used.

Rule 44-206 requires that a pilot lamp

• protected by a 15 amp or less overcurrent device
• connected ahead of any master switch

be included in every switchboard enclosure that is connected to the circuit supplying the switchboard.

Rule 44-208 specifies that the fuse(s) for switchboards can be either plug or cartridge type but must be provided with an additional separate enclosure.

Rule 44-210 requires that an overcurrent device be connected in the ungrounded conductor of each circuit leaving the switchboard. Notwithstanding Rule 30-104, a 120-volt luminaire may be protected by an overcurrent device rated up to 100 A.

Rule 44-212 governs the installation of lighting dimmers and requires that

• they must be completely disconnected from the supply when they are in the open position
• resistance type dimmers that do not open the circuit may be connected in a grounded neutral conductor
• all current-carrying parts of dimmers must be enclosed to prevent accidental contact

Rule 44-214 requires that stage and gallery pockets, which are receptacles in the performance space used to power stage lighting, be controlled from the switchboard.

Rule 44-216 provides that, due to the high heat and vibration that may be associated with switchboards, some additional requirements that conductors must have are

• insulation suitable for the temperatures involved and not less than 125°C
• an ampacity concurrent with the switch or overcurrent device to which they are connected
• bushed holes where they pass through a metal enclosure
• wire strands soldered together fastening under a clamp or binding screw
• soldered into a lug or connected to a solderless lug, where the conductor is No.8 AWG or larger
Portable switchboards on stage

Rule 44-250 provides that portable switchboards must be constructed in substantial enclosures, which may be open during operation, if there are no exposed live parts except on dimmer faceplates.

Rule 44-252 requires that portable switchboards be supplied from an externally operated, enclosed, fused master switch within the switchboard that

• is supplied by a flexible cord or cable, type S, SO, or ST, that has sufficient ampacity to carry the total load current of the switchboard
• arranged to cut off current from all apparatus within the enclosure, except the pilot light
• has an ampere-rating of the fuses not greater than the total load current of the switchboard

Fixed stage equipment

Rule 44-300 specifies that footlights be installed in individual outlet boxes, where wired in rigid metal conduit or EMT, or in a metal trough to ensure bonding continuity.

Rule 44-302 provides minimum thickness of not less than

• 0.78 mm thick for metal work for footlights, borders, proscenium sidelights, and strips
• 0.53 mm thick for metal work of bunches and portable strips

Rule 44-304 requires that terminals of lampholders have a clearance of a minimum of 13mm from the metal trough.
Rule 44-306 calls for suitable guards to protect borders, proscenium sidelights and strips from mechanical damage and accidental contact with combustible material.
Rule 44-308 specifies that suspended luminaires in borders and strips must be electrically and mechanically safe.
Rule 44-310 — because of possible severe vibration, conductor terminations at lampholders need to have a positive and reliable connection by soldering or suitable solderless connections.
Rule 44-312 identifies that mogul lampholders need to be double walled with adequate ventilation between the walls.
Rule 44-314 requires that conductors supplying field assembled foot, border, proscenium, and portable strip luminaires must have insulation rating suitable for the high operating temperatures involved and not less than 125 °C.
Rule 44-316 reiterates that branch circuit overcurrent protection for footlights, border lights, and proscenium sidelights must be consistent with Rule 30-104.
Rule 44-318 states that pendant lights containing lamps with more than 100-watt capacity need to be provided with a minimum 13mm mesh guard to contain and prevent falling glass.
Rule 44-320 specifies that flexible cord or cable supplying border lights must be

• S, SO, or ST type
• fed from points on the grid iron or from other acceptable overhead points, but not from side walls
• arranged so that clamps and binding screws are free from strain
• provided with a metal bushing where passing through a metal or wooden enclosure
• located to permit convenient access to terminals or binding posts inside the switchboard enclosure

Rule 44-322 addresses the flexibility of wiring for arc pockets, which are receptacles that supply carbon-arc lighting fixtures.
Rule 44-324 states that at least one receptacle installed in gallery pockets be rated not less than 30 amps for use by higher capacity lighting equipment.
Rule 44-326 specifies that arc and incandescent receptacles cannot be interchangeable, and receptacles and plugs intended for the connection of

• arc lamps must be rated not less than 35 A and be supplied by a minimum No. 6 AWG copper conductor
• incandescent lamps be rated not less than 15 A and be supplied by a minimum No.12 AWG copper or No. 10 AWG aluminum conductor

Rule 44-328 requires that curtain motors must be the enclosed type.
Rule 44-330 governs the control and operation of flue dampers, which are located above the stage to allow smoke to exit in case of fire. Where stage flue dampers are released by an electrical device, it must be

• held in the closed position and automatically released on power interruption
• controlled by at least two single-pole switches enclosed in self-closing but unlocked or latched metal boxes, one located at the electrician’s station, and the other as per rule 28-604
• rated for full circuit voltage, with minimal circuit resistance, and located in a protective metal box in the loft above the scenery

Portable stage equipment

Rule 44-350 requires that electrical fixtures attached to scenery must be securely fastened and supplied with flexible cord or cable suitable for hard usage, and selected in accordance with Rules 4-012 and 4-040. In addition, bushings must be used where stems of fixtures extend through the scenery.
Rule 44-352 directs where festooned lighting is used that the joints be staggered and that guards or shades be used to prevent contact with combustible material.
Rule 44-354 states that supply conductors for arc lamps, bunches, or other portable equipment must be approved for extra-hard usage. Other miscellaneous portable equipment may be other than extra-hard usage. The supply conductors must all selected as per rules 4-012 and 4-040.
Rule 44-356 requires that special stage effects portable equipment must be acceptable to the local AHJ and located to prevent flames, sparks or hot particles from contacting combustible material.
In the next installment, we will discuss Section 46 — Emergency Power Supply, Unit Equipment, Exit Signs, and Life Safety Systems.

* The source for this series of articles is the Canadian Electrical Code, Part I, published by CSA

** Note the CEC Handbook is also published by CSA.

William (Bill) Burr is the former Chair of the Canadian Advisory Council on Electrical Safety (CACES), former Director of Electrical and Elevator Safety for the Province of BC, and former Director of Electrical and Gas Standards Development and former Director of Conformity Assessment at CSA Group. Bill can be reached at Burr and Associates Consulting billburr@gmail.com.

 

 

 SteriGuard Antimicrobial Plugs and Wiring Devices 

Legrand Video Week 3When it comes to reliable antimicrobial protection, SteriGuard wiring devices go all in -- storing antimicrobial growth inhibitors directly inside the products themselves. The additives are then gradually released to the surface, providing continuous, long-lasting protection against the growth of bacteria, molds, mildew, and fungi.

 

 

 

 



Watch the video HERE.

 

Changing Scene

  • Prev
Jacques Fiset, the new president of the EFC Quebec section, told us in a recent interview that his ...
Organised by the Hong Kong Trade Development Council (HKTDC), the twin lighting shows - the  ...
A Friday night, the end of summer, the weather is mild, and 2,500 people — customers, ...
Eaton focuses on developing personable connections in every aspect. In September, our team will be ...
During the recently held IMARK Canada 2019 meeting in Niagara Falls, executives from 14 of the ...
Valard has been selected by Wataynikaneyap Power LPto provide engineering, procurement ...
The Canadian Apprenticeship Forum-Forum Canadien sur l’Apprentissage (CAF-FCA) has announced ...
Electricity Human Resources Canada has announced this year's keynote speakers for Agents of Change ...
Kiashke Zaaging Anishinaabek (KZA)/Gull Bay First Nation (GBFN) and Ontario Power Generation (OPG) ...
The BCEA's Woman's Network THRIVE Summit is taking place on October 4th at the Executive Inn ...

OmnicableOmniCable, headquartered in West Chester, PA, is inviting all electrical distributors located in the Ontario area to its open house event on Wednesday, October 23, 2019, from 10 am – 7 pm.

OmniCable opened its Toronto branch back in April 2019. Toronto is OmniCable’s first branch outside of the United States. The Toronto facility, which is approximately 50,000 square feet, is OmniCable’s 13th branch and services electrical distributors throughout Canada.

 

Read More

 

 

 

Grid Analytics MarketAs data becomes central to new business models in the energy utility sector, the global grid analyticsmarket is expected to accelerate from $1.15 billion in 2018 to $2.31 billion in 2025, at a compound annual growth rate (CAGR) of 10.4%. Energy utilities are generating massive volumes of data from smart meters, intelligent energy devices, and multi-sensing units but only 2% to 4% of data from the system is actually leveraged for analytics. This data, combined with a sophisticated analytics platform, can deliver valuable insights for utilities that can lead to improved customer service and operational metrics.

 

 

Read More

 

 

Codes and Regulations Brought to You by the CSA Group

  • Prev
The Code is a comprehensive document. Sometimes it can seem quite daunting to quickly find the ...
The Code is a comprehensive document. Sometimes it can seem quite daunting to quickly find the ...
In this article: Tables — Part B. This section of the Code contains 99 tables of essential ...
In this article: Section 58 — Passenger Ropeways and Similar Equipment. Rule 58-000 ...
  Unauthorized CSA Group certification marks have been found on wiring by Triumph Cable ...
In this article: Section 52 — Diagnostic imaging installations. The CE code is a ...
In this article: Section 46 — Emergency Power Supply, Unit Equipment, Exit Signs, and ...
  In this article: Section 44 — Theatre Installations. The CE Code is a ...
CSA has published C22.2 No. 60947-7-3, the harmonized standard for low-voltage switchgear and ...
  Electric welders. The CE Code is a comprehensive document. Sometimes it can seem ...

Latest Articles

  • Prev
Pick up a newspaper or scan your preferred electronic newsfeed and you’ll likely see a series ...
Britech Corp, one of Canada’s largest heating cable companies has signed a formal agreement ...
Electrical enclosures serve to protect electrical devices from adverse environmental influences, ...

 

Flir Application SpotlightWithout power, factory operations cannot continue. That’s why regular scheduled maintenance is important to ensure your electrical distribution system is in working order. A combination of a thermal imager and a clamp meter can help you detect hot spots and diagnose electrical issues at the point of failure before an outage occurs, quickly and safely.  Download the Application Spotlight today.

 

 

 

 

 

Read More  

 

3M WebinarRegister for 3M Canada’s upcoming webinar: How TTS™ Heat Trace Cables can help you on site.

3M Canada will be hosting a heat trace cables webinar, where you’ll learn about heat trace, heat trace applications (i.e.: pipe freeze protection, roof and gutter, and surface snow and ice melting), and the benefits of self-regulating heat trace cables—TTS™ Heat Trace Cables.

Self-regulating heat trace cables can adjust their output to the surrounding temperature down the cable length.

Read More

 

 

Tools for the Trade

  • Prev
  IDEAL Industries has introduced Combination Drill Taps to its tool lineup. Combining the ...
  Stripping and crimping device, 100 - 240 V input voltage, for insulated ferrules with a ...
Professional all-in-one cutter/stripper for coaxial and twisted pair cables     ...
  Klein Tools' Coax Explorrer 2 tests coaxial cable and maps up to 4 locations   ...
  Ideal Industries' T-14 wire stripper s are ideal for all professionals working within the ...
  The ATS850 conveyor eliminates all types of electro static discharge requirements. ...
  Lorik Tool & Automation has the experience and ability to manufacture a variety of ...
  Ideal Industries' 26 piece insulated Journeyman kit is ideal for new electricians or for ...
  Klein Tools Deluxe Fish Rod Set comes in 19 pieces that when assembled can fish wire and ...
  BendWorks Software was designed to help electrical contractors adopt this new process ...

Flir CM94FLIR Systems have announced the release of their new FLIR CM94 2000-amp AC/DC electrical utility clamp meter. Designed to tackle high current electrical measurements in demanding utility and industrial job sites, the CM94 features an oversized jaw to easily manage larger conductors and busbars. With CAT IV-1000-volt overvoltage protection, the CM94 works on relays, distribution panels, vaults, switchgears and switchboards, as well as on service conductors, feeders, and production power lines.

 

 

 

Read More

 

Product News

  • Prev
Lind Equipment has released their new Battery-Operated Hornet Light.      
The BAY LED round bay light is a solid-state solution offering one-for-one replacement of ...
As solar becomes a mainstream source of electricity, we must meet the increasing demand for solar ...
Beacon Products is primed to improve the parking garage experience for visitors, facility ...
With a simple rotation of its front bezel, the new Juno® R620L 15-watt LED trac fixture enables ...
The ALK-L series delivers exceptional performance in a slim modern design. With an assortment of ...
AutomationDirect now offers continuous flexing control cables and continuous flexing Profibus-DP ...
Bridgeport Fitting’s new E-Z LOCK connectors offer contractors superior installation speed in ...
  Omnitron Systems recently introduced the addition of high-power Power over Ethernet ...
Klein Tools for professionals since 1857, introduces the Forged Wire Crimper with ...

 

Beghelli PluraluceThe Pluraluce is a revolutionary concept in emergency lighting. The minimalist design is the perfect embodiment of simplicity and style without sacrificing performance. These 10W LED emergency fixtures deliver between 782lm - 919lm. Each Pluraluce comes with the choice of 3 lenses, which are interchangeable. The lenses provide a unique distribution pattern, changing the coverage of the illuminated area of egress.

 

 

 

 

Read More

 

 

Peers & Profiles

  • Prev
An electrician by trade, Daniel Lacovetsky is the founder and President of Powertec Electric, an ...
Mike Morneau began his professional career in graphic arts after earning a Bachelor of Technology ...
AimLite offers a vast choice of lighting lines to facilitate any lighting project’s needs. ...
John Krill has been in the energy and construction industries for 35-years, now he serves as Canem ...
Ali Heighton is the Program Coordinator for IBEW Local 37 who has found success as a young ...
Flextherm was founded in 1991 by current company President, Philippe Charron. For more than 25 ...
Ouellet Electric Heating began humbly in 1960 with Charles-Emile Ouellet, who started manufacturing ...
Justin Harris is a Programmer/Electrician for COREngineering, a New Brunswick based mechanical ...
Bill Maki is an Electrical Engineer from Thunder Bay, Ontario working as a Control Systems ...
Benedict Electrical Contracting Limited is a locally owned and operated family business in Owen ...

Copper $US Dollar price per pound

Electrical Industry Newsweek

This special weekly newsletter has the broadest reach of those that are involved in all aspects of the electrical industry including electrical construction and maintenance professionals and electrical specifying engineers across Canada. EIN is designed to provide electrical professionals’ insight and intelligence on those developments in the industry that effect design, specification, installation of electrical equipment. From corporate news to new technologies and insightful opinions EIN will become your first read in the electrical industry in Canada. Published weekly – every Tuesday
Kerrwil Publications

538 Elizabeth Street, Midland,Ontario, Canada L4R2A3 +1 705 527 7666
©2019 All rights reserved

Use of this Site constitutes acceptance of our Privacy Policy (effective 1.1.2016)
The material on this site may not be reproduced, distributed, transmitted, cached or otherwise used, except with the prior written permission of Kerrwil