
TEM
A07EXXXX – 1 Unit Transmitters
Page 10
3.5 Procedure for establish the absence of voltage
Follow these simple steps for establish the absence of voltage:
Before starting work on the equipment, it shall be isolated from the mains supply.
This disconnection shall always be checked by visual inspection.
Further precautions shall be taken to ensure that the mains supply cannot be restored whilst work is being carried
out.
After the mains supply has been disconnected, all other lines such as control, interlocking and modulation lines
shall be disconnected if they carry dangerous voltages.
Moreover, the antenna or the antenna transmission line shall be disconnected from the antenna terminal device
to prevent the introduction of dangerous voltages due to antenna pick-up.
When disconnection of the antenna or antenna transmission line is not possible, other suitable precautions shall
be taken, for example, earthing, when necessary at several places, to esablish absence of voltage.
These earthing connections shall be very short compared with the wave-lenght.
Capacitors which are connected to a circuir isolated from its supply shall be discharged and have their
terminals permanently short-circuited and the casing earthed during the whole period of the work.
The electrical charge retained by electrical machinery when stopped may, in certain cases, be sufficient to
cause a severe shock.
This shall be taken into account when making connections to an apparently "dead" machine.
Therefore all machinery shall be discharged and earthed using an adequately insulated lead for this purpose.
The discharge operation shall be repeated several times.
Before any maintenance work is carried out on automatic or remote controlled equipment, the remote
swithching circuits shall be made inoperative.
3.5.1
Procedure for determination of the absence of voltage
After the equipment has been isolated according to the standard EN60215, the absence of voltage shall be
determined at the work place.
This may be done by the use of voltage indicators, measuring instruments, glow discharge lamps for indicating
radio-frequency voltage or other suitable means.
Содержание A07E0011
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Страница 42: ...TEM A07EXXXX 1 Unit Transmitters Page 42 A07E0011 A07E0021 A07E0051 Part list ...
Страница 43: ...TEM A07EXXXX 1 Unit Transmitters Page 43 A07E0101 Part list ...
Страница 44: ...TEM A07EXXXX 1 Unit Transmitters Page 44 A07E0201 A07E0251 A07E0301 Part list ...
Страница 45: ...TEM A07EXXXX 1 Unit Transmitters Page 45 A07E0401 A07E0501 Part list ...
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Страница 64: ...TEM A07EXXXX 1 Unit Transmitters Page 64 FM 87 5 108MHz VCO MODULE 13M31620 ...
Страница 67: ...TEM A07EXXXX 1 Unit Transmitters Page 67 13M31620 Part list page 1 of 2 ...
Страница 68: ...TEM A07EXXXX 1 Unit Transmitters Page 68 13M31620 Part List page 2 of 2 ...
Страница 69: ...TEM A07EXXXX 1 Unit Transmitters Page 69 FRONT PANEL MODULE INTERFACE 13M31650 ...
Страница 72: ...TEM A07EXXXX 1 Unit Transmitters Page 72 13M31650 Part List ...
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Страница 84: ...TEM A07EXXXX 1 Unit Transmitters Page 84 RF CURRENT AMPLIFIER SENSOR MODULE 13M32110 2019 Universal Version ...
Страница 85: ...TEM A07EXXXX 1 Unit Transmitters Page 85 13M32110 Universal RF Current Amplifier Sensor Schematic Diagram ...
Страница 86: ...TEM A07EXXXX 1 Unit Transmitters Page 86 13M32110 Universal RF Current Amplifier Sensor Pert Placement Layout ...
Страница 87: ...TEM A07EXXXX 1 Unit Transmitters Page 87 13M32110 Part List ...
Страница 88: ...TEM A07EXXXX 1 Unit Transmitters Page 88 RF20 50 100 200 250W POWER AMPLIFIER MODULE 13M3188B C ...
Страница 91: ...TEM A07EXXXX 1 Unit Transmitters Page 91 13M31880B Part list ...
Страница 92: ...TEM A07EXXXX 1 Unit Transmitters Page 92 RF 300 400 500W POWER AMPLIFIER MODULE 13M72387B ...
Страница 94: ...TEM A07EXXXX 1 Unit Transmitters Page 94 13M72387B Part list ...
Страница 95: ...TEM A07EXXXX 1 Unit Transmitters Page 95 13M31760 FM HARMONICS FILTER DIRECTIONAL COUPLER Schematic Diagram ...
Страница 96: ...TEM A07EXXXX 1 Unit Transmitters Page 96 13M31760 FM HARMONICS FILTER DIRECT COUPLER Parts Placement Layout ...
Страница 97: ...TEM A07EXXXX 1 Unit Transmitters Page 97 13M31760 Part list ...
Страница 98: ...TEM A07EXXXX 1 Unit Transmitters Page 98 13M720500 500W FM PALLET AMPLIFIER Schematic Diagram S T A4 1 1 ...
Страница 99: ...TEM A07EXXXX 1 Unit Transmitters Page 99 13M720500 500W FM PALLET AMPLIFIER Parts Placement Layout S F A4 2 1 ...
Страница 100: ...TEM A07EXXXX 1 Unit Transmitters Page 100 13M720500 Part list ...
Страница 103: ...TEM A07EXXXX 1 Unit Transmitters Page 103 13M31790 Part list ...
Страница 104: ...TEM A07EXXXX 1 Unit Transmitters Page 104 RF HIGH GAIN 500W POWER AMPLIFIER MODULE 13M72387AHG OPT ...
Страница 106: ...TEM A07EXXXX 1 Unit Transmitters Page 106 13M72387AHG Part list ...
Страница 109: ...TEM A07EXXXX 1 Unit Transmitters Page 109 13M31310AD Part list ...
Страница 110: ...TEM A07EXXXX 1 Unit Transmitters Page 110 13M31321A RF High Gain Amplifier Output Board Schematic Diagram S O A3 2 1 ...
Страница 112: ...TEM A07EXXXX 1 Unit Transmitters Page 112 13M31321A Part List ...
Страница 115: ...TEM A07EXXXX 1 Unit Transmitters Page 115 13M31790 Part list ...
Страница 117: ...TEM A07EXXXX 1 Unit Transmitters Page 117 13MPWRS7524 Exciter Services AC DC Power Supply Module ...
Страница 118: ...TEM A07EXXXX 1 Unit Transmitters Page 118 13MPWRS15024 RF Power Amplifier AC DC Power Supply Module ...
Страница 119: ...TEM A07EXXXX 1 Unit Transmitters Page 119 13MPWUSP22024 RF Power Amplifier AC DC Power Supply Module ...
Страница 120: ...TEM A07EXXXX 1 Unit Transmitters Page 120 13MPWSP48048 RF Power Amplifier AC DC Power Supply Module ...
Страница 121: ...TEM A07EXXXX 1 Unit Transmitters Page 121 13MPWRSP50048 RF Power Amplifier AC DC Power Supply Module ...
Страница 122: ...TEM A07EXXXX 1 Unit Transmitters Page 122 13MPWRSP100048 RF Power Amplifier AC DC Power Supply Module ...
Страница 123: ...TEM A07EXXXX 1 Unit Transmitters Page 123 13MPWRSP200048 RF Power Amplifier AC DC Power Supply Module ...
Страница 124: ...TEM A07EXXXX 1 Unit Transmitters Page 124 13MPWNID60S4824 Internal RF Amplifier Services DC DC Power Supply ...
Страница 125: ...TEM A07EXXXX 1 Unit Transmitters 13MAESEBU0 AES EBU TO L R DECODER MODULE ...
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