Electrical

Categories: Electrical
Origin: CSA
Close date: Apr 23, 2021
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1.1 This standard applies to:

a) Automatic transfer switches;
b) Manual or non-automatic transfer switches;
c) Closed transition transfer switches;
d) Hybrid transfer switches;
e) Transfer switches for fire pumps;
f) Bypass/isolating switches;
g) Softload transfer switches;
h) Transfer switches intended for use as service equipment; and
i) In Mexico and the United States, branch circuit emergency lighting transfer switches (BCELTS). In Canada, this requirement does not apply that have a maximum rating of 1000 volts for use in non-hazardous locations, in accordance with Annex A1, Item 1.

1.2 This standard specifically does not apply to:

a) Double-throw switches for use in optional standby systems;
b) Switches used in equipment manufactured in accordance with Annex A1, Item 9;
c) In Canada, manually operated generator transfer panels in accordance with Annex A1, Item 12. In Mexico, this requirement does not apply.
d) Transfer switches rated over 1000 V; and
e) Solid-state (static) transfer equipment.

1.3 These requirements apply to transfer switches and their associated control devices including voltage sensing relays, frequency sensing relays, time-delay relays, and the like.

1.4 These requirements apply to completely enclosed transfer switches and to open types intended for mounting in other equipment such as switchboards.

1.5 These requirements apply to bypass/isolation switches used to manually select an available power source to feed load circuits and to provide for total isolation of an automatic transfer switch. These switches may be completely enclosed, enclosed with the transfer switch, or of the open type intended for mounting in other equipment. Refer to Annex D.

1.6 In Canada, automatic transfer switches built to the optional standby requirements of this standard are not permitted. In Mexico and the United States, this requirement does not apply.

1.7 These requirements cover enclosed inlets intended to facilitate connection of portable generators to transfer equipment.

Categories: Electrical
Origin: CSA
Close date: May 1, 2021
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This clause of Part 1 is replaced by the following. 

This part of IEC 60335 deals with the safety of electric fence energizers, the rated voltage  of which is not more than 250 V and by means of which fence wires in agricultural, domestic or feral animal control fences and security fences may be electrified or monitored. 

NOTE 101 Examples of electric fence energizers coming within the scope of this standard are: 
– mains-operated energizers; 
– battery-operated electric fence energizers suitable for connection to the mains, as shown in Figure 101 and Figure 102; 
– electric fence energizers operated by non-rechargeable batteries either incorporated or separate. 

This standard does not in general take into account 
– the use of appliances by young children or infirm persons without supervision; 
– the playing with appliances by young children. 

NOTE 102 Attention is drawn to the fact that 
– for appliances intended to be used on board ships or aircraft, additional requirements can be necessary; 
– in many countries, additional requirements are specified by the national health authorities, the national authorities responsible for the protection of labour, the national water supply authorities and similar authorities. 

NOTE 103 This standard does not apply to 
– electromagnetically coupled animal trainer collars; 
– appliances intended to be used in locations where special conditions prevail, such as the presence of a corrosive or explosive atmosphere (dust, vapour or gas); 
– separate battery chargers (IEC 60335-2-29); 
– electric fishing machines (IEC 60335-2-86); 
– electric animal-stunning equipment (IEC 60335-2-87); 
– appliances for medical purposes (IEC 60601). 

Categories: Electrical
Origin: CSA
Close date: May 1, 2021
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1.1
This Standard specifies requirements for copper and aluminum conductor secondary and service- entrance cables intended for use on systems having a nominal voltage of 600 V or less in underground installation 
a) by direct burial; or 
b) in duct systems. 

This Standard also applies to multiple-conductor cable assemblies. 

The products specified in this Standard are designed to be installed in accordance with the rules of the Canadian Electrical Code, Part I. 

Note: Portions of the cable covered by this Standard will be exposed to sunlight on terminal poles and during storage. 

1.2
This Standard applies to cable with 
a) a maximum allowable conductor temperature of 
i) 75 °C; or 
ii) 90 °C; and
b) cold impact and cold bend ratings of –40 °C. 

1.3
In this Standard, "shall" is used to express a requirement, i.e., a provision that the user is obliged to satisfy in order to comply with the standard; "should" is used to express a recommendation or that which is advised but not required; and "may" is used to express an option or that which is permissible within the limits of the Standard. 

Notes accompanying clauses do not include requirements or alternative requirements; the purpose of a note accompanying a clause is to separate from the text explanatory or informative material. 

Notes to tables and figures are considered part of the table or figure and may be written as requirements. 

Annexes are designated normative (mandatory) or informative (non-mandatory) to define their application.