Shielding kits of Ep-4(z) type

- Brief description
- Detailed description
- Shielding kits of Ep-1 type
- Shielding kits of Ep-3 type
- Shielding kits of Ep-(L) type
- Shielding kits of Ep-4(z) type
- Shielding kits of Ep-4(0) type
Shielding kits of Ep-4(Z) type are intended for live working at non-deactivated HVL at voltage 110-1150 kV inclusively as well as for live working at earth potential (pillars and cross-arms) during cold season.
Kits provide protection against impact of:
electric field including constant critical tension of a wire surface;
any displacement current of any magnitude of voltage;
pulse current under electrical contact loss of shielding kit with line wire;
air ions especially heavy ones (aerosols) inhalation of which is inadmissible;
electromagnetic field produced by corona discharge.
Shielding kits of Ep-4(Z) type are completed with elements galvanically bonded to each other:
Insulated shielding jacket with hood;
Insulated shielding jumpsuit;
shielding helmet cover;
face shield with fastening to helmet;
shielding knitted gloves;
leather made shielding boots or cold-protective shielding boots.
The kit is certified by the State Standardization Organization (Gosstandard) and State Sanitary-and-Epidemiologic Institution of the Russian Federation.
Specifications
Kit shielding factor in dB not less than: |
60 (1000 relative units) |
|
Reduction factor of air ions concentration in inhaled air, relative units, not less than: |
light |
3 |
heavy |
12 |
|
Resistance of shielding clothing in Ohm, not more than |
10 |
|
Resistance of shielding gloves in Ohm, not more than |
30 |
|
Resistance of shielding boots in Ohm, not more than |
500 |
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