W 8
[Subsidiary]
Use of single-pole switches with one conductor earthed.
Means of isolating voltage in special circumstances.
Starting and stopping of electric motors.
Connexion and earthing of portable apparatus exceeding extra low voltage.
Construction of switchboards.
71
1.7 CAP. 59] Factories and Industrial Undertakings [1982 Ed. (Electricity) Regulations
11. In a system where one of the conductors is connected to earth, no single-pole switch shall be placed in that conductor or any branch thereof, other than a link for testing purposes or a switch for use in controlling a generator.
12. (1) Subject to paragraph (2), such efficient means, suitably located, shall be provided for cutting off and isolating all voltage from every motor, converter and transformer forming part of a system and all apparatus used in or in connexion therewith.
(2) It shall not be necessary to comply with paragraph (1) in the case of a conductor in a system if that conductor is earthed.
13. (1) Every electric motor shall be controlled by an effective switch or switches for starting and stopping, and the switch or switches shall be so placed as to be readily accessible to and easily operated by the person in charge of the motor.
(2) Where a machine is used and driven by an electric motor, such efficient means, suitably located, shall be provided for either stopping the machine or switching off the electric motor as may be necessary to prevent electrical hazard or other danger.
(3) Every electric motor shall be equipped with such efficient means so that when stoppage occurs by reason of a fluctuation in voltage or failure in supply of electricity the motor will not restart automatically in circumstances whereby unexpected restarting is likely to cause electrical hazard or other danger.
14. Portable apparatus operating at a voltage exceeding extra low voltage shall-
(a) have all its flexible wires connected to the system either by effective permanent joints or by properly constructed connectors;
(b) be protected against leakage to earth of current liable to cause electrical hazard;
(c) be controlled by efficient means suitably located so as to permit ready operation for cutting off all voltage.
PART IV
SWITCHBOARDS AND SWITCHBOARD APPARATUS
15. Every switchboard shall be constructed and installed so that so far as reasonably practicable-
(a) adequate access can be obtained to any component part which may have to be adjusted or handled;
(b) the location, course and continuity of every conductor may where necessary be readily identified and traced;
W 8
[Subsidiary]
Use of single-pole
switches with one conductor
earthed.
Means of
isolating voltage in special circumstances.
Starting and stopping of electric motors.
Connexion and earthing of
portable
apparatus
exceeding extra
low voltage.
Construction of switchboards.
71
1.7\
CAP. 59] Factories and Industrial Undertakings [1982 Ed. (Electricity) Regulations
11. In a system where one of the conductors is connected to earth, no single-pole switch shall be placed in that conductor or any branch thereof, other than a link for testing purposes or a switch for use in controlling a generator.
12. (1) Subject to paragraph (2), such efficient means, suitably located, shall be provided for cutting off and isolating all voltage from every motor, converter and transformer forming part of a system and all apparatus used in or in connexion therewith.
(2) It shall not be necessary to comply with paragraph (1) in the case of a conductor in a system if that conductor is earthed.
13. (1) Every electric motor shall be controlled by an effective switch or switches for starting and stopping, and the switch or switches shall be so placed as to be readily accessible to and easily operated by the person in charge of the motor.
(2) Where a machine is used and driven by an electric motor, such efficient means, suitably located, shall be provided for either stopping the machine or switching off the electric motor as may be necessary to prevent electrical hazard or other danger.
(3) Every electric motor shall be equipped with such efficient means so that when stoppage occurs by reason of a fluctuation in voltage or failure in supply of electricity the motor will not restart automatically in circumstances whereby unexpected restarting is likely to cause electrical hazard or other danger.
14. Portable apparatus operating at a voltage exceeding extra low voltage shall-
(a) have all its flexible wires connected to the system either by effective permanent joints or by properly constructed connectors;
(b)
be protected against leakage to earth of current liable to cause electrical hazard;
(c) be controlled by efficient means suitably located so as to
permit ready operation for cutting off all voltage.
PART IV
SWITCHBOARDS AND SWITCHBOARD APPARATUS
15. Every switchboard shall be constructed and installed so that so far as reasonably practicable-
(a) adequate access can be obtained to any component part
which may have to be adjusted or handled;
(b) the location, course and continuity of every conductor may
where necessary be readily identified and traced;
1
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