Looking for recomendations for a pannel mccb board for a agricultural installation.
Looking at schnider or protuse (city own brand).
My understanding of 17th regs is as follows.
Tt with a rod / plate or tn as long as plate laid in floor, under concrete.
Then a 300ma s type main switch 4 pole...
Do you mean can only tighten from bottom. If so get a steel lock nut, weld a long side piece of steel to it. So when spins locks against casing. Job done. Used to weld lock Nuts to gland plates to make tightening easier. Then obliviousy paint welds.
Regarding earth Matt's can i use the rebar in concrete floor before concrete laid. Do you need to don't all mesh together or just clamp on to one sheet. Obliviouslt cable will be in a duct but will concrete reacted got at joint onto mesh. Seems a lot better way doing it now that knocking rods...
Hi yes we was testing separate items out of stores. So not knowing conditions of either item.
Motor was original connected to dol and ran fine.
Obliviosly links were took out to connect to 6 wire star delta.
Thinking must be delta contactor problem.
But just curious now as someone mentioned not...
No not blown it out but it runs fine when connected to dol started with links in motor 3 wire.
It seems like losing a phase / low voltage high current???
Star delta starter / motor problem.
Starter starts runs as should on bench with no motor connected. Getting 230v to e on all 6 uvw 1s and uvw2. 415 u1 to v2 etc etc. But nothing 1 to 2s. As expected.
When motor connected up. (Single speed) it takes 3a in start on all . Drops into run fine but...
That was my thinking but don't want to open light up. Must have been a old halogen light that was fitted with perm live and sw live terminal or cut into pir / lamp circuit
Been to fit new led pir flood. 3core +e. Perm live. Sw live. N e.
Flood is 2core. So wired it perm live set up works a treat. Customer rings up wants it on switch. After investigating switch is a 2 way.. any way of doing this so works on pir then on with switch.
It's a sealed led...
20 questions on building regs related to part p (electric). Just done it trough work.(dont ask as we mainly do industrial ) Never looked at book until exam. 20 multi choice questions using book. 95%. As said its just a certificate to say you under stand building regs, or can read a book.
Been back and pulled main fuse to house, n to e voltage drops to 3.8v, still couldn't get live test ze, but got L to n ze 0.4 ohms. Rcbo no tests fine with house disconnected. Owner wont let me do insulation test on there swa house supply. So had to leave fault i presum coming from...
Been to look at a faulty socket on a rcbo and wont hold in, tried to test trip times etc but reading voltage on earth. Supply is tt, 3ph and 1 ph to a domestic property. Shared earth rod. Cant turn house off as belongs to separate person. So tested voltage at 3 ph db, 230, 400 v etc but...
Or when fitting a shower pull switch please drill the nogin of wood out bigger than the actual size of two cables so later date you can move cables to change pull switch.
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