Extract from Notice R2920 (Government Gazette October 1994)
| VISUAL INSPECTION |
SATISFACTORY |
| Do all the components of the installation conform to the applicable standards or have they been authorised? | |||
| Have all the components been correctly selected, installed and suitably rated? | |||
| Have any components visible damage? | |||
| Have fire barriers been erected or have other precautions been taken against the spread of fire or the harmful effects of heat? | |||
| Are the conductors of the correct current carrying capacity? | |||
| Are the protective devices of the correct size and capable of withstanding the prospective fault level? | |||
| Are disconnecting devices to electrical equipment correctly located? | |||
| Are different circuits separated electrically? | |||
| Are the connections of all the conductors, including earthing and bonding, mechanically sound and electrically continuous? | |||
| Have circuits, fuses, switches, terminals, earth leakage devices, circuit breakers, etc been permanently marked or labeled? | |||
| Have the loads been evenly distributed across the three phases in a 3-phase system? | |||
| Does the installation comply with the requirements of the Machinery and Occupational Safety Act, 1983 and SABS 0142 code? |
| TEST CARRIED OUT AND INSTRUMENT USED |
VALUE (i.e. reading) |
| Continuity and resistance of earth conductor including all bonding conductors. Instrument used ………………………… |
|
| Continuity of ring circuit. Instrument used ………………………… |
|
| Earth electrode resistance. Instrument used ………………………… |
|
| Insulation resistance. Instrument used ………………………… |
|
| Polarity. Instrument used ………………………… |
|
| Earth loop impedance test. Instrument used ………………………… |
|
| On load current readings on the 3 phases, red, white, blue. Instrument used ………………………… |
R…………….. W……………. B…………….. |
| Phase to phase neutral voltage reading on the longest circuits from the distribution board. Instrument used ………………………… |
|
| Operation of the earth-leakage protection devices and circuit-breakers. Instrument used ………………………… |