|
For an AC MAINS SUPPLY not exceeding 300 V r.m.s. (420 V peak):; D# C6 i5 b( m/ Y
a) if the PEAK WORKING VOLTAGE does not exceed the peak value of the AC MAINS SUPPLY
8 c( X# M# e& d' X" ?) P3 `voltage, minimum CLEARANCES are determined from Table 2K;6 g! T5 c Y1 }7 X# f. o% }
b) if the PEAK WORKING VOLTAGE exceeds the peak value of the AC MAINS SUPPLY voltage,
- N$ U k( v4 rthe minimum CLEARANCE is the sum of the following two values:
: o3 u3 {+ k' n• the minimum CLEARANCE from Table 2K; and. c5 R+ S d3 @
• the appropriate additional CLEARANCE from Table 2L.' _: i( s' L4 l; R0 P& `" `
/ p" d( B, R6 X. E( v$ Y; L标准中的b)第一点中“the minimum CLEARANCE”是相对于什么的最小间隙呢?? |
|