What is E.M.F SHIELDING?
E.M.F shielding is a procedure that limits the coupling of a magnetic field among two locations.
Unlike electricity, magnetic fields cannot be clogged-up or insulated, which makes magnetic shielding necessary.
This is describe in one of Maxwell’s Equations, del dot B = 0, which means that there are no magnetic monopoles. So, magnetic field lines must finish on the opposite pole.
There is no method to block these field lines; nature will find a path to revisit the magnetic field lines back to a contradictory pole. This means that even if a nonmagnetic entity — for example, glass — is placed among the poles of a horseshoe magnet, the magnetic field will not alter.
Instead of attempting to stop this magnetic field outline, magnetic shielding re-routes them around an entity. This is done by surrounding the gadget to be shielded with a magnetic material. Magnetic permeability explains the capability of a material to be magnetized. If the textile used has a greater permeability than the object within, the magnetic field will tend to flow along this material, avoiding the objects within. Thus, the magnetic field lines are permitted to cease on opposite poles, but are merely redirected.
Requirement for EMF Shielding
E.M.F shielding is required where there are engaged areas (apartments, offices or retail spaces) located next to or over substations, switch rooms or high current power cabling, to reduce occupants revelation to 50 Hz E.M.F shielding fields associated with the elevated current carrying cables and transformers.
EMF Shielding material
“M36 Shield” is ideal for EMF shielding of 50 Hz power occurrence magnetic fields from substations, switchboards and connected electrical cabling.
When magnetic fields meet “M36 Shield”, the magnetic forces are both engrossed by and redirected away from the region of concern.
“M36 Shield” is supplied in person sheets measuring 1 m x 2.4 m x 0.5 mm. Usually 4 or more layers are necessary with the butt joints of each layer stagger away from the butt joint of the layer below.
Performance characteristics
The EMF shielding performance of “M36 Shield” will differ according to the concentration of the magnetic field it is subjected to (the higher the magnetic field the better the decrease performance).
2 layers of “M36 Shield” are normal to offer a reduction to magnetic fields by a factor of 3 to 6 times (10 to 15 dB of attenuation), while each succeeding layer of “M36 Shield” will have deteriorating reduction performance (as the magnetic field intensity is reduced).










