ELECTRO FEDERATION CANADA ONTARIO REGION · Ampacity of circuit conductors

ELECTROFEDERATION CANADA ONTARIO REGION

Tim Pope March 20, 2015

What’s new in the 2015 Code?

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Plenty!


Definition of “Approved”

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Approved (as applied to electrical equipment) — (1) equipment that has been certified by a certification organization accredited by the Standards Council of Canada in accordance with the requirements of

(a) CSA Group Standards; or (b) other standards that have been developed by a standards development organization accredited by the Standards Council of Canada....


Warning and caution markings

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“...shall be written in the language(s) mandated by the local authorities adopting and enforcing this Code.”


Conductors and Cables

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• Simplified underground ampacities (“D” Tables)

• New flexible cord types; ampacities for odd AWG sizes

• Clarified conductor termination temperature requirements

• New options for voltage drop: • easy to use look-up table for residential • flexibility for industrial

• Easier residential service conductor selection


Conductors and Cables

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• Medium voltage cable ampacities (5kV – 46kV)

• CSA Standards C68.5 and C68.10


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Load calculations – Flexibility – Demonstrated loads


Bonding & Grounding

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• Alternate material for grounding conductors

• Table 16 – bonding conductor size selection:

• Ampacity of circuit conductors

• Rating of the overcurrent device

• AWG size of the circuit conductors


Conduit fill calculations

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• More flexibility

• Differences in raceway dimensions

• New conductor types

• More Tables


Section 18 Hazardous Locations

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• The Code has no Class! .......(actually, it does)

• Explosive dust atmospheres: Zones 20, 21, 22

• New types of protection (“ic”, “px”, “py”, etc.)

• Equipment Protection Levels (Ga, Gb, Da, etc.)

• “Class” equipment still recognized for use in Zone classified areas

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Section 18 CI, Z0, Z1, Z2 CII, D1, D2 CIII, D1, D2

Appendix J CI, D1, D2

Section 18 Z0, Z1, Z2 Z20, Z21, Z22

Appendix J CI, D1, D2 CII, D1, D2 CIII, D1, D2


Clarification on Isolated ground receptacles, basic care areas

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Wiring methods &

Equipment

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Split straight conduit

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Rigid RTRC conduit Type XW • fiberglass • exposed • concealed • hazardous locations • CSA C22.2 No. 2515.1

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Image courtesy: Leviton

Receptacles exposed to the weather


• Self-protected Combination Motor Controllers • Branch circuit overcurrent protection

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Images courtesy: EATON


Rooftop HVAC units • Application of across-the-line motor starter marked

suitable for motor disconnect • Caution re: roof penetration by raceway

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Must be specifically “approved” for type of floor

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Images courtesy: Thomas & Betts


“Approved” protector plates and bushings required

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Cable ties CAN/CSA-C22.2 No. 62275 Six types: 1, 11, 2, 21, 2S, and 21S.

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Image courtesy: Thomas & Betts


100 200 400 320 Amp meter sockets

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• Increased loads such as electric vehicles

• Line side of service box

• Bypass • C22.2 No. 115


Arc Fault Circuit Interrupters • Required in more areas • Recognition of “combination”

and “outlet branch circuit” types

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Images courtesy: EATON and Leviton


Electric Heat • Complete section re-write • Pipeline impedance heating • Skin effect heating • Class I Extra-low voltage

heating systems

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Section 64 Renewable energy systems

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Section 50 Section 64Section 64Section 50

Solar h l i

Section 64

Renewable

Section 64

Renewablephotovoltaic systems

energy systems

Renewable energysystemssystems

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•Increased voltage limits for PV systems

• 600 VDC residential

• 1000 VDC exempt from Section 36


Polarity identification – C22.2 No. 271

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“POSITIVE”

“NEGATIVE”

+ –


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Why polarity identification?


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PV Rapid shutdown

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PV systems on buildings or structures Within 10 s of initiation: • limit voltage to not more than 30 V • limit output to not more than 240 V•A


Use of approved connectors for bonding.

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Arc flash warning labels for wind turbines.

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C22.2 No. 272


Electric shock drowning

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Single pin cable installations on temporary movie sets, midways, etc.

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• Voltage-driven (parallel)

• LED

• Terminology


• Terminology updated

• Electric Vehicle connector “power + information”

• “Plug in” Hybrid EV

• Simultaneous connection with “load shedding”

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Get involved / stay in touch

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https://community.csagroup.org

News Updates

Calls for participation

Dialogue with other experts

Committee workspaces

https://community.csagroup.org/

Get involved / stay in touch

Become a member https://community.csagroup.org

Learning Institute www.shop.csa.ca

Propose a change www.csagroup.org/cecodechanges

Public review http://publicreview.csa.ca

[email protected]

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https://community.csagroup.org/

http://www.shop.csa.ca/

http://www.csagroup.org/cecodechanges

http://publicreview.csa.ca/

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ELECTRO FEDERATION CANADA ONTARIO REGION · Ampacity of circuit conductors