A ground detection device is not required for the ungrounded secondary circuit of a supply transformer for a single downhole submersible oil pump.
| (1) |
Flexible cord or portable power cable shall be permitted at drilling and servicing sites or oil and gas wells provided the flexible cord or portable power cable: |
|
(a) |
is suitable for exposure to oil and wet locations; |
|
(b) |
is supported, protected or located in a manner that prevents mechanical damage; and |
|
(c) |
otherwise complies with the requirements of CEC rules J18-120(a),(b),(c) and J18?172(a),(b),(c) for Class I locations. |
| (2) |
A lockable switch in the control circuit of the motor contactor for DC traction motors on drilling and servicing rigs may be used for the disconnecting means required by Section 28 of the CEC where the switch is located at the motor contactor. |
| (3) |
Lighting fixtures and portable equipment shall be supported independently of the cord and protected from mechanical injury by guards or equivalent means. |
| (4) |
A combination motor controller shall be permitted to be used as service equipment for a single oil well pump. |
